skint/i.c
2023-04-03 11:31:56 -04:00

4732 lines
127 KiB
C

/* i.c -- instructions */
#include "n.h"
#include "i.h"
/* imports */
extern obj cx__2Aglobals_2A;
extern obj cx__2Atransformers_2A;
extern obj cx__2Adynamic_2Dstate_2A;
extern obj cx_continuation_2Dadapter_2Dcode;
extern obj cx_callmv_2Dadapter_2Dclosure;
extern obj cx__2Acurrent_2Dinput_2A;
extern obj cx__2Acurrent_2Doutput_2A;
extern obj cx__2Acurrent_2Derror_2A;
//#define istagged(o, t) istagged_inlined(o, t)
/* forwards */
static struct intgtab_entry *lookup_integrable(int sym);
static int isintegrable(obj x);
static struct intgtab_entry *integrabledata(obj x);
static obj mkintegrable(struct intgtab_entry *);
static int integrable_type(struct intgtab_entry *pi);
static const char *integrable_global(struct intgtab_entry *pi);
static const char *integrable_code(struct intgtab_entry *pi, int n);
static obj *rds_intgtab(obj *r, obj *sp, obj *hp);
static obj *rds_stox(obj *r, obj *sp, obj *hp);
static obj *rds_stoc(obj *r, obj *sp, obj *hp);
static obj *init_modules(obj *r, obj *sp, obj *hp);
/* platform-dependent optimizations */
#if defined(__clang__)
#define unlikely(x) __builtin_expect(x, 0)
#define likely(x) __builtin_expect(x, 1)
#if __clang_major__ >= 13
#define VM_AC_IN_REG
#define outofline __attribute__((noinline))
#define VM_MUSTTAIL_GUARANTEE
#define musttail __attribute__((musttail))
#define regcall __regcall
#define noalias restrict
#else
#define outofline
#define musttail
#define regcall
#define noalias
#endif
/* #pragma GCC optimize ("align-functions=16") */
#define nochecks __attribute__((no_stack_protector, aligned(8)))
/* __attribute__((nocf_check)) */
#define VM_INS_CODE_ALIGNED
#else
#define unlikely(x) (x)
#define likely(x) (x)
#define outofline
#define musttail
#define regcall
#define noalias
#define nochecks
#endif
/* copying objects */
#ifndef OBJCOPY_LOOP
#define objcpy(dst, src, cnt) \
memcpy((dst), (src), (cnt)*sizeof(obj))
#define objmove_left(dst, src, cnt) \
memmove((dst), (src), (cnt)*sizeof(obj))
#define objmove(dst, src, cnt) \
memmove((dst), (src), (cnt)*sizeof(obj))
#else
#define objcpy(dst, src, cnt) \
do { obj *noalias dp__ = (dst), *noalias sp__ = (src); int n__ = (cnt); \
while (n__-- > 0) *dp__++ = *sp__++; } while(0)
#define objmove_left(dst, src, cnt) \
do { int n__ = (cnt); obj *dp__ = (dst), *sp__ = (src); \
while (n__-- > 0) *dp__++ = *sp__++; } while(0)
#define objmove_right(dst, src, cnt) \
do { int n__ = (cnt); obj *dp__ = (dst)+n__, *sp__ = (src)+n__; \
while (n__-- > 0) *--dp__ = *--sp__; } while(0)
#define objmove(dst, src, cnt) \
do { int n__ = (cnt); obj *dp__ = (dst), *sp__ = (src); \
if (dp__ > sp__) { dp__ += n__, sp__ += n; while (n__-- > 0) *--dp__ = *--sp__; } \
else if (dp__ < sp__) while (n__-- > 0) *dp__++ = *sp__++; } while(0)
#endif
#ifdef VM_INS_CODE_ALIGNED /* direct representation */
#define ins_from_obj(x) ((ins_t)(x))
#else /* indirect representation (alignment needed) */
#define ins_from_obj(x) (*(ins_t*)(x))
#endif
/* instruction calling convention (platform-dependent) */
#ifdef VM_AC_IN_REG
#define ILOCALS obj ac, *r, *ip, *sp, *hp
#define IPARAMS obj ac, obj *noalias r, obj *noalias ip, obj *noalias sp, obj *noalias hp
#define IARGS ac, r, ip, sp, hp
#define IARGS1 ac, r, ip+1, sp, hp
#define unload_ac() (ra = ac)
#define reload_ac() (ac = ra)
#else
#define ILOCALS obj *r, *ip, *sp, *hp
#define IPARAMS obj *r, obj *noalias ip, obj *noalias sp, obj *noalias hp
#define IARGS r, ip, sp, hp
#define IARGS1 r, ip+1, sp, hp
#define ac ra
#define unload_ac() (0)
#define reload_ac() (0)
#endif
/* gc-safe obj registers; some of them used for saving/restoring during gc */
#define rk (r[0]) /* #f or any non-false value for unwindi; run result */
#define ra (r[1]) /* shadow reg for the accumulator (argc on call) */
#define rx (r[2]) /* next instruction (index in closure's code) */
#define rd (r[3]) /* current closure/display (vector of [0]=code, display) */
#define rs (r[4]) /* shadow reg for stack pointer */
#define rz (r[5]) /* red zone for stack pointer (r + len - rsz) */
/* the rest of the register file is used as a stack */
#define VM_REGC 6 /* r[0] ... r[5] */
#define VM_STACK_LEN 256000 /* r[6] ... r[256005] */
#define VM_STACK_RSZ 256 /* red zone for overflow checks */
#define VM_STACK_GSZ (VM_STACK_LEN-VM_STACK_RSZ)
/* faster non-debug type testing */
#ifdef NDEBUG /* quick */
static int istagged_inline(obj o, int t) { return isobjptr(o) && hblkref(o, 0) == obj_from_size(t); }
#define istagged(o, t) istagged_inline(o, t)
#endif
/* box representation extras */
#define boxbsz() hbsz(1+1)
#define hend_box() (*--hp = obj_from_size(BOX_BTAG), hendblk(1+1))
/* pair representation extras */
#define pairbsz() hbsz(2+1)
#define hend_pair() (*--hp = obj_from_size(PAIR_BTAG), hendblk(2+1))
/* vector representation extras */
#define vecbsz(n) hbsz((n)+1)
#define hend_vec(n) (*--hp = obj_from_size(VECTOR_BTAG), hendblk((n)+1))
/* record representation extras */
#define recbsz(c) hbsz((c)+1)
#define hend_rec(rtd, c) (*--hp = rtd, hendblk((c)+1))
/* vm closure representation */
#ifdef NDEBUG /* quick */
#define isvmclo(x) (isobjptr(x) && isobjptr(hblkref(x, 0)))
#define vmcloref(x,i) hblkref(x, i)
#define vmclolen(x) hblklen(x)
#define vmclobsz(c) hbsz(c)
#define hend_vmclo(c) hendblk(c)
#else /* slow but thorough */
#define isvmclo isprocedure
#define vmcloref *procedureref
#define vmclolen procedurelen
#define vmclobsz(c) hbsz(c)
#define hend_vmclo(c) hendblk(c)
#endif
/* vm tuple representation (c != 1) */
#define istuple(x) istagged(x, 0)
#define tupleref(x,i) *taggedref(x, 0, i)
#define tuplelen(x) taggedlen(x, 0)
#define tuplebsz(c) hbsz((c)+1)
#define hend_tuple(c) (*--hp = obj_from_size(0), hendblk((c)+1))
/* in/re-loading gc-save shadow registers */
#define unload_ip() (rx = obj_from_fixnum(ip - &vectorref(vmcloref(rd, 0), 0)))
#define reload_ip() (ip = &vectorref(vmcloref(rd, 0), fixnum_from_obj(rx)))
#define unload_sp() (rs = obj_from_fixnum(sp - r))
#define reload_sp() (sp = r + fixnum_from_obj(rs))
/* access to stack, display, global cells */
#define sref(i) (sp[-(i)-1])
#define dref(i) (vmcloref(rd, (i)+1))
#define gref(p) (boxref(p))
#ifdef _DEBUG
static void _sck(obj *s) {
assert(s != NULL);
assert(s >= cxg_regs + VM_REGC);
assert(s < cxg_rend);
}
#define spush(o) (_sck(sp), *sp++ = o)
#define spop() (_sck(sp), *--sp)
#define sdrop(n) (_sck(sp), sp -= (n))
#define sgrow(n) (_sck(sp), sp += (n))
#else
#define spush(o) (*sp++ = o)
#define spop() (*--sp)
#define sdrop(n) (sp -= (n))
#define sgrow(n) (sp += (n))
#endif
/* reserving heap memory inside instructions */
#define hp_reserve(n) do { \
if (unlikely(hp < cxg_heap + (n))) { \
unload_ac(); unload_ip(); \
hp = cxm_hgc(r, sp, hp, n); \
reload_ac(); reload_ip(); \
} } while (0)
#define hp_reserve_inline(n) \
((hp < cxg_heap + (n)) \
? (unload_ac(), unload_ip(), hp = cxm_hgc(r, sp, hp, (n)), reload_ac(), reload_ip(), hp) \
: hp)
#define hp_pushptr(p, pt) \
(hp_reserve_inline(2), *--hp = (obj)(p), *--hp = (obj)(pt), (obj)(hp+1))
/* object representation extras */
#define bool_obj(b) obj_from_bool(b)
#define is_bool(o) is_bool_obj(o)
#define get_bool(o) bool_from_obj(o)
#define char_obj(b) obj_from_char(b)
#define is_char(o) is_char_obj(o)
#define get_char(o) char_from_obj(o)
#define void_obj() obj_from_void(0)
#define is_void(o) (o == obj_from_void(0))
#define unit_obj() obj_from_unit()
#define is_unit(o) (o == obj_from_unit())
#define null_obj() mknull()
#define is_null(o) isnull(o)
#define eof_obj() mkeof()
#define is_eof(o) ((o) == mkeof())
#define fixnum_obj(x) obj_from_fixnum(x)
#define is_fixnum(o) is_fixnum_obj(o)
#define are_fixnums(o1, o2) (is_fixnum(o1) && is_fixnum(o2))
#define get_fixnum(o) fixnum_from_obj(o)
#define is_byte(o) is_byte_obj(o)
#define byte_obj(x) obj_from_fixnum((unsigned char)(x))
#define get_byte(o) ((unsigned char)fixnum_from_obj(o))
#ifdef FLONUMS_BOXED
#define flonum_obj(x) hp_pushptr(dupflonum(x), FLONUM_NTAG)
#define is_flonum(o) is_flonum_obj(o)
#define get_flonum(o) flonum_from_obj(o)
#else
#define flonum_obj(x) obj_from_flonum(0, x)
#define is_flonum(o) is_flonum_obj(o)
#define get_flonum(o) flonum_from_obj(o)
#endif
#define is_symbol(o) issymbol(o)
#define get_symbol(o) getsymbol(o)
#define is_pair(o) ispair(o)
#define pair_car(o) car(o)
#define pair_cdr(o) cdr(o)
#define is_list(o) islist(o)
#define is_circular(o) iscircular(o)
#define is_noncircular(o) (!iscircular(o))
#define is_vector(o) isvector(o)
#define vector_len(o) vectorlen(o)
#define vector_ref(o, i) vectorref(o, i)
#define string_obj(s) hp_pushptr((s), STRING_NTAG)
#define is_string(o) isstring(o)
#define string_len(o) stringlen(o)
#define string_ref(o, i) (*stringref(o, i))
#define bytevector_obj(s) hp_pushptr((s), BYTEVECTOR_NTAG)
#define is_bytevector(o) isbytevector(o)
#define bytevector_len(o) bytevectorlen(o)
#define bytevector_ref(o, i) (*bytevectorref(o, i))
#define iport_file_obj(fp) hp_pushptr((fp), IPORT_FILE_NTAG)
#define oport_file_obj(fp) hp_pushptr((fp), OPORT_FILE_NTAG)
#define iport_string_obj(fp) hp_pushptr((fp), IPORT_STRING_NTAG)
#define oport_string_obj(fp) hp_pushptr((fp), OPORT_STRING_NTAG)
#define iport_bytevector_obj(fp) hp_pushptr((fp), IPORT_BYTEVECTOR_NTAG)
#define oport_bytevector_obj(fp) hp_pushptr((fp), OPORT_BYTEVECTOR_NTAG)
#define is_iport(o) isiport(o)
#define is_oport(o) isoport(o)
#define is_box(o) isbox(o)
#define box_ref(o) boxref(o)
#define is_proc(o) isvmclo(o)
#define is_tuple(o) (isrecord(o) && recordrtd(o) == 0)
#define tuple_len(o) tuplelen(o)
#define tuple_ref(o, i) tupleref(o, i)
#define is_record(o) (isrecord(o) && recordrtd(o) != 0)
#define record_rtd(o) recordrtd(o)
#define record_len(o) recordlen(o)
#define record_ref(o, i) recordref(o, i)
/* cxi instructions protocol; retval is new hp: */
typedef obj* regcall (*ins_t)(IPARAMS);
/* calling next instruction and returning from instruction */
#define goih(ih) musttail return ((ih)(IARGS))
#define goi(name) musttail return (glue(cxi_, name)(IARGS))
#define gonexti() musttail return ((ins_from_obj(*ip))(IARGS1))
#define unwindi(c) return (unload_ac(), unload_ip(), rd = (c), hp)
#define check_sp() if (unlikely(sp > (obj*)rz)) fail("stack overflow")
#ifdef VM_MUSTTAIL_GUARANTEE
#define callsubi() check_sp(); reload_ip(); gonexti()
#define retfromi() reload_ip(); gonexti()
#define trampcnd() (0)
#else
#define callsubi() check_sp(); unload_sp(); return hp
#define retfromi() unload_sp(); return hp
#define trampcnd() (rd)
#endif
/* defining instruction helpers */
#define define_instrhelper(name) \
static obj* regcall outofline nochecks name(IPARAMS)
/* defining and binding instructions */
#define define_instruction(name) \
obj* regcall nochecks glue(cxi_, name)(IPARAMS)
#ifdef VM_INS_CODE_ALIGNED
#define declare_instruction_global(name) \
obj glue(cx_ins_2D, name) = (obj)(&glue(cxi_, name));
#else
#define declare_instruction_global(name) \
static ins_t glue(cxib_, name)[1] = { &glue(cxi_, name) }; \
obj glue(cx_ins_2D, name) = (obj)(&glue(cxib_, name)[0]);
#endif
static obj vmhost(obj);
obj vmcases[13] = {
(obj)vmhost, (obj)vmhost, (obj)vmhost, (obj)vmhost,
(obj)vmhost, (obj)vmhost, (obj)vmhost, (obj)vmhost,
(obj)vmhost, (obj)vmhost, (obj)vmhost, (obj)vmhost,
(obj)vmhost
};
/* vmhost procedure */
static obj vmhost(obj pc)
{
ILOCALS;
int rc = cxg_rc, i;
r = cxg_regs; hp = cxg_hp;
jump:
switch (objptr_from_obj(pc)-vmcases) {
case 0: /* execute-thunk-closure */
/* r[0] = self, r[1] = k, r[2] = closure */
{ obj k, arg;
assert(rc == 3);
k = r[1]; arg = r[2];
r = cxm_rgc(NULL, VM_REGC + VM_STACK_LEN);
rk = k; /* continuation, kept there */
ra = obj_from_fixnum(0); /* argc, shadow ac */
rx = obj_from_fixnum(0); /* shadow ip */
rd = arg; /* thunk closure to execute */
rs = obj_from_fixnum(VM_REGC); /* sp */
rz = (obj)(r + VM_STACK_GSZ); /* sp red zone */
do { /* unwindi trampoline */
reload_ac(); /* ra => ac */
reload_ip(); /* rd/rx => ip */
reload_sp(); /* rs => sp */
hp = (ins_from_obj(*ip))(IARGS1);
} while (likely(trampcnd()));
/* r[0] = k, r[1] = result */
r[2] = r[1];
r[1] = obj_from_ktrap();
pc = objptr_from_obj(r[0])[0];
rc = 3;
goto jump; }
case 1: /* make-closure */
/* r[0] = clo, r[1] = k, r[2] = code */
{ assert(rc == 3);
r[0] = r[1]; r[1] = r[2];
/* r[0] = k; r[1] = code */
hreserve(vmclobsz(1), 2); /* 2 live regs */
*--hp = r[1];
r[2] = hend_vmclo(1);
r[1] = obj_from_ktrap();
pc = objptr_from_obj(r[0])[0];
rc = 3;
goto jump; }
case 2: /* decode-sexp */
/* r[0] = clo, r[1] = k, r[2] = xstr */
{ assert(rc == 3);
r[0] = r[1]; r[1] = r[2];
/* r[0] = k; r[1] = xstr */
for (i = 3; i < VM_REGC; ++i) r[i] = 0;
rz = (obj)(r + VM_STACK_GSZ); /* sp red zone */
hp = rds_stox(r, r+VM_REGC, hp); /* r[1] -> r[1] */
r[2] = r[1]; r[1] = obj_from_ktrap();
/* r[0] = k; r[1] = ek; r[2] = code */
pc = objptr_from_obj(r[0])[0];
rc = 3;
goto jump; }
case 3: /* decode-code */
/* r[0] = clo, r[1] = k, r[2] = cstr */
{ assert(rc == 3);
r[0] = r[1]; r[1] = r[2];
/* r[0] = k; r[1] = cstr */
for (i = 3; i < VM_REGC; ++i) r[i] = 0;
rz = (obj)(r + VM_STACK_GSZ); /* sp red zone */
hp = rds_stoc(r, r+VM_REGC, hp); /* r[1] -> r[1] */
r[2] = r[1]; r[1] = obj_from_ktrap();
/* r[0] = k; r[1] = ek; r[2] = code */
pc = objptr_from_obj(r[0])[0];
rc = 3;
goto jump; }
case 4: /* find-integrable-encoding */
/* r[0] = clo, r[1] = k, r[2] = id, r[3] = argc */
{ assert(rc == 4);
r[2] = obj_from_bool(0);;
r[0] = r[1]; r[1] = obj_from_ktrap();
pc = objptr_from_obj(r[0])[0];
rc = 3;
goto jump; }
case 5: /* encode-integrable */
/* r[0] = clo, r[1] = k, r[2] = argc, r[3] = pe, r[4] = port */
{ assert(rc == 5);
assert(0);
r[0] = r[1]; r[1] = obj_from_ktrap();
pc = objptr_from_obj(r[0])[0];
rc = 3;
goto jump; }
case 6: /* install-global-lambdas */
/* r[0] = clo, r[1] = k */
{ assert(rc == 2);
r[0] = r[1];
for (i = 2; i < VM_REGC; ++i) r[i] = 0;
rz = (obj)(r + VM_STACK_GSZ); /* sp red zone */
hp = rds_intgtab(r, r+VM_REGC, hp);
r[1] = obj_from_ktrap();
r[2] = obj_from_void(0);
pc = objptr_from_obj(r[0])[0];
rc = 3;
goto jump; }
case 7: /* initialize-modules */
/* r[0] = clo, r[1] = k */
{ assert(rc == 2);
r[0] = r[1];
r = cxm_rgc(NULL, VM_REGC + VM_STACK_LEN);
for (i = 2; i < VM_REGC; ++i) r[i] = 0;
rz = (obj)(r + VM_STACK_GSZ); /* sp red zone */
hp = init_modules(r, r+VM_REGC, hp);
r[1] = obj_from_ktrap();
r[2] = obj_from_void(0);
pc = objptr_from_obj(r[0])[0];
rc = 3;
goto jump; }
case 8: /* integrable? */
/* r[0] = clo, r[1] = k, r[2] = obj */
{ assert(rc == 3);
r[2] = obj_from_bool(isintegrable(r[2]));
r[0] = r[1]; r[1] = obj_from_ktrap();
pc = objptr_from_obj(r[0])[0];
rc = 3;
goto jump; }
case 9: /* lookup-integrable */
/* r[0] = clo, r[1] = k, r[2] = id */
{ assert(rc == 3);
if (issymbol(r[2])) {
int sym = getsymbol(r[2]);
struct intgtab_entry *pe = lookup_integrable(sym);
r[2] = pe ? mkintegrable(pe) : obj_from_bool(0);
} else r[2] = obj_from_bool(0);
r[0] = r[1]; r[1] = obj_from_ktrap();
pc = objptr_from_obj(r[0])[0];
rc = 3;
goto jump; }
case 10: /* integrable-type */
/* r[0] = clo, r[1] = k, r[2] = ig */
{ assert(rc == 3);
if (isintegrable(r[2])) {
int it = integrable_type(integrabledata(r[2]));
r[2] = it ? obj_from_char(it) : obj_from_bool(0);
} else r[2] = obj_from_bool(0);
r[0] = r[1]; r[1] = obj_from_ktrap();
pc = objptr_from_obj(r[0])[0];
rc = 3;
goto jump; }
case 11: /* integrable-global */
/* r[0] = clo, r[1] = k, r[2] = ig */
{ assert(rc == 3);
if (isintegrable(r[2])) {
const char *igs = integrable_global(integrabledata(r[2]));
r[2] = igs ? mksymbol(internsym((char*)igs)) : obj_from_bool(0);
} else r[2] = obj_from_bool(0);
r[0] = r[1]; r[1] = obj_from_ktrap();
pc = objptr_from_obj(r[0])[0];
rc = 3;
goto jump; }
case 12: /* integrable-code */
/* r[0] = clo, r[1] = k, r[2] = ig, r[3] = i */
{ assert(rc == 4);
if (isintegrable(r[2]) && is_fixnum(r[3])) {
const char *cs = integrable_code(integrabledata(r[2]), get_fixnum(r[3]));
r[2] = cs ? hpushstr(3, newstring((char*)cs)) : obj_from_bool(0);
} else r[2] = obj_from_bool(0);
r[0] = r[1]; r[1] = obj_from_ktrap();
pc = objptr_from_obj(r[0])[0];
rc = 3;
goto jump; }
default: /* inter-host call */
cxg_hp = hp;
cxm_rgc(r, 1);
cxg_rc = rc;
return pc;
}
}
/* instructions for basic vm machinery */
define_instrhelper(cxi_fail) {
fprintf(stderr, "run-time failure: %s\n", (char*)ac);
ac = void_obj();
unwindi(0);
}
define_instrhelper(cxi_failactype) {
char *msg = (char*)spop(); obj p;
fprintf(stderr, "run-time failure: argument is not a %s:\n", msg);
p = oport_file_obj(stderr); spush(p);
oportputcircular(ac, p, 0);
fputc('\n', stderr);
spop();
ac = void_obj();
unwindi(0);
}
#define fail(msg) do { ac = (obj)msg; musttail return cxi_fail(IARGS); } while (0)
#define failtype(x, msg) do { ac = (x); spush((obj)msg); musttail return cxi_failactype(IARGS); } while (0)
#define failactype(msg) do { spush((obj)msg); musttail return cxi_failactype(IARGS); } while (0)
#define ckp(x) do { obj _x = (x); if (unlikely(!is_pair(_x))) \
{ ac = _x; spush((obj)"pair"); musttail return cxi_failactype(IARGS); } } while (0)
#define ckl(x) do { obj _x = (x); if (unlikely(!is_list(_x))) \
{ ac = _x; spush((obj)"list"); musttail return cxi_failactype(IARGS); } } while (0)
#define cku(x) do { obj _x = (x); if (unlikely(!is_null(_x))) \
{ ac = _x; spush((obj)"proper list"); musttail return cxi_failactype(IARGS); } } while (0)
#define cko(x) do { obj _x = (x); if (unlikely(!is_record(_x))) \
{ ac = _x; spush((obj)"record"); musttail return cxi_failactype(IARGS); } } while (0)
#define ckv(x) do { obj _x = (x); if (unlikely(!is_vector(_x))) \
{ ac = _x; spush((obj)"vector"); musttail return cxi_failactype(IARGS); } } while (0)
#define ckc(x) do { obj _x = (x); if (unlikely(!is_char(_x))) \
{ ac = _x; spush((obj)"char"); musttail return cxi_failactype(IARGS); } } while (0)
#define cks(x) do { obj _x = (x); if (unlikely(!is_string(_x))) \
{ ac = _x; spush((obj)"string"); musttail return cxi_failactype(IARGS); } } while (0)
#define ckb(x) do { obj _x = (x); if (unlikely(!is_bytevector(_x))) \
{ ac = _x; spush((obj)"bytevector"); musttail return cxi_failactype(IARGS); } } while (0)
#define cki(x) do { obj _x = (x); if (unlikely(!is_fixnum(_x))) \
{ ac = _x; spush((obj)"fixnum"); musttail return cxi_failactype(IARGS); } } while (0)
#define ckj(x) do { obj _x = (x); if (unlikely(!is_flonum(_x))) \
{ ac = _x; spush((obj)"flonum"); musttail return cxi_failactype(IARGS); } } while (0)
#define ckn(x) do { obj _x = (x); if (unlikely(!is_fixnum(_x) && !is_flonum(_x))) \
{ ac = _x; spush((obj)"number"); musttail return cxi_failactype(IARGS); } } while (0)
#define ckk(x) do { obj _x = (x); if (unlikely(!is_fixnum(_x) || get_fixnum(_x) < 0)) \
{ ac = _x; spush((obj)"nonnegative fixnum"); musttail return cxi_failactype(IARGS); } } while (0)
#define ck8(x) do { obj _x = (x); if (unlikely(!is_byte(_x))) \
{ ac = _x; spush((obj)"byte"); musttail return cxi_failactype(IARGS); } } while (0)
#define cky(x) do { obj _x = (x); if (unlikely(!is_symbol(_x))) \
{ ac = _x; spush((obj)"symbol"); musttail return cxi_failactype(IARGS); } } while (0)
#define ckr(x) do { obj _x = (x); if (unlikely(!is_iport(_x))) \
{ ac = _x; spush((obj)"input port"); musttail return cxi_failactype(IARGS); } } while (0)
#define ckw(x) do { obj _x = (x); if (unlikely(!is_oport(_x))) \
{ ac = _x; spush((obj)"output port"); musttail return cxi_failactype(IARGS); } } while (0)
#define ckx(x) do { obj _x = (x); if (unlikely(!is_proc(_x))) \
{ ac = _x; spush((obj)"procedure"); musttail return cxi_failactype(IARGS); } } while (0)
#define ckz(x) do { obj _x = (x); if (unlikely(!is_box(_x))) \
{ ac = _x; spush((obj)"box, cell, or promise"); musttail return cxi_failactype(IARGS); } } while (0)
#define ckg(x) do { obj _x = (x); if (unlikely(!isintegrable(_x))) \
{ ac = _x; spush((obj)"integrable entry"); musttail return cxi_failactype(IARGS); } } while (0)
define_instruction(halt) {
unwindi(0);
}
define_instruction(panic) {
obj l, p; cks(ac); ckl(sref(0));
p = oport_file_obj(stderr);
fprintf(stderr, "error: %s", stringchars(ac));
if (is_pair(sref(0))) fputs(":\n", stderr);
else fputs("\n", stderr);
for (l = sref(0); is_pair(l); l = pair_cdr(l)) {
oportputcircular(pair_car(l), p, 0);
fputc('\n', stderr);
}
sdrop(1);
ac = void_obj();
unwindi(0);
}
define_instruction(abort) {
/* exit code ignored */
abort();
unwindi(0);
}
define_instruction(exit) {
int excode;
if (ac == bool_obj(0)) excode = 1;
else if (ac == bool_obj(1)) excode = 0;
else if (is_fixnum(ac)) excode = (int)get_fixnum(ac);
else excode = 1;
exit(excode);
unwindi(0);
}
define_instruction(lit) {
ac = *ip++;
gonexti();
}
define_instruction(sref) {
int i = get_fixnum(*ip++);
ac = sref(i);
gonexti();
}
define_instruction(dref) {
int i = get_fixnum(*ip++);
ac = dref(i);
gonexti();
}
define_instruction(gref) {
obj p = *ip++;
ac = gref(p);
gonexti();
}
define_instruction(iref) {
ac = box_ref(ac);
gonexti();
}
define_instruction(iset) {
box_ref(ac) = spop();
gonexti();
}
define_instruction(dclose) {
int i, n = get_fixnum(*ip++), c = n+1;
hp_reserve(vmclobsz(c));
for (i = n-1; i >= 0; --i) *--hp = sref(i); /* display */
*--hp = *ip++; /* code */
ac = hend_vmclo(c); /* closure */
sdrop(n);
gonexti();
}
define_instruction(sbox) {
int i = get_fixnum(*ip++);
hp_reserve(boxbsz());
*--hp = sref(i);
sref(i) = hend_box();
gonexti();
}
define_instruction(br) {
int dx = get_fixnum(*ip++);
ip += dx;
gonexti();
}
define_instruction(brt) {
int dx = get_fixnum(*ip++);
if (ac) ip += dx;
gonexti();
}
define_instruction(brnot) {
int dx = get_fixnum(*ip++);
if (!ac) ip += dx;
gonexti();
}
define_instruction(andbo) {
if (ac) { /* go to next binary instruction w/2 args */
ac = spop();
} else { /* skip the next instruction, drop its args */
sdrop(2);
ip += 1;
}
gonexti();
}
define_instruction(sseti) {
int i = get_fixnum(*ip++);
box_ref(sref(i)) = ac;
gonexti();
}
define_instruction(dseti) {
int i = get_fixnum(*ip++);
box_ref(dref(i)) = ac;
gonexti();
}
define_instruction(gloc) {
ac = *ip++;
gonexti();
}
define_instruction(gset) {
obj p = *ip++;
gref(p) = ac;
gonexti();
}
define_instruction(appl) {
int n, i; obj l = spop(), t = l;
for (n = 0; is_pair(t); t = pair_cdr(t)) ++n; sgrow(n);
for (i = 0; i < n; ++i, l = pair_cdr(l)) sref(i) = pair_car(l);
ckx(ac); rd = ac; rx = fixnum_obj(0);
ac = fixnum_obj(n); /* argc */
callsubi();
}
define_instruction(cwmv) {
obj t = ac, x = spop();
ckx(t); ckx(x);
/* we can run in constant space in some situations */
if (vmcloref(x, 0) == cx_continuation_2Dadapter_2Dcode
&& vmcloref(x, 1) == cx__2Adynamic_2Dstate_2A) {
/* arrange call of t with x as continuation */
/* [0] adapter_code, [1] dynamic_state */
int n = vmclolen(x) - 2;
assert((cxg_rend - cxg_regs - VM_REGC) > n);
sp = r + VM_REGC; /* stack is empty */
objcpy(sp, &vmcloref(x, 2), n);
sp += n; /* contains n elements now */
rd = t; rx = fixnum_obj(0);
ac = fixnum_obj(0);
callsubi();
} else {
/* arrange return to cwmv code w/x */
spush(x);
spush(cx_callmv_2Dadapter_2Dclosure);
spush(fixnum_obj(0));
/* call the producer */
rd = t; rx = fixnum_obj(0); ac = fixnum_obj(0);
callsubi();
}
}
define_instruction(rcmv) {
/* single-value producer call returns here with result in ac, cns on stack */
obj val = ac, x = spop();
/* tail-call the consumer with the returned value(s) */
if (is_unit(val)) { /* (values) in improper context */
ac = fixnum_obj(0);
} else if (is_tuple(val)) { /* (values a1 a2 a ...) in improper context */
int n = tuple_len(val), i;
for (i = n-1; i >= 0; --i) spush(tuple_ref(val, i));
ac = fixnum_obj(n);
} else { /* regular single value */
spush(val); ac = fixnum_obj(1);
}
rd = x; rx = fixnum_obj(0);
callsubi();
}
define_instruction(sdmv) {
/* sending values on stack, ac contains argc */
if (ac == fixnum_obj(1)) {
/* can return anywhere, including rcmv */
ac = spop();
rx = spop();
rd = spop();
retfromi();
} else {
/* can only pseudo-return to rcmv */
int n = get_fixnum(ac), m = 3, i;
if (sref(n) == fixnum_obj(0) && sref(n+1) == cx_callmv_2Dadapter_2Dclosure) {
/* tail-call the consumer with the produced values */
rd = sref(n+2); rx = fixnum_obj(0); /* cns */
/* NB: can be sped up for popular cases: n == 0, n == 2 */
objmove_left(sp-n-m, sp-n, n);
sdrop(m); callsubi();
} else if (n == 0) { /* return unit (n = 0) */
ac = unit_obj();
rx = spop();
rd = spop();
retfromi();
} else { /* return args as tuple (n > 1) */
hp_reserve(tuplebsz(n));
for (i = n-1; i >= 0; --i) *--hp = sref(i);
ac = hend_tuple(n);
sdrop(n);
rx = spop();
rd = spop();
retfromi();
}
}
}
define_instruction(lck) {
int m = get_fixnum(*ip++);
int n; cki(sref(m)); ckx(sref(m+1));
n = (int)(sp-m-(r+VM_REGC));
hp_reserve(vmclobsz(n+2));
hp -= n; objcpy(hp, sp-n-m, n);
/* [0] adapter_code, [1] dynamic_state */
*--hp = cx__2Adynamic_2Dstate_2A;
*--hp = cx_continuation_2Dadapter_2Dcode;
ac = hend_vmclo(n+2);
gonexti();
}
define_instruction(lck0) {
int n; cki(sref(0)); ckx(sref(1));
n = (int)(sp-(r+VM_REGC));
hp_reserve(vmclobsz(n+2));
hp -= n; objcpy(hp, sp-n, n);
/* [0] adapter_code, [1] dynamic_state */
*--hp = cx__2Adynamic_2Dstate_2A;
*--hp = cx_continuation_2Dadapter_2Dcode;
ac = hend_vmclo(n+2);
gonexti();
}
define_instruction(wck) {
obj x = ac, t = spop(); ckx(t); ckx(x);
if (vmcloref(x, 0) != cx_continuation_2Dadapter_2Dcode)
failactype("continuation");
/* [0] adapter_code, [1] dynamic_state */
if (vmcloref(x, 1) == cx__2Adynamic_2Dstate_2A) {
/* restore cont stack and invoke t there */
int n = vmclolen(x) - 2;
assert((cxg_rend - cxg_regs - VM_REGC) > n);
sp = r + VM_REGC; /* stack is empty */
objcpy(sp, &vmcloref(x, 2), n);
sp += n; /* contains n elements now */
rd = t; rx = fixnum_obj(0);
ac = fixnum_obj(0);
callsubi();
} else {
/* have to arrange call of cont adapter */
spush(x);
spush(cx_callmv_2Dadapter_2Dclosure);
spush(fixnum_obj(0));
/* call the thunk as producer */
rd = t; rx = fixnum_obj(0);
ac = fixnum_obj(0);
callsubi();
}
}
define_instruction(wckr) {
obj x = ac, o = spop(); ckx(x);
if (vmcloref(x, 0) != cx_continuation_2Dadapter_2Dcode)
failactype("continuation");
/* [0] adapter_code, [1] dynamic_state */
if (vmcloref(x, 1) == cx__2Adynamic_2Dstate_2A) {
/* restore cont stack and return o there */
int n = vmclolen(x) - 2;
assert((cxg_rend - cxg_regs - VM_REGC) > n);
sp = r + VM_REGC; /* stack is empty */
objcpy(sp, &vmcloref(x, 2), n);
sp += n;
ac = o;
rx = spop();
rd = spop();
retfromi();
} else {
/* have to arrange call of cont adapter */
spush(o);
rd = x; rx = fixnum_obj(0);
ac = fixnum_obj(1);
callsubi();
}
}
define_instruction(rck) {
/* called with continuation as rd:
* in: ac:argc, args on stack, rd display is dys, saved stack */
if (vmcloref(rd, 1) != cx__2Adynamic_2Dstate_2A) {
/* need to run the rest of the code to unwind/rewind on the
* old stack; rck will be called again when done */
gonexti();
} else if (ac == fixnum_obj(1)) { /* easy, popular case */
ac = rd;
goi(wckr);
} else { /* multiple results case */
/* rd[0] adapter_code, rd[1] dynamic_state */
int c = get_fixnum(ac), n = vmclolen(rd) - 2, i;
obj *ks = &vmcloref(rd, 2), *ke = ks + n;
if (ke-ks > 3 && *--ke == fixnum_obj(0) && *--ke == cx_callmv_2Dadapter_2Dclosure) {
obj *sb = r + VM_REGC;
rd = *--ke; rx = fixnum_obj(0); n = ke - ks; /* cns */
/* arrange stack as follows: [ks..ke] [arg ...] */
assert((cxg_rend - cxg_regs - VM_REGC) > n + c);
if (c) objmove(sb+n, sp-c, c);
objcpy(sb, ks, n);
sp = sb+n+c; callsubi();
} else if (c == 0) { /* return unit (n = 0) */
spush(unit_obj());
ac = rd;
goi(wckr);
} else { /* return args as tuple (n > 1) */
hp_reserve(tuplebsz(c));
for (i = c-1; i >= 0; --i) *--hp = sref(i);
ac = hend_tuple(c);
sdrop(c);
spush(ac);
ac = rd;
goi(wckr);
}
}
}
define_instruction(dys) {
ac = cx__2Adynamic_2Dstate_2A;
gonexti();
}
define_instruction(setdys) {
cx__2Adynamic_2Dstate_2A = ac;
gonexti();
}
define_instruction(save) {
int dx = get_fixnum(*ip++);
spush(rd);
spush(fixnum_obj(ip + dx - &vector_ref(vmcloref(rd, 0), 0)));
gonexti();
}
define_instruction(push) { spush(ac); gonexti(); }
define_instruction(jdceq) {
obj v = *ip++, i = *ip++;
if (ac == v) {
rd = dref(get_fixnum(i));
rx = fixnum_obj(0);
callsubi();
}
gonexti();
}
define_instruction(jdcge) {
obj v = *ip++, i = *ip++;
if (ac >= v) { /* unsigned tagged fixnums can be compared as-is */
rd = dref(get_fixnum(i));
rx = fixnum_obj(0);
callsubi();
}
gonexti();
}
define_instruction(jdref) {
int i = get_fixnum(*ip++);
rd = dref(i);
rx = fixnum_obj(0);
callsubi();
}
define_instruction(call) {
int n = get_fixnum(*ip++);
ckx(ac); rd = ac; rx = fixnum_obj(0);
ac = fixnum_obj(n); /* argc */
callsubi();
}
define_instruction(scall) {
int m = get_fixnum(*ip++), n = get_fixnum(*ip++);
ckx(ac); rd = ac; rx = fixnum_obj(0);
ac = fixnum_obj(n); /* argc */
objmove_left(sp-n-m, sp-n, n);
sdrop(m);
callsubi();
}
define_instruction(return) {
rx = spop();
rd = spop();
retfromi();
}
define_instruction(sreturn) {
int n = get_fixnum(*ip++);
sdrop(n);
rx = spop();
rd = spop();
retfromi();
}
define_instruction(adrop) {
int n = get_fixnum(*ip++);
sdrop(n);
gonexti();
}
define_instruction(pop) {
ac = spop();
gonexti();
}
define_instruction(atest) {
obj no = *ip++;
if (unlikely(ac != no)) fail("argument count error on entry");
gonexti();
}
define_instruction(shrarg) {
int n = get_fixnum(*ip++), c = get_fixnum(ac), m = c-n;
/* rest arg ends up on top */
if (unlikely(m < 0)) {
fail("argument count error on entry (not enough arguments)");
} else if (unlikely(m == 0)) {
spush(null_obj());
} else {
obj l = null_obj();
hp_reserve(pairbsz()*m);
while (m > 0) {
*--hp = l; *--hp = sref(n + m - 1);
l = hend_pair();
--m;
}
objmove_left(sp-c, sp-n, n);
sdrop(c-n);
spush(l);
}
ac = fixnum_obj(n+1);
gonexti();
}
define_instruction(aerr) {
fail("argument count error on entry");
gonexti();
}
define_instruction(shlit) {
spush(ac);
ac = *ip++;
gonexti();
}
define_instruction(shi0) {
spush(ac);
ac = fixnum_obj(0);
gonexti();
}
/* type checks */
define_instruction(ckp) { ckp(ac); gonexti(); }
define_instruction(ckl) { ckl(ac); gonexti(); }
define_instruction(ckv) { ckv(ac); gonexti(); }
define_instruction(ckc) { ckc(ac); gonexti(); }
define_instruction(cks) { cks(ac); gonexti(); }
define_instruction(cki) { cki(ac); gonexti(); }
define_instruction(ckj) { ckj(ac); gonexti(); }
define_instruction(ckn) { ckn(ac); gonexti(); }
define_instruction(ckk) { ckk(ac); gonexti(); }
define_instruction(cky) { cky(ac); gonexti(); }
define_instruction(ckr) { ckr(ac); gonexti(); }
define_instruction(ckw) { ckw(ac); gonexti(); }
define_instruction(ckx) { ckx(ac); gonexti(); }
define_instruction(ckz) { ckz(ac); gonexti(); }
/* integrable instructions */
define_instruction(isq) {
obj x = ac, y = spop();
ac = bool_obj(x == y);
gonexti();
}
define_instruction(isv) {
obj x = ac, y = spop();
ac = bool_obj(iseqv(x,y));
gonexti();
}
define_instruction(ise) {
obj x = ac, y = spop();
ac = bool_obj(isequal(x,y));
gonexti();
}
define_instruction(unbox) {
ckz(ac);
ac = box_ref(ac);
gonexti();
}
define_instruction(setbox) {
ckz(ac);
box_ref(ac) = spop();
gonexti();
}
define_instruction(box) {
hp_reserve(boxbsz());
*--hp = ac;
ac = hend_box();
gonexti();
}
define_instruction(car) { ckp(ac); ac = pair_car(ac); gonexti(); }
define_instruction(cdr) { ckp(ac); ac = pair_cdr(ac); gonexti(); }
define_instruction(setcar) { ckp(ac); pair_car(ac) = spop(); gonexti(); }
define_instruction(setcdr) { ckp(ac); pair_cdr(ac) = spop(); gonexti(); }
define_instruction(caar) { ckp(ac); ac = pair_car(ac); ckp(ac); ac = pair_car(ac); gonexti(); }
define_instruction(cadr) { ckp(ac); ac = pair_cdr(ac); ckp(ac); ac = pair_car(ac); gonexti(); }
define_instruction(cdar) { ckp(ac); ac = pair_car(ac); ckp(ac); ac = pair_cdr(ac); gonexti(); }
define_instruction(cddr) { ckp(ac); ac = pair_cdr(ac); ckp(ac); ac = pair_cdr(ac); gonexti(); }
define_instruction(nullp) {
ac = bool_obj(is_null(ac));
gonexti();
}
define_instruction(pairp) {
ac = bool_obj(is_pair(ac));
gonexti();
}
define_instruction(cons) {
hp_reserve(pairbsz());
*--hp = spop(); /* cdr */
*--hp = ac; /* car */
ac = hend_pair();
gonexti();
}
define_instruction(listp) {
ac = bool_obj(is_list(ac));
gonexti();
}
define_instruction(list) {
int i, n = get_fixnum(*ip++);
hp_reserve(pairbsz()*n);
for (ac = null_obj(), i = n-1; i >= 0; --i) {
*--hp = ac; /* cdr */
*--hp = sref(i); /* car */
ac = hend_pair();
}
sdrop(n);
gonexti();
}
define_instruction(lmk) {
int i, n; obj v; ckk(ac);
n = get_fixnum(ac);
hp_reserve(pairbsz()*n); v = sref(0);
ac = null_obj();
for (i = 0; i < n; ++i) {
*--hp = ac; /* cdr */
*--hp = v; /* car */
ac = hend_pair();
}
sdrop(1);
gonexti();
}
define_instruction(llen) {
int n = 0;
while (is_pair(ac)) { ac = pair_cdr(ac); ++n; }
ac = fixnum_obj(n);
gonexti();
}
define_instruction(lget) {
obj x = spop(); int c;
ckk(x); c = get_fixnum(x);
while (c-- > 0) { ckp(ac); ac = pair_cdr(ac); }
ckp(ac); ac = pair_car(ac);
gonexti();
}
define_instruction(lput) {
obj x = spop(); int c;
ckk(x); c = get_fixnum(x);
while (c-- > 0) { ckp(ac); ac = pair_cdr(ac); }
ckp(ac); pair_car(ac) = spop();
gonexti();
}
define_instruction(memq) {
obj l = spop();
for (; is_pair(l); l = pair_cdr(l)) {
if (pair_car(l) == ac) { ac = l; gonexti(); }
}
ac = bool_obj(0);
gonexti();
}
define_instruction(memv) {
ac = ismemv(ac, spop()); /* FIXME: ckp() */
gonexti();
}
define_instruction(meme) {
ac = ismember(ac, spop()); /* FIXME: ckp() */
gonexti();
}
define_instruction(assq) {
obj l = spop();
for (; is_pair(l); l = pair_cdr(l)) {
obj p = pair_car(l); if (is_pair(p) && pair_car(p) == ac) { ac = p; gonexti(); }
}
ac = bool_obj(0);
gonexti();
}
define_instruction(assv) {
ac = isassv(ac, spop()); /* FIXME: ckp() */
gonexti();
}
define_instruction(asse) {
ac = isassoc(ac, spop()); /* FIXME: ckp() */
gonexti();
}
define_instruction(ltail) {
obj x = spop(); int c;
ckk(x); c = get_fixnum(x);
while (c-- > 0) { ckp(ac); ac = pair_cdr(ac); }
gonexti();
}
define_instruction(lpair) {
obj l = bool_obj(0);
while (is_pair(ac)) { l = ac; ac = pair_cdr(ac); }
ac = l;
gonexti();
}
define_instruction(lrev) {
obj l = ac, o = null_obj(); int n = 0;
while (is_pair(ac)) { ac = pair_cdr(ac); ++n; }
cku(ac); ac = l;
hp_reserve(pairbsz()*n);
for (; ac != null_obj(); ac = pair_cdr(ac)) {
*--hp = o; *--hp = pair_car(ac);
o = hend_pair();
}
ac = o;
gonexti();
}
define_instruction(lrevi) {
obj t, v = null_obj();
while (is_pair(ac)) t = pair_cdr(ac), pair_cdr(ac) = v, v = ac, ac = t;
ac = v;
gonexti();
}
define_instruction(circp) {
ac = bool_obj(is_circular(ac));
gonexti();
}
define_instruction(charp) {
ac = bool_obj(is_char(ac));
gonexti();
}
define_instruction(strp) {
ac = bool_obj(is_string(ac));
gonexti();
}
define_instruction(str) {
int i, n = get_fixnum(*ip++);
obj o = string_obj(allocstring(n, ' '));
unsigned char *s = (unsigned char *)stringchars(o);
for (i = 0; i < n; ++i) {
obj x = sref(i); ckc(x); s[i] = get_char(x);
}
sdrop(n); ac = o;
gonexti();
}
define_instruction(smk) {
int n, c; obj x = spop();
ckk(ac); ckc(x);
n = get_fixnum(ac), c = get_char(x);
ac = string_obj(allocstring(n, c));
gonexti();
}
define_instruction(slen) {
cks(ac);
ac = fixnum_obj(string_len(ac));
gonexti();
}
define_instruction(sget) {
obj x = spop(); int i;
cks(ac); ckk(x);
i = get_fixnum(x);
if (i >= string_len(ac)) failtype(x, "valid string index");
ac = char_obj(string_ref(ac, i));
gonexti();
}
define_instruction(sput) {
obj x = spop(), y = spop(); int i;
cks(ac); ckk(x); ckc(y);
i = get_fixnum(x);
if (i >= string_len(ac)) failtype(x, "valid string index");
string_ref(ac, i) = get_char(y);
gonexti();
}
define_instruction(scat) {
obj x = ac, y = spop(); int *d;
cks(x); cks(y);
d = stringcat(stringdata(x), stringdata(y));
ac = string_obj(d);
gonexti();
}
define_instruction(ssub) {
obj x = spop(), y = spop(); int is, ie, *d;
cks(ac); ckk(x); ckk(y);
is = get_fixnum(x), ie = get_fixnum(y);
if (is > ie) failtype(x, "valid start string index");
if (ie > string_len(ac)) failtype(y, "valid end string index");
d = substring(stringdata(ac), is, ie);
ac = string_obj(d);
gonexti();
}
define_instruction(spos) {
obj x = ac, y = spop(); char *s, *p;
ckc(x); cks(y);
s = stringchars(y), p = strchr(s, get_char(x));
ac = p ? fixnum_obj(p-s) : bool_obj(0);
gonexti();
}
define_instruction(supc) {
int *d; char *s; cks(ac);
d = dupstring(stringdata(ac));
for (s = sdatachars(d); *s; ++s) *s = toupper(*s);
ac = string_obj(d);
gonexti();
}
define_instruction(sdnc) {
int *d; char *s; cks(ac);
d = dupstring(stringdata(ac));
for (s = sdatachars(d); *s; ++s) *s = tolower(*s);
ac = string_obj(d);
gonexti();
}
define_instruction(sflc) {
int *d; char *s; cks(ac);
d = dupstring(stringdata(ac));
for (s = sdatachars(d); *s; ++s) *s = tolower(*s); /* stub */
ac = string_obj(d);
gonexti();
}
define_instruction(bvecp) {
ac = bool_obj(is_bytevector(ac));
gonexti();
}
define_instruction(bvec) {
int i, n = get_fixnum(*ip++);
obj o = bytevector_obj(allocbytevector(n));
unsigned char *s = (unsigned char *)bytevectorbytes(o);
for (i = 0; i < n; ++i) {
obj x = sref(i); ck8(x); s[i] = byte_from_obj(x);
}
sdrop(n); ac = o;
gonexti();
}
define_instruction(bmk) {
int n, b; obj x = spop();
ckk(ac); ck8(x);
n = get_fixnum(ac), b = byte_from_obj(x);
ac = bytevector_obj(makebytevector(n, b));
gonexti();
}
define_instruction(blen) {
ckb(ac);
ac = fixnum_obj(bytevector_len(ac));
gonexti();
}
define_instruction(bget) {
obj x = spop(); int i;
ckb(ac); ckk(x);
i = get_fixnum(x);
if (i >= bytevector_len(ac)) failtype(x, "valid bytevector index");
ac = fixnum_obj(bytevector_ref(ac, i));
gonexti();
}
define_instruction(bput) {
obj x = spop(), y = spop(); int i;
ckb(ac); ckk(x); ck8(y);
i = get_fixnum(x);
if (i >= bytevector_len(ac)) failtype(x, "valid bytevector index");
bytevector_ref(ac, i) = byte_from_obj(y);
gonexti();
}
define_instruction(bsub) {
obj x = spop(), y = spop(); int is, ie, *d;
ckb(ac); ckk(x); ckk(y);
is = get_fixnum(x), ie = get_fixnum(y);
if (is > ie) failtype(x, "valid start bytevector index");
if (ie > bytevector_len(ac)) failtype(y, "valid end bytevector index");
d = subbytevector(bytevectordata(ac), is, ie);
ac = bytevector_obj(d);
gonexti();
}
define_instruction(beq) {
obj x = ac, y = spop(); ckb(x); ckb(y);
ac = bool_obj(bytevectoreq(bytevectordata(x), bytevectordata(y)));
gonexti();
}
define_instruction(recp) {
obj x = ac, y = spop();
if (is_void(y)) {
ac = bool_obj(is_record(ac));
} else {
ac = bool_obj(is_record(ac) && record_rtd(ac) == y);
}
gonexti();
}
define_instruction(rmk) {
int i, n; obj v; ckk(sref(0));
n = get_fixnum(sref(0));
hp_reserve(recbsz(n)); v = sref(1);
for (i = 0; i < n; ++i) *--hp = v;
ac = hend_rec(ac, n);
sdrop(2);
gonexti();
}
define_instruction(rlen) {
cko(ac);
ac = fixnum_obj(record_len(ac));
gonexti();
}
define_instruction(rget) {
obj x = spop(); int i;
cko(ac); ckk(x);
i = get_fixnum(x);
if (i >= record_len(ac)) failtype(x, "valid record index");
ac = record_ref(ac, i);
gonexti();
}
define_instruction(rput) {
obj x = spop(), y = spop(); int i;
cko(ac); ckk(x);
i = get_fixnum(x);
if (i >= record_len(ac)) failtype(x, "valid record index");
record_ref(ac, i) = y;
gonexti();
}
define_instruction(rrtd) {
cko(ac);
ac = record_rtd(ac);
gonexti();
}
define_instruction(vecp) {
ac = bool_obj(is_vector(ac));
gonexti();
}
define_instruction(vec) {
int i, n = get_fixnum(*ip++);
hp_reserve(vecbsz(n));
for (i = n-1; i >= 0; --i) *--hp = sref(i);
ac = hend_vec(n);
sdrop(n);
gonexti();
}
define_instruction(vmk) {
int i, n; obj v; ckk(ac);
n = get_fixnum(ac);
hp_reserve(vecbsz(n)); v = sref(0);
for (i = 0; i < n; ++i) *--hp = v;
ac = hend_vec(n);
sdrop(1);
gonexti();
}
define_instruction(vlen) {
ckv(ac);
ac = fixnum_obj(vector_len(ac));
gonexti();
}
define_instruction(vget) {
obj x = spop(); int i;
ckv(ac); ckk(x);
i = get_fixnum(x);
if (i >= vector_len(ac)) failtype(x, "valid vector index");
ac = vector_ref(ac, i);
gonexti();
}
define_instruction(vput) {
obj x = spop(), y = spop(); int i;
ckv(ac); ckk(x);
i = get_fixnum(x);
if (i >= vector_len(ac)) failtype(x, "valid vector index");
vector_ref(ac, i) = y;
gonexti();
}
define_instruction(vcat) {
obj x = ac, y = sref(0); int n1, n2, n;
ckv(x); ckv(y);
n1 = vector_len(x), n2 = vector_len(y), n = n1 + n2;
hp_reserve(vecbsz(n));
/* NB: vector_ref fails to return pointer to empty vector's start */
hp -= n2; if (n2) objcpy(hp, &vector_ref(y, 0), n2);
hp -= n1; if (n1) objcpy(hp, &vector_ref(x, 0), n1);
ac = hend_vec(n);
sdrop(1);
gonexti();
}
define_instruction(vtol) {
obj l = null_obj(); int n;
ckv(ac); n = vector_len(ac);
hp_reserve(pairbsz()*n);
while (n > 0) {
*--hp = l; *--hp = vector_ref(ac, n-1);
l = hend_pair();
--n;
}
ac = l;
gonexti();
}
define_instruction(ltov) {
obj l = ac; int n = 0, i;
while (is_pair(l)) { l = pair_cdr(l); ++n; } cku(l);
hp_reserve(vecbsz(n));
for (l = ac, i = 0, hp -= n; i < n; ++i, l = pair_cdr(l)) hp[i] = pair_car(l);
ac = hend_vec(n);
gonexti();
}
define_instruction(ltob) {
obj l = ac, o; int n = 0, i; unsigned char *s;
while (is_pair(l)) { l = pair_cdr(l); ++n; } cku(l);
o = bytevector_obj(allocbytevector(n));
s = bytevectorbytes(o);
for (i = 0, l = ac; i < n; ++i, l = pair_cdr(l)) {
obj x = pair_car(l); ck8(x);
s[i] = get_byte(x);
}
ac = o;
gonexti();
}
define_instruction(stol) {
obj l = null_obj(); int n;
cks(ac); n = string_len(ac);
hp_reserve(pairbsz()*n);
while (n > 0) {
*--hp = l; *--hp = char_obj(string_ref(ac, n-1));
l = hend_pair();
--n;
}
ac = l;
gonexti();
}
define_instruction(ltos) {
obj l = ac; int n = 0, i, *d;
while (is_pair(l)) { l = pair_cdr(l); ++n; }
d = allocstring(n, ' ');
for (i = 0; i < n; ac = pair_cdr(ac), ++i)
sdatachars(d)[i] = get_char(pair_car(ac));
ac = string_obj(d);
gonexti();
}
define_instruction(ytos) {
cky(ac);
ac = string_obj(newstring(symbolname(get_symbol(ac))));
gonexti();
}
define_instruction(stoy) {
cks(ac);
ac = mksymbol(internsym(stringchars(ac)));
gonexti();
}
define_instruction(itos) {
char buf[35], *s = buf + sizeof(buf) - 1;
int neg = 0; long num, radix;
obj x = ac, y = spop(); cki(x); ckk(y);
num = get_fixnum(x), radix = get_fixnum(y);
if (num < 0) { neg = 1; num = -num; }
if (radix < 2 || radix > 10 + 'z' - 'a') failtype(y, "valid radix");
*s = 0;
do { int d = num % radix; *--s = d < 10 ? d + '0' : d - 10 + 'a'; }
while (num /= radix);
if (neg) *--s = '-';
ac = string_obj(newstring(s));
gonexti();
}
define_instruction(stoi) {
char *e, *s; long l, radix;
obj x = ac, y = spop(); cks(x); ckk(y);
s = stringchars(x); radix = get_fixnum(y);
if (radix < 2 || radix > 10 + 'z' - 'a') failtype(y, "valid radix");
if (s[0] == '#' && (s[1] == 'b' || s[1] == 'B')) s += 2, radix = 2;
else if (s[0] == '#' && (s[1] == 'o' || s[1] == 'O')) s += 2, radix = 8;
else if (s[0] == '#' && (s[1] == 'd' || s[1] == 'D')) s += 2, radix = 10;
else if (s[0] == '#' && (s[1] == 'x' || s[1] == 'X')) s += 2, radix = 16;
l = (errno = 0, strtol(s, &e, radix));
if (errno || l < FIXNUM_MIN || l > FIXNUM_MAX || e == s || *e) ac = bool_obj(0);
else ac = fixnum_obj(l);
gonexti();
}
define_instruction(ctoi) {
ckc(ac);
ac = fixnum_obj(get_char(ac));
gonexti();
}
define_instruction(itoc) {
cki(ac); /* TODO: range check? */
ac = char_obj(get_fixnum(ac));
gonexti();
}
define_instruction(jtos) {
char buf[30], *s; double d; ckj(ac);
d = get_flonum(ac); sprintf(buf, "%.15g", d);
for (s = buf; *s != 0; s++) if (strchr(".eE", *s)) break;
if (d != d) strcpy(buf, "+nan.0"); else if (d <= -HUGE_VAL) strcpy(buf, "-inf.0");
else if (d >= HUGE_VAL) strcpy(buf, "+inf.0"); else if (*s == 'E') *s = 'e';
else if (*s == 0) { *s++ = '.'; *s++ = '0'; *s = 0; }
ac = string_obj(newstring(buf));
gonexti();
}
define_instruction(stoj) {
char *e = "", *s; double d; cks(ac);
s = stringchars(ac); errno = 0;
if (*s != '+' && *s != '-') d = strtod(s, &e);
else if (strcmp_ci(s+1, "inf.0") == 0) d = (*s == '-' ? -HUGE_VAL : HUGE_VAL);
else if (strcmp_ci(s+1, "nan.0") == 0) d = HUGE_VAL - HUGE_VAL;
else d = strtod(s, &e);
if (errno || e == s || *e) ac = bool_obj(0);
else ac = flonum_obj(d);
gonexti();
}
define_instruction(ntos) {
if (is_fixnum(ac)) goi(itos);
if (unlikely(spop() != fixnum_obj(10))) fail("non-10 radix in flonum conversion");
goi(jtos);
}
define_instruction(ston) {
char *s; int radix; long l; double d;
obj x = ac, y = spop(); cks(x); ckk(y);
s = stringchars(x); radix = get_fixnum(y);
if (radix < 2 || radix > 10 + 'z' - 'a') failtype(y, "valid radix");
switch (strtofxfl(s, radix, &l, &d)) {
case 'e': ac = fixnum_obj(l); break;
case 'i': ac = flonum_obj(d); break;
default : ac = bool_obj(0); break;
}
gonexti();
}
define_instruction(not) {
ac = bool_obj(ac == 0);
gonexti();
}
define_instruction(izerop) {
cki(ac);
ac = bool_obj(ac == fixnum_obj(0));
gonexti();
}
define_instruction(iposp) {
cki(ac);
ac = bool_obj(get_fixnum(ac) > 0);
gonexti();
}
define_instruction(inegp) {
cki(ac);
ac = bool_obj(get_fixnum(ac) < 0);
gonexti();
}
define_instruction(ievnp) {
cki(ac);
ac = bool_obj((get_fixnum(ac) & 1) == 0);
gonexti();
}
define_instruction(ioddp) {
cki(ac);
ac = bool_obj((get_fixnum(ac) & 1) != 0);
gonexti();
}
define_instruction(iadd) {
obj x = ac, y = spop(); cki(x); cki(y);
ac = fixnum_obj(fxadd(get_fixnum(x), get_fixnum(y)));
gonexti();
}
define_instruction(isub) {
obj x = ac, y = spop(); cki(x); cki(y);
ac = fixnum_obj(fxsub(get_fixnum(x), get_fixnum(y)));
gonexti();
}
define_instruction(imul) {
obj x = ac, y = spop(); cki(x); cki(y);
ac = fixnum_obj(fxmul(get_fixnum(x), get_fixnum(y)));
gonexti();
}
define_instruction(iquo) {
obj x = ac, y = spop(); cki(x); cki(y);
if (y == fixnum_obj(0)) fail("division by zero");
ac = fixnum_obj(fxquo(get_fixnum(x), get_fixnum(y)));
gonexti();
}
define_instruction(irem) {
obj x = ac, y = spop(); cki(x); cki(y);
if (y == fixnum_obj(0)) fail("division by zero");
ac = fixnum_obj(fxrem(get_fixnum(x), get_fixnum(y)));
gonexti();
}
define_instruction(imin) {
obj x = ac, y = spop(); cki(x); cki(y);
ac = get_fixnum(x) < get_fixnum(y) ? x : y;
gonexti();
}
define_instruction(imax) {
obj x = ac, y = spop(); cki(x); cki(y);
ac = get_fixnum(x) > get_fixnum(y) ? x : y;
gonexti();
}
define_instruction(ineg) {
cki(ac);
ac = fixnum_obj(fxneg(get_fixnum(ac)));
gonexti();
}
define_instruction(iabs) {
cki(ac);
ac = fixnum_obj(fxabs(get_fixnum(ac)));
gonexti();
}
define_instruction(itoj) {
cki(ac);
ac = flonum_obj((double)get_fixnum(ac));
gonexti();
}
define_instruction(idiv) {
obj x = ac, y = spop(); cki(x); cki(y);
if (y == fixnum_obj(0)) fail("division by zero");
ac = fixnum_obj(fxdiv(get_fixnum(x), get_fixnum(y)));
gonexti();
}
define_instruction(imqu) {
obj x = ac, y = spop(); cki(x); cki(y);
if (y == fixnum_obj(0)) fail("division by zero");
ac = fixnum_obj(fxmqu(get_fixnum(x), get_fixnum(y)));
gonexti();
}
define_instruction(imlo) {
obj x = ac, y = spop(); cki(x); cki(y);
if (y == fixnum_obj(0)) fail("division by zero");
ac = fixnum_obj(fxmlo(get_fixnum(x), get_fixnum(y)));
gonexti();
}
define_instruction(ieuq) {
obj x = ac, y = spop(); cki(x); cki(y);
if (y == fixnum_obj(0)) fail("division by zero");
ac = fixnum_obj(fxeuq(get_fixnum(x), get_fixnum(y)));
gonexti();
}
define_instruction(ieur) {
obj x = ac, y = spop(); cki(x); cki(y);
if (y == fixnum_obj(0)) fail("division by zero");
ac = fixnum_obj(fxeur(get_fixnum(x), get_fixnum(y)));
gonexti();
}
define_instruction(igcd) {
obj x = ac, y = spop(); cki(x); cki(y);
ac = fixnum_obj(fxgcd(get_fixnum(x), get_fixnum(y)));
gonexti();
}
define_instruction(ipow) {
obj x = ac, y = spop(); cki(x); cki(y);
ac = fixnum_obj(fxpow(get_fixnum(x), get_fixnum(y)));
gonexti();
}
define_instruction(isqrt) {
cki(ac); /* TODO: check for negative */
ac = fixnum_obj(fxsqrt(get_fixnum(ac)));
gonexti();
}
define_instruction(inot) {
cki(ac);
ac = fixnum_obj(~get_fixnum(ac));
gonexti();
}
define_instruction(iand) {
obj x = ac, y = spop(); cki(x); cki(y);
ac = fixnum_obj(get_fixnum(x) & get_fixnum(y));
gonexti();
}
define_instruction(iior) {
obj x = ac, y = spop(); cki(x); cki(y);
ac = fixnum_obj(get_fixnum(x) | get_fixnum(y));
gonexti();
}
define_instruction(ixor) {
obj x = ac, y = spop(); cki(x); cki(y);
ac = fixnum_obj(get_fixnum(x) ^ get_fixnum(y));
gonexti();
}
define_instruction(iasl) {
obj x = ac, y = spop(); cki(x); cki(y);
ac = fixnum_obj(fxasl(get_fixnum(x), get_fixnum(y)));
gonexti();
}
define_instruction(iasr) {
obj x = ac, y = spop(); cki(x); cki(y);
ac = fixnum_obj(fxasr(get_fixnum(x), get_fixnum(y)));
gonexti();
}
define_instruction(ilt) {
obj x = ac, y = spop(); cki(x); cki(y);
ac = bool_obj(get_fixnum(x) < get_fixnum(y));
gonexti();
}
define_instruction(igt) {
obj x = ac, y = spop(); cki(x); cki(y);
ac = bool_obj(get_fixnum(x) > get_fixnum(y));
gonexti();
}
define_instruction(ile) {
obj x = ac, y = spop(); cki(x); cki(y);
ac = bool_obj(get_fixnum(x) <= get_fixnum(y));
gonexti();
}
define_instruction(ige) {
obj x = ac, y = spop(); cki(x); cki(y);
ac = bool_obj(get_fixnum(x) >= get_fixnum(y));
gonexti();
}
define_instruction(ieq) {
obj x = ac, y = spop(); cki(x); cki(y);
ac = bool_obj(x == y);
gonexti();
}
define_instruction(ine) {
obj x = ac, y = spop(); cki(x); cki(y);
ac = bool_obj(x != y);
gonexti();
}
define_instruction(jzerop) {
ckj(ac);
ac = bool_obj(get_flonum(ac) == 0.0);
gonexti();
}
define_instruction(jposp) {
ckj(ac);
ac = bool_obj(get_flonum(ac) > 0.0);
gonexti();
}
define_instruction(jnegp) {
ckj(ac);
ac = bool_obj(get_flonum(ac) < 0.0);
gonexti();
}
define_instruction(jevnp) {
double f; ckj(ac);
f = get_flonum(ac);
ac = bool_obj(flisint(f / 2.0));
gonexti();
}
define_instruction(joddp) {
double f; ckj(ac);
f = get_flonum(ac);
ac = bool_obj(flisint((f + 1.0) / 2.0));
gonexti();
}
define_instruction(jintp) {
double f; ckj(ac);
f = get_flonum(ac);
ac = bool_obj(f > -HUGE_VAL && f < HUGE_VAL && f == floor(f));
gonexti();
}
define_instruction(jnanp) {
double f; ckj(ac);
f = get_flonum(ac);
ac = bool_obj(f != f);
gonexti();
}
define_instruction(jfinp) {
double f; ckj(ac);
f = get_flonum(ac);
ac = bool_obj(f > -HUGE_VAL && f < HUGE_VAL);
gonexti();
}
define_instruction(jinfp) {
double f; ckj(ac);
f = get_flonum(ac);
ac = bool_obj(f <= -HUGE_VAL || f >= HUGE_VAL);
gonexti();
}
define_instruction(jadd) {
obj x = ac, y = spop(); ckj(x); ckj(y);
ac = flonum_obj(get_flonum(x) + get_flonum(y));
gonexti();
}
define_instruction(jsub) {
obj x = ac, y = spop(); ckj(x); ckj(y);
ac = flonum_obj(get_flonum(x) - get_flonum(y));
gonexti();
}
define_instruction(jmul) {
obj x = ac, y = spop(); ckj(x); ckj(y);
ac = flonum_obj(get_flonum(x) * get_flonum(y));
gonexti();
}
define_instruction(jdiv) {
obj x = ac, y = spop(); ckj(x); ckj(y);
ac = flonum_obj(get_flonum(x) / get_flonum(y));
gonexti();
}
define_instruction(jlt) {
obj x = ac, y = spop(); ckj(x); ckj(y);
ac = bool_obj(get_flonum(x) < get_flonum(y));
gonexti();
}
define_instruction(jgt) {
obj x = ac, y = spop(); ckj(x); ckj(y);
ac = bool_obj(get_flonum(x) > get_flonum(y));
gonexti();
}
define_instruction(jle) {
obj x = ac, y = spop(); ckj(x); ckj(y);
ac = bool_obj(get_flonum(x) <= get_flonum(y));
gonexti();
}
define_instruction(jge) {
obj x = ac, y = spop(); ckj(x); ckj(y);
ac = bool_obj(get_flonum(x) >= get_flonum(y));
gonexti();
}
define_instruction(jeq) {
obj x = ac, y = spop(); ckj(x); ckj(y);
ac = bool_obj(get_flonum(x) == get_flonum(y));
gonexti();
}
define_instruction(jne) {
obj x = ac, y = spop(); ckj(x); ckj(y);
ac = bool_obj(get_flonum(x) != get_flonum(y));
gonexti();
}
define_instruction(jmin) {
obj x = ac, y = spop(); ckj(x); ckj(y);
ac = get_flonum(x) < get_flonum(y) ? x : y;
gonexti();
}
define_instruction(jmax) {
obj x = ac, y = spop(); ckj(x); ckj(y);
ac = get_flonum(x) > get_flonum(y) ? x : y;
gonexti();
}
define_instruction(jneg) {
ckj(ac);
ac = flonum_obj(-get_flonum(ac));
gonexti();
}
define_instruction(jabs) {
ckj(ac);
ac = flonum_obj(fabs(get_flonum(ac)));
gonexti();
}
define_instruction(jgcd) {
obj x = ac, y = spop(); ckj(x); ckj(y);
ac = flonum_obj(flgcd(get_flonum(x), get_flonum(y)));
gonexti();
}
define_instruction(jpow) {
obj x = ac, y = spop(); ckj(x); ckj(y);
ac = flonum_obj(pow(get_flonum(x), get_flonum(y)));
gonexti();
}
define_instruction(jsqrt) {
ckj(ac);
ac = flonum_obj(sqrt(get_flonum(ac)));
gonexti();
}
define_instruction(jtoi) {
ckj(ac);
ac = fixnum_obj(fxflo(get_flonum(ac)));
gonexti();
}
define_instruction(jquo) {
obj x = ac, y = spop(); double n, d, i;
ckj(x); ckj(y);
n = get_flonum(x), d = get_flonum(y); modf(n/d, &i);
ac = flonum_obj(i);
gonexti();
}
define_instruction(jrem) {
/* NB: we keep sign: (flremainder -10.0 2.0) => -0.0 */
obj x = ac, y = spop(); ckj(x); ckj(y);
ac = flonum_obj(fmod(get_flonum(x), get_flonum(y)));
gonexti();
}
define_instruction(jmqu) {
obj x = ac, y = spop(); ckj(x); ckj(y);
ac = flonum_obj(flmqu(get_flonum(x), get_flonum(y)));
gonexti();
}
define_instruction(jmlo) {
obj x = ac, y = spop(); ckj(x); ckj(y);
ac = flonum_obj(flmlo(get_flonum(x), get_flonum(y)));
gonexti();
}
define_instruction(jfloor) {
ckj(ac);
ac = flonum_obj(floor(get_flonum(ac)));
gonexti();
}
define_instruction(jceil) {
ckj(ac);
ac = flonum_obj(ceil(get_flonum(ac)));
gonexti();
}
define_instruction(jtrunc) {
double i; ckj(ac);
modf(get_flonum(ac), &i);
ac = flonum_obj(i);
gonexti();
}
define_instruction(jround) {
ckj(ac);
ac = flonum_obj(flround(get_flonum(ac)));
gonexti();
}
define_instruction(jexp) {
ckj(ac);
ac = flonum_obj(exp(get_flonum(ac)));
gonexti();
}
define_instruction(jlog) {
obj x = ac, y = spop(); ckj(ac);
if (likely(!y)) {
ac = flonum_obj(log(get_flonum(ac)));
} else {
double b; ckj(y); b = get_flonum(y);
if (likely(b == 10.0)) ac = flonum_obj(log10(get_flonum(ac)));
else ac = flonum_obj(log(get_flonum(ac))/log(b));
}
gonexti();
}
define_instruction(jsin) {
ckj(ac);
ac = flonum_obj(sin(get_flonum(ac)));
gonexti();
}
define_instruction(jcos) {
ckj(ac);
ac = flonum_obj(cos(get_flonum(ac)));
gonexti();
}
define_instruction(jtan) {
ckj(ac);
ac = flonum_obj(tan(get_flonum(ac)));
gonexti();
}
define_instruction(jasin) {
ckj(ac);
ac = flonum_obj(asin(get_flonum(ac)));
gonexti();
}
define_instruction(jacos) {
ckj(ac);
ac = flonum_obj(acos(get_flonum(ac)));
gonexti();
}
define_instruction(jatan) {
obj x = ac, y = spop(); ckj(ac);
if (likely(!y)) {
ac = flonum_obj(atan(get_flonum(x)));
} else {
ckj(y);
ac = flonum_obj(atan2(get_flonum(x), get_flonum(y)));
}
gonexti();
}
define_instruction(zerop) {
obj x = ac;
if (likely(is_fixnum(x))) {
ac = bool_obj(x == fixnum_obj(0));
} else if (likely(is_flonum(x))) {
ac = bool_obj(get_flonum(x) == 0.0);
} else failactype("number");
gonexti();
}
define_instruction(posp) {
if (likely(is_fixnum(ac))) ac = bool_obj(get_fixnum(ac) > 0);
else if (likely(is_flonum(ac))) ac = bool_obj(get_flonum(ac) > 0.0);
else failactype("number");
gonexti();
}
define_instruction(negp) {
if (likely(is_fixnum(ac))) ac = bool_obj(get_fixnum(ac) < 0);
else if (likely(is_flonum(ac))) ac = bool_obj(get_flonum(ac) < 0.0);
else failactype("number");
gonexti();
}
define_instruction(add) {
obj x = ac, y = spop();
if (likely(are_fixnums(x, y))) {
long lx = get_fixnum(x), ly = get_fixnum(y);
long long llz = (long long)lx + (long long)ly;
if (likely(llz >= FIXNUM_MIN && llz <= FIXNUM_MAX)) ac = fixnum_obj((long)llz);
else ac = flonum_obj((double)lx + (double)ly);
} else {
double dx, dy;
if (likely(is_flonum(x))) dx = get_flonum(x);
else if (likely(is_fixnum(x))) dx = (double)get_fixnum(x);
else failtype(x, "number");
if (likely(is_flonum(y))) dy = get_flonum(y);
else if (likely(is_fixnum(y))) dy = (double)get_fixnum(y);
else failtype(y, "number");
ac = flonum_obj(dx + dy);
}
gonexti();
}
define_instruction(sub) {
obj x = ac, y = spop();
if (likely(are_fixnums(x, y))) {
long lx = get_fixnum(x), ly = get_fixnum(y);
long long llz = (long long)lx - (long long)ly;
if (likely(llz >= FIXNUM_MIN && llz <= FIXNUM_MAX)) ac = fixnum_obj((long)llz);
else ac = flonum_obj((double)lx - (double)ly);
} else {
double dx, dy;
if (likely(is_flonum(x))) dx = get_flonum(x);
else if (likely(is_fixnum(x))) dx = (double)get_fixnum(x);
else failtype(x, "number");
if (likely(is_flonum(y))) dy = get_flonum(y);
else if (likely(is_fixnum(y))) dy = (double)get_fixnum(y);
else failtype(y, "number");
ac = flonum_obj(dx - dy);
}
gonexti();
}
define_instruction(mul) {
obj x = ac, y = spop();
if (likely(are_fixnums(x, y))) {
long lx = get_fixnum(x), ly = get_fixnum(y);
long long llz = (long long)lx * (long long)ly;
if (likely(llz >= FIXNUM_MIN && llz <= FIXNUM_MAX)) ac = fixnum_obj((long)llz);
else ac = flonum_obj((double)lx * (double)ly);
} else {
double dx, dy;
if (likely(is_flonum(x))) dx = get_flonum(x);
else if (likely(is_fixnum(x))) dx = (double)get_fixnum(x);
else failtype(x, "number");
if (likely(is_flonum(y))) dy = get_flonum(y);
else if (likely(is_fixnum(y))) dy = (double)get_fixnum(y);
else failtype(y, "number");
ac = flonum_obj(dx * dy);
}
gonexti();
}
define_instruction(div) {
obj x = ac, y = spop();
if (likely(are_fixnums(x, y))) {
long lx, ly; long long llz, llr;
if (unlikely(y == fixnum_obj(0))) fail("division by zero");
lx = get_fixnum(x), ly = get_fixnum(y);
llz = (long long)lx / (long long)ly, llr = (long long)lx % (long long)ly;
if (likely(!llr && llz >= FIXNUM_MIN && llz <= FIXNUM_MAX)) ac = fixnum_obj((long)llz);
else ac = flonum_obj((double)lx / (double)ly);
} else {
double dx, dy;
if (likely(is_flonum(x))) dx = get_flonum(x);
else if (likely(is_fixnum(x))) dx = (double)get_fixnum(x);
else failtype(x, "number");
if (likely(is_flonum(y))) dy = get_flonum(y);
else if (likely(is_fixnum(y))) dy = (double)get_fixnum(y);
else failtype(y, "number");
ac = flonum_obj(dx / dy);
}
gonexti();
}
define_instruction(quo) {
obj x = ac, y = spop();
if (likely(are_fixnums(x, y))) {
if (unlikely(y == fixnum_obj(0))) fail("division by zero");
ac = fixnum_obj(fxquo(get_fixnum(x), get_fixnum(y)));
} else {
double dx, dy, dz;
if (likely(is_flonum(x) && flisint(dx = get_flonum(x)))) /* ok */;
else if (likely(is_fixnum(x))) dx = (double)get_fixnum(x);
else failtype(x, "integer");
if (likely(is_flonum(y) && flisint(dy = get_flonum(y)))) /* ok */;
else if (likely(is_fixnum(y))) dy = (double)get_fixnum(y);
else failtype(y, "integer");
modf(dx / dy, &dz);
ac = flonum_obj(dz);
}
gonexti();
}
define_instruction(rem) {
obj x = ac, y = spop();
if (likely(are_fixnums(x, y))) {
if (unlikely(y == fixnum_obj(0))) fail("division by zero");
ac = fixnum_obj(fxrem(get_fixnum(x), get_fixnum(y)));
} else {
double dx, dy, dz;
if (likely(is_flonum(x) && flisint(dx = get_flonum(x)))) /* ok */;
else if (likely(is_fixnum(x))) dx = (double)get_fixnum(x);
else failtype(x, "integer");
if (likely(is_flonum(y) && flisint(dy = get_flonum(y)))) /* ok */;
else if (likely(is_fixnum(y))) dy = (double)get_fixnum(y);
else failtype(y, "integer");
dz = fmod(dx, dy);
/* keep zero positive: (remainder -10.0 2.0) => 0.0, not -0.0 */
ac = flonum_obj((dz == 0.0) ? 0.0 : dz);
}
gonexti();
}
define_instruction(mqu) {
obj x = ac, y = spop();
if (likely(are_fixnums(x, y))) {
if (unlikely(y == fixnum_obj(0))) fail("division by zero");
ac = fixnum_obj(fxmqu(get_fixnum(x), get_fixnum(y)));
} else {
double dx, dy;
if (likely(is_flonum(x))) dx = get_flonum(x);
else if (likely(is_fixnum(x))) dx = (double)get_fixnum(x);
else failtype(x, "number");
if (likely(is_flonum(y))) dy = get_flonum(y);
else if (likely(is_fixnum(y))) dy = (double)get_fixnum(y);
else failtype(y, "number");
ac = flonum_obj(flmqu(dx, dy));
}
gonexti();
}
define_instruction(mlo) {
obj x = ac, y = spop();
if (likely(are_fixnums(x, y))) {
if (unlikely(y == fixnum_obj(0))) fail("division by zero");
ac = fixnum_obj(fxmlo(get_fixnum(x), get_fixnum(y)));
} else {
double dx, dy;
if (likely(is_flonum(x))) dx = get_flonum(x);
else if (likely(is_fixnum(x))) dx = (double)get_fixnum(x);
else failtype(x, "number");
if (likely(is_flonum(y))) dy = get_flonum(y);
else if (likely(is_fixnum(y))) dy = (double)get_fixnum(y);
else failtype(y, "number");
ac = flonum_obj(flmlo(dx, dy));
}
gonexti();
}
define_instruction(lt) {
obj x = ac, y = spop();
if (likely(are_fixnums(x, y))) {
ac = bool_obj(get_fixnum(x) < get_fixnum(y));
} else {
double dx, dy;
if (likely(is_flonum(x))) dx = get_flonum(x);
else if (likely(is_fixnum(x))) dx = (double)get_fixnum(x);
else failtype(x, "number");
if (likely(is_flonum(y))) dy = get_flonum(y);
else if (likely(is_fixnum(y))) dy = (double)get_fixnum(y);
else failtype(y, "number");
ac = bool_obj(dx < dy);
}
gonexti();
}
define_instruction(gt) {
obj x = ac, y = spop();
if (likely(are_fixnums(x, y))) {
ac = bool_obj(get_fixnum(x) > get_fixnum(y));
} else {
double dx, dy;
if (likely(is_flonum(x))) dx = get_flonum(x);
else if (likely(is_fixnum(x))) dx = (double)get_fixnum(x);
else failtype(x, "number");
if (likely(is_flonum(y))) dy = get_flonum(y);
else if (likely(is_fixnum(y))) dy = (double)get_fixnum(y);
else failtype(y, "number");
ac = bool_obj(dx > dy);
}
gonexti();
}
define_instruction(le) {
obj x = ac, y = spop();
if (likely(are_fixnums(x, y))) {
ac = bool_obj(get_fixnum(x) <= get_fixnum(y));
} else {
double dx, dy;
if (likely(is_flonum(x))) dx = get_flonum(x);
else if (likely(is_fixnum(x))) dx = (double)get_fixnum(x);
else failtype(x, "number");
if (likely(is_flonum(y))) dy = get_flonum(y);
else if (likely(is_fixnum(y))) dy = (double)get_fixnum(y);
else failtype(y, "number");
ac = bool_obj(dx <= dy);
}
gonexti();
}
define_instruction(ge) {
obj x = ac, y = spop();
if (likely(are_fixnums(x, y))) {
ac = bool_obj(get_fixnum(x) >= get_fixnum(y));
} else {
double dx, dy;
if (likely(is_flonum(x))) dx = get_flonum(x);
else if (likely(is_fixnum(x))) dx = (double)get_fixnum(x);
else failtype(x, "number");
if (likely(is_flonum(y))) dy = get_flonum(y);
else if (likely(is_fixnum(y))) dy = (double)get_fixnum(y);
else failtype(y, "number");
ac = bool_obj(dx >= dy);
}
gonexti();
}
define_instruction(eq) {
obj x = ac, y = spop();
if (likely(are_fixnums(x, y))) {
ac = bool_obj(x == y);
} else if (is_flonum(x) || is_flonum(y)) {
double dx, dy;
if (likely(is_flonum(x))) dx = get_flonum(x);
else if (likely(is_fixnum(x))) dx = (double)get_fixnum(x);
else failtype(x, "number");
if (likely(is_flonum(y))) dy = get_flonum(y);
else if (likely(is_fixnum(y))) dy = (double)get_fixnum(y);
else failtype(y, "number");
ac = bool_obj(dx == dy);
} else ac = bool_obj(0);
gonexti();
}
define_instruction(ne) {
obj x = ac, y = spop();
if (likely(are_fixnums(x, y))) {
ac = bool_obj(x != y);
} else if (is_flonum(x) || is_flonum(y)) {
double dx, dy;
if (likely(is_flonum(x))) dx = get_flonum(x);
else if (likely(is_fixnum(x))) dx = (double)get_fixnum(x);
else failtype(x, "number");
if (likely(is_flonum(y))) dy = get_flonum(y);
else if (likely(is_fixnum(y))) dy = (double)get_fixnum(y);
else failtype(y, "number");
ac = bool_obj(dx != dy);
} else ac = bool_obj(1);
gonexti();
}
define_instruction(min) {
obj x = ac, y = spop();
if (likely(are_fixnums(x, y))) {
ac = (get_fixnum(x) < get_fixnum(y)) ? x : y;
} else {
double dx, dy;
if (likely(is_flonum(x))) dx = get_flonum(x);
else if (likely(is_fixnum(x))) dx = (double)get_fixnum(x);
else failtype(x, "number");
if (likely(is_flonum(y))) dy = get_flonum(y);
else if (likely(is_fixnum(y))) dy = (double)get_fixnum(y);
else failtype(y, "number");
ac = dx < dy ? flonum_obj(dx) : flonum_obj(dy);
}
gonexti();
}
define_instruction(max) {
obj x = ac, y = spop();
if (likely(are_fixnums(x, y))) {
ac = (get_fixnum(x) > get_fixnum(y)) ? x : y;
} else {
double dx, dy;
if (likely(is_flonum(x))) dx = get_flonum(x);
else if (likely(is_fixnum(x))) dx = (double)get_fixnum(x);
else failtype(x, "number");
if (likely(is_flonum(y))) dy = get_flonum(y);
else if (likely(is_fixnum(y))) dy = (double)get_fixnum(y);
else failtype(y, "number");
ac = dx > dy ? flonum_obj(dx) : flonum_obj(dy);
}
gonexti();
}
define_instruction(gcd) {
obj x = ac, y = spop();
if (likely(are_fixnums(x, y))) {
ac = fixnum_obj(fxgcd(get_fixnum(x), get_fixnum(y)));
} else {
double dx, dy;
if (likely(is_flonum(x))) dx = get_flonum(x);
else if (likely(is_fixnum(x))) dx = (double)get_fixnum(x);
else failtype(x, "number");
if (likely(is_flonum(y))) dy = get_flonum(y);
else if (likely(is_fixnum(y))) dy = (double)get_fixnum(y);
else failtype(y, "number");
ac = flonum_obj(flgcd(dx, dy));
}
gonexti();
}
define_instruction(pow) {
obj x = ac, y = spop();
if (likely(are_fixnums(x, y))) {
/* fixme: this will either overflow, or fail on negative y */
ac = fixnum_obj(fxpow(get_fixnum(x), get_fixnum(y)));
} else {
double dx, dy;
if (likely(is_flonum(x))) dx = get_flonum(x);
else if (likely(is_fixnum(x))) dx = (double)get_fixnum(x);
else failtype(x, "number");
if (likely(is_flonum(y))) dy = get_flonum(y);
else if (likely(is_fixnum(y))) dy = (double)get_fixnum(y);
else failtype(y, "number");
ac = flonum_obj(pow(dx, dy));
}
gonexti();
}
define_instruction(sqrt) {
if (likely(is_flonum(ac))) {
ac = flonum_obj(sqrt(get_flonum(ac)));
} else if (likely(is_fixnum(ac))) {
long x = get_fixnum(ac), y;
if (x < 0) ac = flonum_obj((HUGE_VAL - HUGE_VAL));
else if (y = fxsqrt(x), y*y == x) ac = fixnum_obj(y);
else ac = flonum_obj(sqrt((double)x));
} else failactype("number");
gonexti();
}
define_instruction(exp) {
double x;
if (unlikely(is_fixnum(ac))) x = (double)get_fixnum(ac);
else if (likely(is_flonum(ac))) x = get_flonum(ac);
else failactype("number");
ac = flonum_obj(exp(x));
gonexti();
}
define_instruction(log) {
double x; obj y = spop();
if (unlikely(is_fixnum(ac))) x = (double)get_fixnum(ac);
else if (likely(is_flonum(ac))) x = get_flonum(ac);
else failactype("number");
if (likely(!y)) {
ac = flonum_obj(log(x));
} else if (likely(y == fixnum_obj(10))) {
ac = flonum_obj(log10(x));
} else {
double b;
if (unlikely(is_fixnum(y))) b = (double)get_fixnum(y);
else if (likely(is_flonum(y))) b = get_flonum(y);
else failtype(y, "number");
if (likely(b == 10.0)) ac = flonum_obj(log10(x));
else ac = flonum_obj(log(x)/log(b));
}
gonexti();
}
define_instruction(sin) {
double x;
if (unlikely(is_fixnum(ac))) {
x = (double)get_fixnum(ac);
} else if (likely(is_flonum(ac))) {
x = get_flonum(ac);
} else failactype("number");
ac = flonum_obj(sin(x));
gonexti();
}
define_instruction(cos) {
double x;
if (unlikely(is_fixnum(ac))) {
x = (double)get_fixnum(ac);
} else if (likely(is_flonum(ac))) {
x = get_flonum(ac);
} else failactype("number");
ac = flonum_obj(cos(x));
gonexti();
}
define_instruction(tan) {
double x;
if (unlikely(is_fixnum(ac))) {
x = (double)get_fixnum(ac);
} else if (likely(is_flonum(ac))) {
x = get_flonum(ac);
} else failactype("number");
ac = flonum_obj(tan(x));
gonexti();
}
define_instruction(asin) {
double x;
if (unlikely(is_fixnum(ac))) {
x = (double)get_fixnum(ac);
} else if (likely(is_flonum(ac))) {
x = get_flonum(ac);
} else failactype("number");
ac = flonum_obj(asin(x));
gonexti();
}
define_instruction(acos) {
double x;
if (unlikely(is_fixnum(ac))) {
x = (double)get_fixnum(ac);
} else if (likely(is_flonum(ac))) {
x = get_flonum(ac);
} else failactype("number");
ac = flonum_obj(acos(x));
gonexti();
}
define_instruction(atan) {
double x; obj y = spop();
if (unlikely(is_fixnum(ac))) x = (double)get_fixnum(ac);
else if (likely(is_flonum(ac))) x = get_flonum(ac);
else failactype("number");
if (likely(!y)) {
ac = flonum_obj(atan(x));
} else {
double b;
if (unlikely(is_fixnum(y))) b = (double)get_fixnum(y);
else if (likely(is_flonum(y))) b = get_flonum(y);
else failtype(y, "number");
ac = flonum_obj(atan2(x, b));
}
gonexti();
}
define_instruction(neg) {
if (likely(is_fixnum(ac))) {
ac = fixnum_obj(-get_fixnum(ac));
} else if (likely(is_flonum(ac))) {
ac = flonum_obj(-get_flonum(ac));
} else failactype("number");
gonexti();
}
define_instruction(abs) {
if (likely(is_fixnum(ac))) {
ac = fixnum_obj(fxabs(get_fixnum(ac)));
} else if (likely(is_flonum(ac))) {
ac = flonum_obj(fabs(get_flonum(ac)));
} else failactype("number");
gonexti();
}
define_instruction(floor) {
if (likely(is_flonum(ac))) {
ac = flonum_obj(floor(get_flonum(ac)));
} else if (unlikely(!is_fixnum(ac))) {
failactype("number");
}
gonexti();
}
define_instruction(ceil) {
if (likely(is_flonum(ac))) {
ac = flonum_obj(ceil(get_flonum(ac)));
} else if (unlikely(!is_fixnum(ac))) {
failactype("number");
}
gonexti();
}
define_instruction(trunc) {
if (likely(is_flonum(ac))) {
double x = get_flonum(ac);
double i; modf(x, &i);
ac = flonum_obj(i);
} else if (unlikely(!is_fixnum(ac))) {
failactype("number");
}
gonexti();
}
define_instruction(round) {
if (likely(is_flonum(ac))) {
ac = flonum_obj(flround(get_flonum(ac)));
} else if (unlikely(!is_fixnum(ac))) {
failactype("number");
}
gonexti();
}
define_instruction(nump) {
ac = bool_obj(is_fixnum(ac) || is_flonum(ac));
gonexti();
}
define_instruction(fixp) {
ac = bool_obj(is_fixnum(ac));
gonexti();
}
define_instruction(flop) {
ac = bool_obj(is_flonum(ac));
gonexti();
}
define_instruction(intp) {
if (likely(is_fixnum(ac))) {
ac = bool_obj(1);
} else { /* accepts any object! */
ac = bool_obj(is_flonum(ac) && flisint(get_flonum(ac)));
}
gonexti();
}
define_instruction(ratp) {
if (likely(is_fixnum(ac))) {
ac = bool_obj(1);
} else if (likely(is_flonum(ac))) {
double f = get_flonum(ac);
ac = bool_obj(f > -HUGE_VAL && f < HUGE_VAL);
} else {
ac = bool_obj(0);
}
gonexti();
}
define_instruction(nanp) {
if (unlikely(is_fixnum(ac))) {
ac = bool_obj(0);
} else if (likely(is_flonum(ac))) {
double f = get_flonum(ac);
ac = bool_obj(f != f);
} else failactype("number");
gonexti();
}
define_instruction(finp) {
if (unlikely(is_fixnum(ac))) {
ac = bool_obj(1);
} else if (likely(is_flonum(ac))) {
double f = get_flonum(ac);
ac = bool_obj(f > -HUGE_VAL && f < HUGE_VAL);
} else failactype("number");
gonexti();
}
define_instruction(infp) {
if (unlikely(is_fixnum(ac))) {
ac = bool_obj(0);
} else if (likely(is_flonum(ac))) {
double f = get_flonum(ac);
ac = bool_obj(f <= -HUGE_VAL || f >= HUGE_VAL);
} else failactype("number");
gonexti();
}
define_instruction(evnp) {
if (likely(is_fixnum(ac))) {
ac = bool_obj((get_fixnum(ac) & 1) == 0);
} else if (likely(is_flonum(ac))) {
double f = get_flonum(ac);
ac = bool_obj(flisint(f / 2.0));
} else failactype("number");
gonexti();
}
define_instruction(oddp) {
if (likely(is_fixnum(ac))) {
ac = bool_obj((get_fixnum(ac) & 1) != 0);
} else if (likely(is_flonum(ac))) {
double f = get_flonum(ac);
ac = bool_obj(flisint((f + 1.0) / 2.0));
} else failactype("number");
gonexti();
}
define_instruction(ntoi) {
if (likely(is_flonum(ac))) ac = fixnum_obj(fxflo(get_flonum(ac)));
else if (likely(is_fixnum(ac))) /* keep ac as-is */ ;
else failactype("number");
gonexti();
}
define_instruction(ntoj) {
if (likely(is_fixnum(ac))) ac = flonum_obj((flonum_t)get_fixnum(ac));
else if (likely(is_flonum(ac))) /* keep ac as-is */ ;
else failactype("number");
gonexti();
}
define_instruction(lcat) {
obj t, l, *p, *d; int c;
for (l = ac, c = 0; is_pair(l); l = pair_cdr(l)) ++c;
hp_reserve(pairbsz()*c);
p = --sp; t = *p; /* pop & take addr */
for (l = ac; is_pair(l); l = pair_cdr(l)) {
*--hp = t; d = hp; *--hp = pair_car(l);
*p = hend_pair(); p = d;
}
ac = *sp;
gonexti();
}
define_instruction(lcpy) {
obj t, l, *p, *d; int c;
for (l = ac, c = 0; is_pair(l); l = pair_cdr(l)) ++c;
hp_reserve(pairbsz()*c);
p = sp; *p = t = l; /* tail of last pair */
for (l = ac; is_pair(l); l = pair_cdr(l)) {
*--hp = t; d = hp; *--hp = pair_car(l);
*p = hend_pair(); p = d;
}
ac = *sp;
gonexti();
}
define_instruction(ccmp) {
obj x = ac, y = spop(); int cmp; ckc(x); ckc(y);
cmp = get_char(x) - get_char(y);
ac = fixnum_obj(cmp);
gonexti();
}
define_instruction(ceq) {
obj x = ac, y = spop(); ckc(x); ckc(y);
ac = bool_obj(get_char(x) == get_char(y));
gonexti();
}
define_instruction(clt) {
obj x = ac, y = spop(); ckc(x); ckc(y);
ac = bool_obj(get_char(x) < get_char(y));
gonexti();
}
define_instruction(cgt) {
obj x = ac, y = spop(); ckc(x); ckc(y);
ac = bool_obj(get_char(x) > get_char(y));
gonexti();
}
define_instruction(cle) {
obj x = ac, y = spop(); ckc(x); ckc(y);
ac = bool_obj(get_char(x) <= get_char(y));
gonexti();
}
define_instruction(cge) {
obj x = ac, y = spop(); ckc(x); ckc(y);
ac = bool_obj(get_char(x) >= get_char(y));
gonexti();
}
define_instruction(cicmp) {
obj x = ac, y = spop(); int cmp; ckc(x); ckc(y);
cmp = tolower(get_char(x)) - tolower(get_char(y));
ac = fixnum_obj(cmp);
gonexti();
}
define_instruction(cieq) {
obj x = ac, y = spop(); ckc(x); ckc(y);
ac = bool_obj(tolower(get_char(x)) == tolower(get_char(y)));
gonexti();
}
define_instruction(cilt) {
obj x = ac, y = spop(); ckc(x); ckc(y);
ac = bool_obj(tolower(get_char(x)) < tolower(get_char(y)));
gonexti();
}
define_instruction(cigt) {
obj x = ac, y = spop(); ckc(x); ckc(y);
ac = bool_obj(tolower(get_char(x)) > tolower(get_char(y)));
gonexti();
}
define_instruction(cile) {
obj x = ac, y = spop(); ckc(x); ckc(y);
ac = bool_obj(tolower(get_char(x)) <= tolower(get_char(y)));
gonexti();
}
define_instruction(cige) {
obj x = ac, y = spop(); ckc(x); ckc(y);
ac = bool_obj(tolower(get_char(x)) >= tolower(get_char(y)));
gonexti();
}
define_instruction(cwsp) {
ckc(ac);
ac = bool_obj(isspace(get_char(ac)));
gonexti();
}
define_instruction(clcp) {
ckc(ac);
ac = bool_obj(islower(get_char(ac)));
gonexti();
}
define_instruction(cucp) {
ckc(ac);
ac = bool_obj(isupper(get_char(ac)));
gonexti();
}
define_instruction(calp) {
ckc(ac);
ac = bool_obj(isalpha(get_char(ac)));
gonexti();
}
define_instruction(cnup) {
ckc(ac);
ac = bool_obj(isdigit(get_char(ac)));
gonexti();
}
define_instruction(cupc) {
ckc(ac);
ac = char_obj(toupper(get_char(ac)));
gonexti();
}
define_instruction(cdnc) {
ckc(ac);
ac = char_obj(tolower(get_char(ac)));
gonexti();
}
define_instruction(cflc) {
ckc(ac);
ac = char_obj(tolower(get_char(ac))); /* stub */
gonexti();
}
define_instruction(cdgv) {
int ch; ckc(ac);
ch = get_char(ac);
if (likely('0' <= ch && ch <= '9')) ac = fixnum_obj(ch - '0');
/* R7RS won't allow hex and any larger radix digits
else if (likely('a' <= ch && ch <= 'z')) ac = fixnum_obj(10 + ch - 'a');
else if (likely('A' <= ch && ch <= 'Z')) ac = fixnum_obj(10 + ch - 'A'); */
else ac = bool_obj(0);
gonexti();
}
define_instruction(scmp) {
obj x = ac, y = spop(); int cmp; cks(x); cks(y);
cmp = strcmp(stringchars(x), stringchars(y));
ac = fixnum_obj(cmp);
gonexti();
}
define_instruction(seq) {
obj x = ac, y = spop(); cks(x); cks(y);
ac = bool_obj(strcmp(stringchars(x), stringchars(y)) == 0);
gonexti();
}
define_instruction(slt) {
obj x = ac, y = spop(); cks(x); cks(y);
ac = bool_obj(strcmp(stringchars(x), stringchars(y)) < 0);
gonexti();
}
define_instruction(sgt) {
obj x = ac, y = spop(); cks(x); cks(y);
ac = bool_obj(strcmp(stringchars(x), stringchars(y)) > 0);
gonexti();
}
define_instruction(sle) {
obj x = ac, y = spop(); cks(x); cks(y);
ac = bool_obj(strcmp(stringchars(x), stringchars(y)) <= 0);
gonexti();
}
define_instruction(sge) {
obj x = ac, y = spop(); cks(x); cks(y);
ac = bool_obj(strcmp(stringchars(x), stringchars(y)) >= 0);
gonexti();
}
define_instruction(sicmp) {
obj x = ac, y = spop(); int cmp; cks(x); cks(y);
cmp = strcmp_ci(stringchars(x), stringchars(y));
ac = fixnum_obj(cmp);
gonexti();
}
define_instruction(sieq) {
obj x = ac, y = spop(); cks(x); cks(y);
ac = bool_obj(strcmp_ci(stringchars(x), stringchars(y)) == 0);
gonexti();
}
define_instruction(silt) {
obj x = ac, y = spop(); cks(x); cks(y);
ac = bool_obj(strcmp_ci(stringchars(x), stringchars(y)) < 0);
gonexti();
}
define_instruction(sigt) {
obj x = ac, y = spop(); cks(x); cks(y);
ac = bool_obj(strcmp_ci(stringchars(x), stringchars(y)) > 0);
gonexti();
}
define_instruction(sile) {
obj x = ac, y = spop(); cks(x); cks(y);
ac = bool_obj(strcmp_ci(stringchars(x), stringchars(y)) <= 0);
gonexti();
}
define_instruction(sige) {
obj x = ac, y = spop(); cks(x); cks(y);
ac = bool_obj(strcmp_ci(stringchars(x), stringchars(y)) >= 0);
gonexti();
}
define_instruction(symp) {
ac = bool_obj(is_symbol(ac));
gonexti();
}
define_instruction(boolp) {
ac = bool_obj(is_bool(ac));
gonexti();
}
define_instruction(boxp) {
ac = bool_obj(is_box(ac));
gonexti();
}
define_instruction(funp) {
ac = bool_obj(is_proc(ac));
gonexti();
}
define_instruction(voidp) {
ac = bool_obj(is_void(ac));
gonexti();
}
define_instruction(void) {
ac = void_obj();
gonexti();
}
define_instruction(ipp) {
ac = bool_obj(is_iport(ac));
gonexti();
}
define_instruction(opp) {
ac = bool_obj(is_oport(ac));
gonexti();
}
define_instruction(cin) {
ac = cx__2Acurrent_2Dinput_2A;
assert(is_iport(ac));
gonexti();
}
define_instruction(cout) {
ac = cx__2Acurrent_2Doutput_2A;
assert(is_oport(ac));
gonexti();
}
define_instruction(cerr) {
ac = cx__2Acurrent_2Derror_2A;
assert(is_oport(ac));
gonexti();
}
define_instruction(setcin) {
ckr(ac);
cx__2Acurrent_2Dinput_2A = ac;
gonexti();
}
define_instruction(setcout) {
ckw(ac);
cx__2Acurrent_2Doutput_2A = ac;
gonexti();
}
define_instruction(setcerr) {
ckw(ac);
cx__2Acurrent_2Derror_2A = ac;
gonexti();
gonexti();
}
define_instruction(sip) {
ac = iport_file_obj(stdin);
gonexti();
}
define_instruction(sop) {
ac = oport_file_obj(stdout);
gonexti();
}
define_instruction(sep) {
ac = oport_file_obj(stderr);
gonexti();
}
define_instruction(ipop) {
cxtype_iport_t *vt; ckr(ac);
vt = iportvt(ac); assert(vt);
ac = bool_obj(vt != (cxtype_iport_t *)IPORT_CLOSED_NTAG);
gonexti();
}
define_instruction(opop) {
cxtype_oport_t *vt; ckw(ac);
vt = oportvt(ac); assert(vt);
ac = bool_obj(vt != (cxtype_oport_t *)OPORT_CLOSED_NTAG);
gonexti();
}
define_instruction(oif) {
FILE *fp = fopen(stringchars(ac), "r");
ac = (fp == NULL) ? bool_obj(0) : iport_file_obj(fp);
gonexti();
}
define_instruction(oof) {
FILE *fp = fopen(stringchars(ac), "w");
ac = (fp == NULL) ? bool_obj(0) : oport_file_obj(fp);
gonexti();
}
define_instruction(obif) {
FILE *fp = fopen(stringchars(ac), "rb");
ac = (fp == NULL) ? bool_obj(0) : iport_file_obj(fp);
gonexti();
}
define_instruction(obof) {
FILE *fp = fopen(stringchars(ac), "wb");
ac = (fp == NULL) ? bool_obj(0) : oport_file_obj(fp);
gonexti();
}
define_instruction(ois) {
int *d; cks(ac);
d = dupstring(stringdata(ac));
ac = iport_string_obj(sialloc(sdatachars(d), d));
gonexti();
}
define_instruction(oos) {
ac = oport_string_obj(newcb());
gonexti();
}
define_instruction(oib) {
int *d; unsigned char *p, *e; ckb(ac);
d = dupbytevector(bytevectordata(ac));
p = bvdatabytes(d), e = p + *d;
ac = iport_bytevector_obj(bvialloc(p, e, d));
gonexti();
}
define_instruction(oob) {
ac = oport_bytevector_obj(newcb());
gonexti();
}
define_instruction(cip) {
cxtype_iport_t *vt; ckr(ac);
vt = iportvt(ac); assert(vt);
vt->close(iportdata(ac)); vt->free(iportdata(ac));
objptr_from_obj(ac)[-1] = (obj)IPORT_CLOSED_NTAG;
gonexti();
}
define_instruction(cop) {
cxtype_oport_t *vt; ckw(ac);
vt = oportvt(ac); assert(vt);
vt->close(oportdata(ac)); vt->free(oportdata(ac));
objptr_from_obj(ac)[-1] = (obj)OPORT_CLOSED_NTAG;
gonexti();
}
define_instruction(fop) {
ckw(ac);
oportflush(ac);
gonexti();
}
define_instruction(gos) {
cxtype_oport_t *vt; ckw(ac);
vt = ckoportvt(ac);
if (vt != (cxtype_oport_t *)OPORT_STRING_NTAG &&
vt != (cxtype_oport_t *)OPORT_BYTEVECTOR_NTAG) {
ac = eof_obj();
} else {
cbuf_t *pcb = oportdata(ac);
ac = string_obj(newstring(cbdata(pcb)));
}
gonexti();
}
define_instruction(gob) {
cxtype_oport_t *vt; ckw(ac);
vt = ckoportvt(ac);
if (vt != (cxtype_oport_t *)OPORT_BYTEVECTOR_NTAG &&
vt != (cxtype_oport_t *)OPORT_STRING_NTAG) {
ac = eof_obj();
} else {
cbuf_t *pcb = oportdata(ac);
int len = (int)(pcb->fill - pcb->buf);
ac = bytevector_obj(newbytevector((unsigned char *)pcb->buf, len));
}
gonexti();
}
define_instruction(rdc) {
int c; ckr(ac);
c = iportgetc(ac);
if (unlikely(c == EOF)) ac = eof_obj();
else ac = char_obj(c);
gonexti();
}
define_instruction(rdac) {
int c; ckr(ac);
c = iportpeekc(ac);
if (unlikely(c == EOF)) ac = eof_obj();
else ac = char_obj(c);
gonexti();
}
define_instruction(rdcr) {
ckr(ac);
ac = bool_obj(1); /* no portable way to detect hanging? */
gonexti();
}
define_instruction(rd8) {
int c; ckr(ac);
c = iportgetc(ac);
if (unlikely(c == EOF)) ac = eof_obj();
else ac = byte_obj(c);
gonexti();
}
define_instruction(rda8) {
int c; ckr(ac);
c = iportpeekc(ac);
if (unlikely(c == EOF)) ac = eof_obj();
else ac = byte_obj(c);
gonexti();
}
define_instruction(rd8r) {
ckr(ac);
ac = bool_obj(1); /* no portable way to detect hanging? */
gonexti();
}
define_instruction(eofp) {
ac = bool_obj(is_eof(ac));
gonexti();
}
define_instruction(eof) {
ac = eof_obj();
gonexti();
}
define_instruction(wrc) {
obj x = ac, y = spop(); ckc(x); ckw(y);
oportputc(get_char(x), y);
ac = void_obj();
gonexti();
}
define_instruction(wrs) {
obj x = ac, y = spop(); cks(x); ckw(y);
oportputs(stringchars(x), y);
ac = void_obj();
gonexti();
}
define_instruction(wr8) {
obj x = ac, y = spop(); ck8(x); ckw(y);
oportputc(get_byte(x), y);
ac = void_obj();
gonexti();
}
define_instruction(wrb) {
obj x = ac, y = spop(); int *d; ckb(x); ckw(y);
d = bytevectordata(x);
oportwrite((char *)bvdatabytes(d), *d, y);
ac = void_obj();
gonexti();
}
define_instruction(wrcd) {
obj x = ac, y = spop(); ckw(y);
oportputcircular(x, y, 1);
ac = void_obj();
gonexti();
}
define_instruction(wrcw) {
obj x = ac, y = spop(); ckw(y);
oportputcircular(x, y, 0);
ac = void_obj();
gonexti();
}
define_instruction(wrnl) {
ckw(ac);
oportputc('\n', ac);
ac = void_obj();
gonexti();
}
define_instruction(wrhw) {
obj x = ac, y = spop(); ckw(y);
oportputshared(x, y, 0);
ac = void_obj();
gonexti();
}
define_instruction(wriw) {
obj x = ac, y = spop(); ckw(y);
oportputsimple(x, y, 0);
ac = void_obj();
gonexti();
}
define_instruction(igp) {
ac = bool_obj(isintegrable(ac));
gonexti();
}
define_instruction(iglk) {
struct intgtab_entry *pe; cky(ac);
pe = lookup_integrable(get_symbol(ac));
ac = pe ? mkintegrable(pe) : bool_obj(0);
gonexti();
}
define_instruction(igty) {
int it; ckg(ac);
it = integrable_type(integrabledata(ac));
ac = it ? char_obj(it) : bool_obj(0);
gonexti();
}
define_instruction(iggl) {
const char *igs; ckg(ac);
igs = integrable_global(integrabledata(ac));
ac = igs ? mksymbol(internsym((char*)igs)) : bool_obj(0);
gonexti();
}
define_instruction(igco) {
int n; const char *cs; ckg(ac); ckk(sref(0));
n = get_fixnum(spop());
cs = integrable_code(integrabledata(ac), n);
ac = cs ? string_obj(newstring((char*)cs)) : bool_obj(0);
gonexti();
}
define_instruction(rdsx) {
cks(ac);
unload_ac(); /* ac->ra (string) */
unload_ip(); /* ip->rx */
hp = rds_stox(r, sp, hp);
reload_ac(); /* ra->ac (sexp or eof) */
reload_ip(); /* rx->ip */
if (ac == eof_obj()) fail("failed to read serialized s-expression");
gonexti();
}
define_instruction(rdsc) {
cks(ac); unload_ac(); /* ac->ra (string) */
unload_ac(); /* ac->ra (string) */
unload_ip(); /* ip->rx */
hp = rds_stoc(r, sp, hp);
reload_ac(); /* ra->ac (codevec or eof) */
reload_ip(); /* rx->ip */
if (ac == eof_obj()) fail("failed to read serialized code");
gonexti();
}
define_instruction(litf) { ac = bool_obj(0); gonexti(); }
define_instruction(litt) { ac = bool_obj(1); gonexti(); }
define_instruction(litn) { ac = null_obj(); gonexti(); }
define_instruction(pushlitf) { ac = bool_obj(0); spush(ac); gonexti(); }
define_instruction(pushlitt) { ac = bool_obj(1); spush(ac); gonexti(); }
define_instruction(pushlitn) { ac = null_obj(); spush(ac); gonexti(); }
define_instruction(lit0) { ac = fixnum_obj(0); gonexti(); }
define_instruction(lit1) { ac = fixnum_obj(1); gonexti(); }
define_instruction(lit2) { ac = fixnum_obj(2); gonexti(); }
define_instruction(lit3) { ac = fixnum_obj(3); gonexti(); }
define_instruction(lit4) { ac = fixnum_obj(4); gonexti(); }
define_instruction(lit5) { ac = fixnum_obj(5); gonexti(); }
define_instruction(lit6) { ac = fixnum_obj(6); gonexti(); }
define_instruction(lit7) { ac = fixnum_obj(7); gonexti(); }
define_instruction(lit8) { ac = fixnum_obj(8); gonexti(); }
define_instruction(lit9) { ac = fixnum_obj(9); gonexti(); }
define_instruction(pushlit0) { ac = fixnum_obj(0); spush(ac); gonexti(); }
define_instruction(pushlit1) { ac = fixnum_obj(1); spush(ac); gonexti(); }
define_instruction(pushlit2) { ac = fixnum_obj(2); spush(ac); gonexti(); }
define_instruction(pushlit3) { ac = fixnum_obj(3); spush(ac); gonexti(); }
define_instruction(pushlit4) { ac = fixnum_obj(4); spush(ac); gonexti(); }
define_instruction(pushlit5) { ac = fixnum_obj(5); spush(ac); gonexti(); }
define_instruction(pushlit6) { ac = fixnum_obj(6); spush(ac); gonexti(); }
define_instruction(pushlit7) { ac = fixnum_obj(7); spush(ac); gonexti(); }
define_instruction(pushlit8) { ac = fixnum_obj(8); spush(ac); gonexti(); }
define_instruction(pushlit9) { ac = fixnum_obj(9); spush(ac); gonexti(); }
define_instruction(sref0) { ac = sref(0); gonexti(); }
define_instruction(sref1) { ac = sref(1); gonexti(); }
define_instruction(sref2) { ac = sref(2); gonexti(); }
define_instruction(sref3) { ac = sref(3); gonexti(); }
define_instruction(sref4) { ac = sref(4); gonexti(); }
define_instruction(sref5) { ac = sref(5); gonexti(); }
define_instruction(sref6) { ac = sref(6); gonexti(); }
define_instruction(sref7) { ac = sref(7); gonexti(); }
define_instruction(sref8) { ac = sref(8); gonexti(); }
define_instruction(sref9) { ac = sref(9); gonexti(); }
define_instruction(pushsref0) { ac = sref(0); spush(ac); gonexti(); }
define_instruction(pushsref1) { ac = sref(1); spush(ac); gonexti(); }
define_instruction(pushsref2) { ac = sref(2); spush(ac); gonexti(); }
define_instruction(pushsref3) { ac = sref(3); spush(ac); gonexti(); }
define_instruction(pushsref4) { ac = sref(4); spush(ac); gonexti(); }
define_instruction(pushsref5) { ac = sref(5); spush(ac); gonexti(); }
define_instruction(pushsref6) { ac = sref(6); spush(ac); gonexti(); }
define_instruction(pushsref7) { ac = sref(7); spush(ac); gonexti(); }
define_instruction(pushsref8) { ac = sref(8); spush(ac); gonexti(); }
define_instruction(pushsref9) { ac = sref(9); spush(ac); gonexti(); }
define_instruction(srefi0) { ac = box_ref(sref(0)); gonexti(); }
define_instruction(srefi1) { ac = box_ref(sref(1)); gonexti(); }
define_instruction(srefi2) { ac = box_ref(sref(2)); gonexti(); }
define_instruction(srefi3) { ac = box_ref(sref(3)); gonexti(); }
define_instruction(srefi4) { ac = box_ref(sref(4)); gonexti(); }
define_instruction(pushsrefi0) { ac = box_ref(sref(0)); spush(ac); gonexti(); }
define_instruction(pushsrefi1) { ac = box_ref(sref(1)); spush(ac); gonexti(); }
define_instruction(pushsrefi2) { ac = box_ref(sref(2)); spush(ac); gonexti(); }
define_instruction(pushsrefi3) { ac = box_ref(sref(3)); spush(ac); gonexti(); }
define_instruction(pushsrefi4) { ac = box_ref(sref(4)); spush(ac); gonexti(); }
define_instruction(dref0) { ac = dref(0); gonexti(); }
define_instruction(dref1) { ac = dref(1); gonexti(); }
define_instruction(dref2) { ac = dref(2); gonexti(); }
define_instruction(dref3) { ac = dref(3); gonexti(); }
define_instruction(dref4) { ac = dref(4); gonexti(); }
define_instruction(pushdref0) { ac = dref(0); spush(ac); gonexti(); }
define_instruction(pushdref1) { ac = dref(1); spush(ac); gonexti(); }
define_instruction(pushdref2) { ac = dref(2); spush(ac); gonexti(); }
define_instruction(pushdref3) { ac = dref(3); spush(ac); gonexti(); }
define_instruction(pushdref4) { ac = dref(4); spush(ac); gonexti(); }
define_instruction(drefi0) { ac = box_ref(dref(0)); gonexti(); }
define_instruction(drefi1) { ac = box_ref(dref(1)); gonexti(); }
define_instruction(drefi2) { ac = box_ref(dref(2)); gonexti(); }
define_instruction(drefi3) { ac = box_ref(dref(3)); gonexti(); }
define_instruction(drefi4) { ac = box_ref(dref(4)); gonexti(); }
define_instruction(pushdrefi0) { ac = box_ref(dref(0)); spush(ac); gonexti(); }
define_instruction(pushdrefi1) { ac = box_ref(dref(1)); spush(ac); gonexti(); }
define_instruction(pushdrefi2) { ac = box_ref(dref(2)); spush(ac); gonexti(); }
define_instruction(pushdrefi3) { ac = box_ref(dref(3)); spush(ac); gonexti(); }
define_instruction(pushdrefi4) { ac = box_ref(dref(4)); spush(ac); gonexti(); }
define_instruction(call0) {
ckx(ac); rd = ac; rx = fixnum_obj(0); ac = fixnum_obj(0);
callsubi();
}
define_instruction(call1) {
ckx(ac); rd = ac; rx = fixnum_obj(0); ac = fixnum_obj(1);
callsubi();
}
define_instruction(call2) {
ckx(ac); rd = ac; rx = fixnum_obj(0); ac = fixnum_obj(2);
callsubi();
}
define_instruction(call3) {
ckx(ac); rd = ac; rx = fixnum_obj(0); ac = fixnum_obj(3);
callsubi();
}
define_instruction(call4) {
ckx(ac); rd = ac; rx = fixnum_obj(0); ac = fixnum_obj(4);
callsubi();
}
define_instruction(sreturn1) {
sdrop(1); rx = spop(); rd = spop();
retfromi();
}
define_instruction(sreturn2) {
sdrop(2); rx = spop(); rd = spop();
retfromi();
}
define_instruction(sreturn3) {
sdrop(3); rx = spop(); rd = spop();
retfromi();
}
define_instruction(sreturn4) {
sdrop(4); rx = spop(); rd = spop();
retfromi();
}
define_instruction(atest0) {
if (unlikely(ac != fixnum_obj(0))) fail("argument count error on entry");
gonexti();
}
define_instruction(atest1) {
if (unlikely(ac != fixnum_obj(1))) fail("argument count error on entry");
gonexti();
}
define_instruction(atest2) {
if (unlikely(ac != fixnum_obj(2))) fail("argument count error on entry");
gonexti();
}
define_instruction(atest3) {
if (unlikely(ac != fixnum_obj(3))) fail("argument count error on entry");
gonexti();
}
define_instruction(atest4) {
if (unlikely(ac != fixnum_obj(4))) fail("argument count error on entry");
gonexti();
}
define_instruction(scall1) {
int m = 1, n = get_fixnum(*ip++);
ckx(ac); rd = ac; rx = fixnum_obj(0);
ac = fixnum_obj(n); /* argc */
objmove_left(sp-n-m, sp-n, n);
sdrop(m); callsubi();
}
define_instruction(scall10) {
ckx(ac); rd = ac; rx = fixnum_obj(0); ac = fixnum_obj(0);
sdrop(1); callsubi();
}
define_instruction(scall11) {
ckx(ac); rd = ac; rx = fixnum_obj(0); ac = fixnum_obj(1);
sref(1) = sref(0);
sdrop(1); callsubi();
}
define_instruction(scall12) {
ckx(ac); rd = ac; rx = fixnum_obj(0); ac = fixnum_obj(2);
sref(2) = sref(1); sref(1) = sref(0);
sdrop(1); callsubi();
}
define_instruction(scall13) {
ckx(ac); rd = ac; rx = fixnum_obj(0); ac = fixnum_obj(3);
sref(3) = sref(2); sref(2) = sref(1); sref(1) = sref(0);
sdrop(1); callsubi();
}
define_instruction(scall14) {
ckx(ac); rd = ac; rx = fixnum_obj(0); ac = fixnum_obj(4);
sref(4) = sref(3); sref(3) = sref(2); sref(2) = sref(1); sref(1) = sref(0);
sdrop(1); callsubi();
}
define_instruction(scall2) {
int m = 2, n = get_fixnum(*ip++);
ckx(ac); rd = ac; rx = fixnum_obj(0);
ac = fixnum_obj(n);
objmove_left(sp-n-m, sp-n, n);
sdrop(m); callsubi();
}
define_instruction(scall20) {
ckx(ac); rd = ac; rx = fixnum_obj(0); ac = fixnum_obj(0);
sdrop(2); callsubi();
}
define_instruction(scall21) {
ckx(ac); rd = ac; rx = fixnum_obj(0); ac = fixnum_obj(1);
sref(2) = sref(0);
sdrop(2); callsubi();
}
define_instruction(scall22) {
ckx(ac); rd = ac; rx = fixnum_obj(0); ac = fixnum_obj(2);
sref(3) = sref(1); sref(2) = sref(0);
sdrop(2); callsubi();
}
define_instruction(scall23) {
ckx(ac); rd = ac; rx = fixnum_obj(0); ac = fixnum_obj(3);
sref(4) = sref(2); sref(3) = sref(1); sref(2) = sref(0);
sdrop(2); callsubi();
}
define_instruction(scall24) {
ckx(ac); rd = ac; rx = fixnum_obj(0); ac = fixnum_obj(4);
sref(5) = sref(3); sref(4) = sref(2); sref(3) = sref(1); sref(2) = sref(0);
sdrop(2); callsubi();
}
define_instruction(scall3) {
int m = 3, n = get_fixnum(*ip++);
ckx(ac); rd = ac; rx = fixnum_obj(0);
ac = fixnum_obj(n);
objmove_left(sp-n-m, sp-n, n);
sdrop(m); callsubi();
}
define_instruction(scall30) {
ckx(ac); rd = ac; rx = fixnum_obj(0); ac = fixnum_obj(0);
sdrop(3); callsubi();
}
define_instruction(scall31) {
ckx(ac); rd = ac; rx = fixnum_obj(0); ac = fixnum_obj(1);
sref(3) = sref(0);
sdrop(3); callsubi();
}
define_instruction(scall32) {
ckx(ac); rd = ac; rx = fixnum_obj(0); ac = fixnum_obj(2);
sref(4) = sref(1); sref(3) = sref(0);
sdrop(3); callsubi();
}
define_instruction(scall33) {
ckx(ac); rd = ac; rx = fixnum_obj(0); ac = fixnum_obj(3);
sref(5) = sref(2); sref(4) = sref(1); sref(3) = sref(0);
sdrop(3); callsubi();
}
define_instruction(scall34) {
ckx(ac); rd = ac; rx = fixnum_obj(0); ac = fixnum_obj(4);
sref(6) = sref(3); sref(5) = sref(2); sref(4) = sref(1); sref(3) = sref(0);
sdrop(3); callsubi();
}
define_instruction(scall4) {
int m = 4, n = get_fixnum(*ip++);
ckx(ac); rd = ac; rx = fixnum_obj(0);
ac = fixnum_obj(n);
objmove_left(sp-n-m, sp-n, n);
sdrop(m); callsubi();
}
define_instruction(scall40) {
ckx(ac); rd = ac; rx = fixnum_obj(0); ac = fixnum_obj(0);
sdrop(4); callsubi();
}
define_instruction(scall41) {
ckx(ac); rd = ac; rx = fixnum_obj(0); ac = fixnum_obj(1);
sref(4) = sref(0);
sdrop(4); callsubi();
}
define_instruction(scall42) {
ckx(ac); rd = ac; rx = fixnum_obj(0); ac = fixnum_obj(2);
sref(5) = sref(1); sref(4) = sref(0);
sdrop(4); callsubi();
}
define_instruction(scall43) {
ckx(ac); rd = ac; rx = fixnum_obj(0); ac = fixnum_obj(3);
sref(6) = sref(2); sref(5) = sref(1); sref(4) = sref(0);
sdrop(4); callsubi();
}
define_instruction(scall44) {
ckx(ac); rd = ac; rx = fixnum_obj(0); ac = fixnum_obj(4);
sref(7) = sref(3); sref(6) = sref(2); sref(5) = sref(1); sref(4) = sref(0);
sdrop(4); callsubi();
}
define_instruction(brnotlt) {
obj x = ac, y = spop();
if (likely(are_fixnums(x, y))) {
int dx = get_fixnum(*ip++);
ac = bool_obj(get_fixnum(x) < get_fixnum(y));
ip = ac ? ip : ip + dx;
gonexti();
} else {
int dx = get_fixnum(*ip++);
double fx, fy;
if (likely(is_flonum(x))) fx = get_flonum(x);
else { cki(x); fx = (double)get_fixnum(x); }
if (likely(is_flonum(y))) fy = get_flonum(y);
else { cki(y); fy = (double)get_fixnum(y); }
ac = bool_obj(fx < fy);
ip = ac ? ip : ip + dx;
gonexti();
}
}
define_instruction(pushsub) {
obj x = ac, y = spop();
if (likely(are_fixnums(x, y))) {
long lx = get_fixnum(x), ly = get_fixnum(y);
long long llz = (long long)lx - (long long)ly;
if (likely(llz >= FIXNUM_MIN && llz <= FIXNUM_MAX)) ac = fixnum_obj((long)llz);
else ac = flonum_obj((double)lx - (double)ly);
} else {
double dx, dy;
if (likely(is_flonum(x))) dx = get_flonum(x);
else if (likely(is_fixnum(x))) dx = (double)get_fixnum(x);
else failtype(x, "number");
if (likely(is_flonum(y))) dy = get_flonum(y);
else if (likely(is_fixnum(y))) dy = (double)get_fixnum(y);
else failtype(y, "number");
ac = flonum_obj(dx - dy);
}
spush(ac);
gonexti();
}
define_instruction(fexis) {
FILE *f; cks(ac);
f = fopen(stringchars(ac), "r"); /* todo: pile #ifdefs here */
if (f != NULL) fclose(f);
ac = bool_obj(f != NULL);
gonexti();
}
define_instruction(frem) {
int res; cks(ac);
res = remove(stringchars(ac));
ac = bool_obj(res == 0);
gonexti();
}
define_instruction(fren) {
int res; cks(ac); cks(sref(0));
res = rename(stringchars(ac), stringchars(sref(0)));
spop();
ac = bool_obj(res == 0);
gonexti();
}
define_instruction(argvref) {
int i; char *s; ckk(ac);
i = get_fixnum(ac); /* todo: range-check */
s = cxg_argv[i];
if (s) ac = string_obj(newstring(s));
else ac = bool_obj(0);
gonexti();
}
define_instruction(getenv) {
char *v; cks(ac);
v = getenv(stringchars(ac));
if (v) ac = string_obj(newstring(v));
else ac = bool_obj(0);
gonexti();
}
define_instruction(clock) {
double d = (double)clock();
ac = flonum_obj(d);
gonexti();
}
define_instruction(clops) {
double d = (double)CLOCKS_PER_SEC;
ac = flonum_obj(d);
gonexti();
}
define_instruction(cursec) {
double d = difftime(time(NULL), 0) + 37.0;
ac = flonum_obj(d);
gonexti();
}
#define VM_GEN_DEFGLOBAL
#include "i.h"
#undef VM_GEN_DEFGLOBAL
/* integrables table */
struct intgtab_entry { int sym; char *igname; int igtype; char *enc; char *lcode; };
#define declare_intgtable_entry(enc, igname, igtype, lcode) \
{ 0, igname, igtype, enc, lcode },
static struct intgtab_entry intgtab[] = {
#define VM_GEN_INTGTABLE
#include "i.h"
#undef VM_GEN_INTGTABLE
};
static int intgtab_sorted = 0;
static int intgtab_cmp(const void *p1, const void *p2)
{
int igtype1, igtype2;
struct intgtab_entry *pe1 = (struct intgtab_entry *)p1;
struct intgtab_entry *pe2 = (struct intgtab_entry *)p2;
if (pe1->sym < pe2->sym) return -1;
if (pe1->sym > pe2->sym) return 1;
igtype1 = pe1->igtype; if (igtype1 >= ' ') igtype1 = ' ';
igtype2 = pe2->igtype; if (igtype2 >= ' ') igtype2 = ' ';
if (igtype1 < igtype2) return -1;
if (igtype1 > igtype2) return 1;
return 0;
}
static void sort_intgtab(int n)
{
if (!intgtab_sorted) {
int i;
for (i = 0; i < n; ++i) {
struct intgtab_entry *pe = &intgtab[i];
pe->sym = pe->igname ? internsym(pe->igname) : 0;
}
qsort(&intgtab[0], n, sizeof(intgtab[0]), intgtab_cmp);
intgtab_sorted = 1;
}
}
static int isintegrable(obj o)
{
int n = sizeof(intgtab)/sizeof(intgtab[0]);
if (is_fixnum_obj(o)) {
int i = fixnum_from_obj(o);
if (i >= 0 && i < n) {
struct intgtab_entry *pe = &intgtab[i];
return (pe && pe->igtype >= ' ' && pe->igname && pe->enc);
}
}
return 0;
}
static struct intgtab_entry *integrabledata(obj o)
{
int n = sizeof(intgtab)/sizeof(intgtab[0]);
int i = fixnum_from_obj(o);
struct intgtab_entry *pe = &intgtab[i];
assert(i >= 0 && i < n);
return pe;
}
static obj mkintegrable(struct intgtab_entry *pe)
{
int n = sizeof(intgtab)/sizeof(intgtab[0]);
assert(pe >= &intgtab[0] && pe < &intgtab[n]);
return obj_from_fixnum(pe-intgtab);
}
static struct intgtab_entry *lookup_integrable(int sym)
{
struct intgtab_entry e, *pe;
int n = sizeof(intgtab)/sizeof(intgtab[0]);
if (!intgtab_sorted) sort_intgtab(n);
e.sym = sym; e.igtype = ' ';
pe = bsearch(&e, &intgtab[0], n, sizeof(intgtab[0]), intgtab_cmp);
return (pe && pe->igtype >= ' ' && pe->igname && pe->enc) ? pe : NULL;
}
static int integrable_type(struct intgtab_entry *pi)
{
int it = pi->igtype;
return (it >= ' ') ? it : 0;
}
static const char *integrable_global(struct intgtab_entry *pi)
{
return (pi->igtype >= ' ') ? pi->igname : NULL;
}
static const char *integrable_code(struct intgtab_entry *pi, int n)
{
char *ps, *code = NULL; int it = pi->igtype;
if (it >= ' ') {
ps = pi->enc; assert(ps);
while (ps && n-- > 0) {
ps += strlen(ps) + 1; /* \0 terminates each field */
assert(*ps);
}
code = ps;
}
return code;
}
/* deserialization machinery */
static int rds_char(obj port)
{
int c = iportgetc(port);
if (c == '%') {
char buf[3];
buf[0] = iportgetc(port); buf[1] = iportgetc(port); buf[2] = 0;
c = (int)strtol(buf, NULL, 16);
}
return c;
}
static int rds_byte(obj port)
{
char buf[3]; int b;
buf[0] = iportgetc(port); buf[1] = iportgetc(port); buf[2] = 0;
b = (int)strtoul(buf, NULL, 16);
return b;
}
static int rds_int(obj port)
{
char buf[60], *p = buf, *e = p+59;
while (p < e) {
int c = iportpeekc(port);
if (c == '-' || c == '+' || (c >= '0' && c <= '9')) {
iportgetc(port);
*p++ = c;
} else break;
}
*p = 0;
return (int)strtol(buf, NULL, 10);
}
static double rds_real(obj port)
{
char buf[60], *p = buf, *e = p+59, *s; double d;
while (p < e) {
int c = iportpeekc(port);
if (c == '-' || c == '+' || c == '.' || isalnum(c)) {
iportgetc(port);
*p++ = c;
} else break;
}
*p = 0;
errno = 0; s = buf; e = "";
if (*s != '+' && *s != '-') d = strtod(s, &e);
else if (strcmp_ci(s+1, "inf.0") == 0) d = (*s == '-' ? -HUGE_VAL : HUGE_VAL);
else if (strcmp_ci(s+1, "nan.0") == 0) d = HUGE_VAL - HUGE_VAL;
else d = strtod(s, &e);
if (errno || e == s || *e) assert(0);
return d;
}
static size_t rds_size(obj port)
{
int n = rds_int(port);
if ((n < 0) || iportgetc(port) != ':') return 0; /* postpone failure */
return (size_t)n;
}
/* see below */
static obj *rds_sexp(obj *r, obj *sp, obj *hp);
/* protects registers from r to sp, in: ra=port, out: ra=sexp/eof */
static obj *rds_elt(obj *r, obj *sp, obj *hp)
{
obj port = ra;
spush(port);
hp = rds_sexp(r, sp, hp);
port = spop();
if (!iseof(ra) && iportgetc(port) != ';') ra = mkeof();
return hp;
}
/* protects registers from r to sp, in: ra=port, out: ra=sexp/eof */
static obj *rds_sexp(obj *r, obj *sp, obj *hp)
{
obj port = ra;
int c = iportgetc(port);
switch (c) {
default: ra = mkeof(); break;
case 'f': ra = obj_from_bool(0); break;
case 't': ra = obj_from_bool(1); break;
case 'n': ra = mknull(); break;
case 'c': ra = obj_from_char(rds_char(port)); break;
case 'i': ra = obj_from_fixnum(rds_int(port)); break;
case 'j': ra = obj_from_flonum(sp-r, rds_real(port)); break;
case 'p': {
spush(port);
ra = sref(0); hp = rds_elt(r, sp, hp);
if (iseof(ra)) { sdrop(1); return hp; } else spush(ra);
ra = sref(1); hp = rds_elt(r, sp, hp);
if (iseof(ra)) { sdrop(2); return hp; } else spush(ra);
hreserve(pairbsz(), sp-r);
*--hp = sref(0);
*--hp = sref(1);
ra = hend_pair();
sdrop(3);
} break;
case 'l': {
size_t n = rds_size(port), i;
spush(port); /* sref(0)=port */
for (i = 0; i < n; ++i) {
ra = sref((int)i); hp = rds_elt(r, sp, hp);
if (iseof(ra)) { sdrop(i+1); return hp; } else spush(ra);
}
hreserve(pairbsz()*n, sp-r);
ra = mknull();
for (i = 0; i < n; ++i) {
*--hp = ra;
*--hp = sref((int)i);
ra = hend_pair();
}
sdrop(n+1);
} break;
case 'v': {
size_t n = rds_size(port), i;
spush(port);
for (i = 0; i < n; ++i) {
ra = sref((int)i); hp = rds_elt(r, sp, hp);
if (iseof(ra)) { sdrop(i+1); return hp; } else spush(ra);
}
hreserve(vecbsz(n), sp-r);
hp -= n; memcpy(hp, sp-n, n*sizeof(obj));
ra = hend_vec(n);
sdrop(n+1);
} break;
case 's': case 'y': {
cbuf_t *pcb = newcb();
size_t n = rds_size(port), i;
for (i = 0; i < n; ++i) {
int x = rds_char(port);
cbputc(x, pcb);
}
if (c == 's') ra = hpushstr(sp-r, newstring(cbdata(pcb)));
else ra = mksymbol(internsym(cbdata(pcb)));
freecb(pcb);
} break;
case 'b': {
cbuf_t *pcb = newcb();
size_t n = rds_size(port), i;
for (i = 0; i < n; ++i) {
int x = rds_byte(port);
cbputc(x, pcb);
}
ra = hpushu8v(sp-r, newbytevector((unsigned char *)cbdata(pcb), (int)cblen(pcb)));
freecb(pcb);
}
}
return hp;
}
/* protects registers from r to sp, in: ra=str, out: ra=sexp/eof */
static obj *rds_stox(obj *r, obj *sp, obj *hp)
{
int *d = dupstring(stringdata(ra));
ra = mkiport_string(sp-r, sialloc(sdatachars(d), d));
hp = rds_sexp(r, sp, hp); /* ra=port => ra=sexp/eof */
return hp;
}
static struct { obj *pg; const char *enc; int etyp; } enctab[] = {
#define VM_GEN_ENCTABLE
#define declare_enctable_entry(name, enc, etyp) \
{ &glue(cx_ins_2D, name), enc, etyp },
#include "i.h"
#undef declare_enctable_entry
#undef VM_GEN_ENCTABLE
{ NULL, NULL, 0 }
};
struct emtrans { int c; struct embranch *pbr; struct emtrans *ptr; };
struct embranch { obj g; int etyp; struct emtrans *ptr; };
static struct embranch encmap = { 0, 0, NULL };
static void encmap_add(const char *enc, obj g, int etyp)
{
const char *pc = enc; struct embranch *pbr = &encmap;
down: while (*pc) {
int c = *pc++; struct emtrans *ptr = pbr->ptr;
while (ptr != NULL) {
if (ptr->c != c) {
if (ptr->ptr == NULL) break;
ptr = ptr->ptr; continue;
}
pbr = ptr->pbr; goto down;
}
if (!(ptr = calloc(1, sizeof(struct emtrans))))
{ perror("encmap[memt]"); exit(2); }
ptr->c = c; ptr->ptr = pbr->ptr; pbr->ptr = ptr;
if (!(ptr->pbr = calloc(1, sizeof(struct embranch))))
{ perror("encmap[memb]"); exit(2); }
pbr = ptr->pbr;
}
if (pbr->g != 0) {
perror("encmap[dup]"); exit(2);
}
pbr->g = g; pbr->etyp = etyp;
}
static struct embranch *get_encmap(void)
{
if (encmap.ptr == NULL) {
size_t i;
for (i = 0; enctab[i].pg != NULL; ++i) {
if (enctab[i].enc != NULL) {
encmap_add(enctab[i].enc, *(enctab[i].pg), enctab[i].etyp);
}
}
assert(encmap.g == 0);
assert(encmap.ptr != NULL);
}
return &encmap;
}
static struct embranch *rds_prefix(obj port)
{
struct embranch *pbr = get_encmap(); int c;
down: while ((c = iportpeekc(port)) != EOF) {
struct emtrans *ptr = pbr->ptr;
while (ptr != NULL) {
if (ptr->c != c) {
if (ptr->ptr == NULL) break;
ptr = ptr->ptr; continue;
}
pbr = ptr->pbr; iportgetc(port);
goto down;
}
break;
}
return pbr;
}
static obj lastpair(obj l)
{
obj p = bool_obj(0);
while (ispair(l)) { p = l; l = cdr(l); }
return p;
}
static fixnum_t length(obj l)
{
fixnum_t n = 0;
while (ispair(l)) { ++n; l = cdr(l); }
return n;
}
/* protects registers from r to sp, in: ra=list, out: ra=vec */
obj *revlist2vec(obj *r, obj *sp, obj *hp)
{
obj l; fixnum_t n = length(ra), i;
hreserve(vecbsz(n), sp-r);
for (l = ra, i = 0; i < n; ++i, l = cdr(l)) *--hp = pair_car(l);
ra = hend_vec(n);
return hp;
}
/* protects registers from r to sp, in: ra=code, out: ra=closure */
obj *close0(obj *r, obj *sp, obj *hp)
{
hreserve(vmclobsz(1), sp-r);
*--hp = ra;
ra = hend_vmclo(1);
return hp;
}
/* protects registers from r to sp, in: ra=port, out: ra=sexp/eof */
static obj *rds_arg(obj *r, obj *sp, obj *hp)
{
obj port = ra; int c = iportgetc(port);
if ('0' <= c && c <= '9') {
ra = obj_from_fixnum(c-'0');
} else {
if (c != '(') ra = mkeof(); else {
spush(port);
ra = sref(0); hp = rds_sexp(r, sp, hp);
port = sref(0);
if (!iseof(ra) && iportgetc(port) != ')') ra = mkeof();
sdrop(1);
}
}
return hp;
}
/* protects registers from r to sp, in: ra=sym, out: ra=loc/eof */
static obj *rds_global_loc(obj *r, obj *sp, obj *hp)
{
if (issymbol(ra)) {
obj p = isassv(ra, cx__2Aglobals_2A);
if (ispair(p)) ra = cdr(p);
else { /* prepend (sym . #&sym) to *globals* */
obj box;
hreserve(boxbsz()*1+pairbsz()*2, sp-r);
*--hp = ra;
box = hend_box();
*--hp = box; *--hp = ra;
ra = hend_pair();
*--hp = cx__2Aglobals_2A; *--hp = ra;
cx__2Aglobals_2A = hend_pair();
ra = box;
}
} else {
ra = mkeof();
}
return hp;
}
/* see below */
static obj *rds_seq(obj *r, obj *sp, obj *hp);
/* protects registers from r to sp, in: ra=port, out: ra=sexp/eof */
static obj *rds_block(obj *r, obj *sp, obj *hp)
{
obj port = ra; int c = iportgetc(port);
if (c != '{') ra = mkeof(); else {
spush(port);
ra = sref(0); hp = rds_seq(r, sp, hp);
port = sref(0);
if (!iseof(ra) && iportgetc(port) != '}') ra = mkeof();
sdrop(1);
}
return hp;
}
/* protects registers from r to sp, in: ra=port, out: ra=sexp/eof */
static obj *rds_seq(obj *r, obj *sp, obj *hp)
{
obj port = ra; int c;
spush(port); /* sref[1] = port */
spush(mknull()); /* sref[0] = l */
more:
c = iportpeekc(sref(1));
if (c == EOF) {
hreserve(pairbsz(), sp-r);
*--hp = sref(0); *--hp = glue(cx_ins_2D, halt);
ra = hend_pair();
} else if (c == '}') {
ra = sref(0);
} else {
struct embranch *pbr = rds_prefix(sref(1));
if (pbr->g == 0) {
/* fprintf(stderr, "### rds_seq's remaining chars:\n");
while (iportpeekc(sref(1)) != EOF) fputc(iportgetc(sref(1)), stderr);
fputc('\n', stderr); */
ra = mkeof();
} else switch (pbr->etyp) {
case 0: {
hreserve(pairbsz(), sp-r);
*--hp = sref(0); *--hp = pbr->g;
sref(0) = hend_pair();
goto more;
} break;
case 1: {
ra = sref(1); hp = rds_arg(r, sp, hp);
if (iseof(ra)) goto out;
hreserve(pairbsz()*2, sp-r);
*--hp = sref(0); *--hp = pbr->g;
sref(0) = hend_pair();
*--hp = sref(0); *--hp = ra;
sref(0) = hend_pair();
goto more;
} break;
case 2: {
ra = sref(1); hp = rds_arg(r, sp, hp);
if (iseof(ra)) goto out;
hreserve(pairbsz()*2, sp-r);
*--hp = sref(0); *--hp = pbr->g;
sref(0) = hend_pair();
*--hp = sref(0); *--hp = ra;
sref(0) = hend_pair();
ra = sref(1); hp = rds_arg(r, sp, hp);
if (iseof(ra)) goto out;
hreserve(pairbsz(), sp-r);
*--hp = sref(0); *--hp = ra;
sref(0) = hend_pair();
goto more;
} break;
case 'f': case 't': case 'n': {
hreserve(pairbsz()*2, sp-r);
*--hp = sref(0); *--hp = pbr->g;
sref(0) = hend_pair();
*--hp = sref(0); *--hp = (pbr->etyp == 'n' ? mknull() : obj_from_bool(pbr->etyp == 't'));
sref(0) = hend_pair();
goto more;
} break;
case 'g': { /* gref/gset */
ra = sref(1); hp = rds_arg(r, sp, hp);
if (iseof(ra)) goto out;
hp = rds_global_loc(r, sp, hp); /* ra => ra */
if (iseof(ra)) goto out;
hreserve(pairbsz()*2, sp-r);
*--hp = sref(0); *--hp = pbr->g;
sref(0) = hend_pair();
*--hp = sref(0); *--hp = ra;
sref(0) = hend_pair();
goto more;
} break;
case 'a': { /* andbo */
hreserve(pairbsz(), sp-r);
*--hp = sref(0); *--hp = pbr->g;
sref(0) = hend_pair();
c = iportpeekc(sref(1));
if (c == EOF || c == '}') { ra = mkeof(); goto out; }
pbr = rds_prefix(sref(1));
if (pbr->g == 0 || pbr->etyp != 0) { ra = mkeof(); goto out; }
hreserve(pairbsz(), sp-r);
*--hp = sref(0); *--hp = pbr->g;
sref(0) = hend_pair();
goto more;
} break;
case 's': { /* save */
fixnum_t n;
ra = sref(1); hp = rds_block(r, sp, hp);
if (iseof(ra)) goto out;
n = length(ra);
hreserve(pairbsz()*2, sp-r);
*--hp = sref(0); *--hp = pbr->g;
sref(0) = hend_pair();
*--hp = sref(0); *--hp = obj_from_fixnum(n);
sref(0) = hend_pair();
if (n > 0) {
obj lp = lastpair(ra); assert(ispair(lp));
cdr(lp) = sref(0); sref(0) = ra;
}
goto more;
} break;
case 'd': { /* dclose */
fixnum_t n;
ra = sref(1); hp = rds_arg(r, sp, hp);
if (!is_fixnum_obj(ra)) { ra = mkeof(); goto out; }
n = get_fixnum(ra);
ra = sref(1); hp = rds_block(r, sp, hp);
if (iseof(ra)) goto out;
hp = revlist2vec(r, sp, hp); /* ra => ra */
if (iseof(ra)) goto out;
hreserve(pairbsz()*3, sp-r);
*--hp = sref(0); *--hp = pbr->g;
sref(0) = hend_pair();
*--hp = sref(0); *--hp = obj_from_fixnum(n);
sref(0) = hend_pair();
*--hp = sref(0); *--hp = ra;
sref(0) = hend_pair();
goto more;
} break;
case 'b': { /* branches */
fixnum_t n; int c;
ra = sref(1); hp = rds_block(r, sp, hp);
if (iseof(ra)) goto out;
c = iportpeekc(sref(1));
if (c == '{') { /* 2-arm branch combo */
obj bseq1 = ra, bseq2;
spush(bseq1); /* ... port, l, bseq1 <= sp */
ra = sref(2); hp = rds_block(r, sp, hp);
if (iseof(ra)) { sdrop(1); goto out; }
hreserve(pairbsz()*4, sp-r);
bseq1 = spop(); bseq2 = ra;
n = length(bseq1);
*--hp = sref(0); *--hp = pbr->g;
sref(0) = hend_pair();
*--hp = sref(0); *--hp = obj_from_fixnum(n+2);
sref(0) = hend_pair();
if (n > 0) {
obj lp = lastpair(bseq1); assert(ispair(lp));
cdr(lp) = sref(0); sref(0) = bseq1;
}
*--hp = sref(0); *--hp = glue(cx_ins_2D, br);
sref(0) = hend_pair();
n = length(bseq2);
*--hp = sref(0); *--hp = obj_from_fixnum(n);
sref(0) = hend_pair();
if (n > 0) {
obj lp = lastpair(bseq2); assert(ispair(lp));
cdr(lp) = sref(0); sref(0) = bseq2;
}
} else { /* regular 1-arm branch */
n = length(ra);
hreserve(pairbsz()*2, sp-r);
*--hp = sref(0); *--hp = pbr->g;
sref(0) = hend_pair();
*--hp = sref(0); *--hp = obj_from_fixnum(n);
sref(0) = hend_pair();
if (n > 0) {
obj lp = lastpair(ra); assert(ispair(lp));
cdr(lp) = sref(0); sref(0) = ra;
}
}
goto more;
} break;
default: assert(0);
}
}
out:
sdrop(2);
return hp;
}
/* protects registers from r to sp, in: ra=str, out: ra=codevec/eof */
static obj *rds_stoc(obj *r, obj *sp, obj *hp)
{
int *d = dupstring(stringdata(ra));
/* fprintf(stderr, "** rds_stoc(%s)\n", sdatachars(d)); */
ra = mkiport_string(sp-r, sialloc(sdatachars(d), d));
hp = rds_seq(r, sp, hp); /* ra=port => ra=revcodelist/eof */
if (!iseof(ra)) hp = revlist2vec(r, sp, hp); /* ra => ra */
return hp;
}
/* protects registers from r to sp */
static obj *rds_intgtab(obj *r, obj *sp, obj *hp)
{
int i, n = sizeof(intgtab)/sizeof(intgtab[0]);
char lbuf[200], *lcode, *pe0, *pe1;
if (!intgtab_sorted) sort_intgtab(n);
for (i = 0; i < n; ++i) {
struct intgtab_entry *pe = &intgtab[i];
if (!pe->igname) continue;
lcode = pe->lcode;
if (!lcode) switch (pe->igtype) {
case '0': {
lcode = lbuf; assert(pe->enc);
sprintf(lbuf, "%%0%s]0", pe->enc);
} break;
case '1': {
lcode = lbuf; assert(pe->enc);
sprintf(lbuf, "%%1_!%s]0", pe->enc);
} break;
case '2': {
lcode = lbuf; assert(pe->enc);
sprintf(lbuf, "%%2_!%s]0", pe->enc);
} break;
case '3': {
lcode = lbuf; assert(pe->enc);
sprintf(lbuf, "%%3_!%s]0", pe->enc);
} break;
case 'p': {
lcode = lbuf; assert(pe->enc);
pe0 = pe->enc; pe1 = pe0 + strlen(pe0) + 1; assert(*pe1);
sprintf(lbuf, "%%!0.0u?{%s]1}.0d,.1a,,#0.0,&1{%%2.1u?{.0]2}.1d,.2a,.2%s,:0^[22}.!0.0^_1[12", pe1, pe0);
} break;
case 'm': {
lcode = lbuf; assert(pe->enc);
pe0 = pe->enc; pe1 = pe0 + strlen(pe0) + 1; assert(*pe1);
sprintf(lbuf, "%%!1.0u?{.1%s]2}.0,.2,,#0.0,&1{%%2.1u?{.0]2}.1d,.2a,.2%s,:0^[22}.!0.0^_1[22", pe1, pe0);
} break;
case 'c': {
lcode = lbuf; assert(pe->enc);
sprintf(lbuf, "%%!0.0u,.0?{.0]2}.1d,.2a,,#0.0,&1{%%2.1u,.0?{.0]3}.2a,.0,.3%s?{.3d,.1,:0^[42}f]4}.!0.0^_1[22", pe->enc);
} break;
case 'x': {
lcode = lbuf; assert(pe->enc);
sprintf(lbuf, "%%!1.0,.2,,#0.0,&1{%%2.1u?{.0]2}.1d,.2a,.2%s,:0^[22}.!0.0^_1[22}", pe->enc);
} break;
case 'u': {
lcode = lbuf; assert(pe->enc);
pe0 = pe->enc; pe1 = pe0 + strlen(pe0) + 1; assert(*pe1);
sprintf(lbuf, "%%!0.0u?{%s%s]1}.0du?{.0a%s]1}%%%%", pe1, pe0, pe0);
} break;
case 'b': {
lcode = lbuf; assert(pe->enc);
pe0 = pe->enc; pe1 = pe0 + strlen(pe0) + 1; assert(*pe1);
sprintf(lbuf, "%%!1.0u?{%s,.2%s]2}.0du?{.0a,.2%s]2}%%%%", pe1, pe0, pe0);
} break;
case 't': {
lcode = lbuf; assert(pe->enc);
pe0 = pe->enc; pe1 = pe0 + strlen(pe0) + 1; assert(*pe1);
sprintf(lbuf, "%%!2.0u?{%s,.3,.3%s]3}.0du?{.0a,.3,.3%s]3}%%%%", pe1, pe0, pe0);
} break;
case '#': /* must have explicit lcode */
assert(0);
case '@': /* must have explicit lcode */
assert(0);
default:
assert(0);
}
if (!lcode || *lcode == 0) continue;
ra = mksymbol(internsym(pe->igname));
hp = rds_global_loc(r, sp, hp); /* ra->ra */
spush(ra); assert(isbox(ra));
ra = mkiport_string(sp-r, sialloc(lcode, NULL));
hp = rds_seq(r, sp, hp); /* ra=port => ra=revcodelist/eof */
if (!iseof(ra)) hp = revlist2vec(r, sp, hp); /* ra => ra */
if (!iseof(ra)) hp = close0(r, sp, hp); /* ra => ra */
if (!iseof(ra)) boxref(spop()) = ra;
}
return hp;
}
/* protects registers from r to sp=r+2; returns new hp */
static obj *init_module(obj *r, obj *sp, obj *hp, const char **mod)
{
const char **ent;
/* make sure we are called in a clean vm state */
assert(r == cxg_regs); assert(sp-r == VM_REGC); /* k, ra (for temp use) */
/* go over module entries and install/execute */
for (ent = mod; ent[0] != NULL || ent[1] != NULL; ent += 2) {
const char *name = ent[0], *data = ent[1];
/* fprintf(stderr, "## initializing: %s\n%s\n", name?name:"NULL", data); */
if (name != 0 && name[0] == 'S' && name[1] == 0) {
/* 'syntax' entry: skip prefix */
ent += 1; name = ent[0], data = ent[1];
assert(name != 0); assert(data != 0);
} else if (name != 0 && name[0] == 'C' && name[1] == 0) {
/* 'command' entry: skip prefix */
ent += 1; name = ent[0], data = ent[1];
assert(name == 0); assert(data != 0);
} else if (name != 0 && name[0] == 'P' && name[1] == 0) {
/* 'procedure' entry: make closure and install */
ent += 1; name = ent[0], data = ent[1];
assert(name != 0); assert(data != 0);
/* install code */
ra = mksymbol(internsym((char*)name));
hp = rds_global_loc(r, sp, hp); /* ra->ra */
spush(ra); assert(isbox(ra));
ra = mkiport_string(sp-r, sialloc((char*)data, NULL));
hp = rds_seq(r, sp, hp); /* ra=port => ra=revcodelist/eof */
if (!iseof(ra)) hp = revlist2vec(r, sp, hp); /* ra => ra */
if (!iseof(ra)) hp = close0(r, sp, hp); /* ra => ra */
if (!iseof(ra)) boxref(spop()) = ra;
continue;
} else if (name != 0 && name[0] == 'A' && name[1] == 0) {
/* 'alias' entry: copy transformer */
obj oldsym, sym, oldbnd, oldden, bnd, al;
struct intgtab_entry *pe;
ent += 1; name = ent[0], data = ent[1];
assert(name != 0); assert(data != 0);
/* look for dst binding (we allow redefinition) */
oldsym = mksymbol(internsym((char*)data));
sym = mksymbol(internsym((char*)name));
for (oldbnd = 0, al = cx__2Atransformers_2A; al != mknull(); al = cdr(al)) {
obj ael = car(al);
if (car(ael) != oldsym) continue;
oldbnd = ael; break;
}
oldden = oldbnd ? cdr(oldbnd) : 0;
/* missing binding could be an auto-installed integrable */
if (!oldden && (pe = lookup_integrable(getsymbol(oldsym)))) {
oldden = mkintegrable(pe);
}
/* we should have it now */
assert(oldden); if (!oldden) continue;
/* look for existing binding (we allow redefinition) */
for (bnd = 0, al = cx__2Atransformers_2A; al != mknull(); al = cdr(al)) {
obj ael = car(al);
if (car(ael) != sym) continue;
bnd = ael; break;
}
/* or add new binding */
spush(oldden); /* protect from gc */
if (!bnd) { /* acons (sym . #f) */
hreserve(pairbsz()*2, sp-r);
*--hp = obj_from_bool(0); *--hp = sym;
bnd = hend_pair();
*--hp = cx__2Atransformers_2A; *--hp = bnd;
cx__2Atransformers_2A = hend_pair();
}
cdr(bnd) = spop(); /* oldden */
continue;
} else if (name != 0 && name[0] == 'K' && name[1] == 0) {
/* special entry for cx_continuation_2Dadapter_2Dcode */
ent += 1; name = ent[0], data = ent[1];
assert(name == 0); assert(data != 0);
ra = mkiport_string(sp-r, sialloc((char*)data, NULL));
hp = rds_seq(r, sp, hp); /* ra=port => ra=revcodelist/eof */
if (!iseof(ra)) hp = revlist2vec(r, sp, hp); /* ra => ra */
assert(!iseof(ra));
cx_continuation_2Dadapter_2Dcode = ra;
continue;
}
/* skipped prefix or no prefix */
if (name != NULL) {
/* install sexp-encoded syntax-rules as a transformer */
obj sym = mksymbol(internsym((char*)name));
obj al = cx__2Atransformers_2A, bnd = mknull();
assert(ispair(al)); /* basic transformers already installed */
/* look for existing binding (we allow redefinition) */
while (al != mknull()) {
obj ael = car(al);
if (car(ael) != sym) { al = cdr(al); continue; }
bnd = ael; break;
}
/* or add new binding */
if (bnd == mknull()) { /* acons (sym . #f) */
hreserve(pairbsz()*2, sp-r);
*--hp = obj_from_bool(0); *--hp = sym;
bnd = hend_pair();
*--hp = cx__2Atransformers_2A; *--hp = bnd;
cx__2Atransformers_2A = hend_pair();
}
/* sexp-decode data into the cdr of the binding */
spush(bnd); /* protect from gc */
ra = mkiport_string(sp-r, sialloc((char*)data, NULL));
hp = rds_sexp(r, sp, hp); /* ra=port => ra=sexp/eof */
bnd = spop();
assert(ispair(bnd) && (ispair(ra) || issymbol(ra)));
cdr(bnd) = ra;
} else {
/* execute code-encoded thunk */
obj *ip;
#ifdef VM_AC_IN_REG
obj ac;
#endif
ra = mkiport_string(sp-r, sialloc((char*)data, NULL));
hp = rds_seq(r, sp, hp); /* ra=port => ra=revcodelist/eof */
if (!iseof(ra)) hp = revlist2vec(r, sp, hp); /* ra => ra */
if (!iseof(ra)) hp = close0(r, sp, hp); /* ra => ra */
assert(!iseof(ra));
/* ra is a thunk closure to execute */
rd = ra;
ra = obj_from_fixnum(0); /* argc, shadow ac */
rx = obj_from_fixnum(0); /* shadow ip */
rs = obj_from_fixnum(VM_REGC); /* sp */
rz = (obj)(r + VM_STACK_GSZ); /* sp red zone */
do { /* unwindi trampoline */
reload_ac(); /* ra => ac */
reload_ip(); /* rd/rx => ip */
reload_sp(); /* rs => sp */
hp = (ins_from_obj(*ip))(IARGS1);
} while (trampcnd());
/* r[0] = k, r[1] = random result */
assert(r == cxg_regs);
sp = r + VM_REGC;
}
}
return hp;
}
/* partially hand-coded module (prototyped in i.scm) */
char *i_code[] = {
/* initialize current port variables */
"C", 0,
"P10Psi" "P11Pso" "P12Pse",
/* internal continuation switch code */
"P", "%dynamic-state-reroot!",
"%1.0,,#0.0,&1{%1.0,yq~?{${.2d,:0^[01}.0ad,.1aa,y,.1,.3c,.1sa.3,.1sdf,."
"4san,.4sd.3sy_1.0[30}]1}.!0.0^_1[11",
/* code for dynamic-wind's internal lambda is modified as follows:
* , save argc by pushing it on top of args in stack
* ${ push new frame for return from %dynamic-state-reroot!
* :0 get 'here' dynamic state from internal lambda's display
* , put it on the stack for dynamic-state-reroot!
* @(y22:%25dynamic-state-reroot!) get the d-s-r! procedure
* [01 call it with 1 argument ('here' dynamic state)
* } we will return here when d-s-r! is finished
* _! pop saved argc from stack into ac register
* K6 use sdmv opcode to return args from the lambda
* also, %x procedure checks inserted for early error detection
*/
"P", "dynamic-wind",
"%3y,${.2,.6%x,.5%xcc,@(y22:%25dynamic-state-reroot!)[01}.0,&1{,${:0,@("
"y22:%25dynamic-state-reroot!)[01}_!K6},.3,@(y16:call-with-values)[42",
/* code for the continuation adapter:
* k! first attempt; does not return if nothing to un/re-wind
* , save argc by pushing it on top of args in stack
* ${ push new frame for return from %dynamic-state-reroot!
* :0 get old dynamic state from continuation's display
* , put it on the stack for dynamic-state-reroot!
* @(y22:%25dynamic-state-reroot!) get the d-s-r! procedure
* [01 call it with 1 argument (old dynamic state)
* } we will return here when d-s-r! is finished
* _! pop saved argc from stack; we are ready to retry
* k! retry; should not return this time
* %% signal an (argument?) error if we return ?? */
"K", 0,
"k!,${:0,@(y22:%25dynamic-state-reroot!)[01}_!k!%%",
0, 0, 0
};
/* protects registers from r to sp=r+2; returns new hp */
static obj *init_modules(obj *r, obj *sp, obj *hp)
{
extern char* i_code[]; /* i.c */
extern char* s_code[]; /* s.c */
extern char* t_code[]; /* t.c */
hp = init_module(r, sp, hp, (const char **)i_code);
hp = init_module(r, sp, hp, (const char **)s_code);
hp = init_module(r, sp, hp, (const char **)t_code);
return hp;
}