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https://github.com/remko/waforth
synced 2024-12-27 09:59:29 +01:00
Simplify emit instructions
This commit is contained in:
Remko Tronçon
parent
f8c8cf35f7
commit
caf1f31451
1 changed files with 40 additions and 128 deletions
164
src/waforth.wat
164
src/waforth.wat
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@ -2389,153 +2389,65 @@
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(func $emitICall (param $type i32) (param $n i32)
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(call $emitConst (local.get $n))
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(i32.store8 (global.get $cp) (i32.const 0x11))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(i32.store8 (global.get $cp) (local.get $type))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(i32.store8 (global.get $cp) (i32.const 0x00))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(global.set $lastEmitWasGetTOS (i32.const 0)))
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(func $emitBlock
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(i32.store8 (global.get $cp) (i32.const 0x02))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(i32.store8 (global.get $cp) (i32.const 0x00)) ;; Block type
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(global.set $lastEmitWasGetTOS (i32.const 0)))
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(func $emitLoop
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(i32.store8 (global.get $cp) (i32.const 0x03))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(i32.store8 (global.get $cp) (i32.const 0x00)) ;; Block type
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(global.set $lastEmitWasGetTOS (i32.const 0)))
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(func $emitConst (param $n i32)
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(i32.store8 (global.get $cp) (i32.const 0x41))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(global.set $cp (call $leb128 (global.get $cp) (local.get $n)))
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(global.set $lastEmitWasGetTOS (i32.const 0)))
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(func $emitIf
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(i32.store8 (global.get $cp) (i32.const 0x04))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(i32.store8 (global.get $cp) (i32.const 0x00)) ;; Block type
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(global.set $lastEmitWasGetTOS (i32.const 0)))
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(func $emitElse
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(i32.store8 (global.get $cp) (i32.const 0x05))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(global.set $lastEmitWasGetTOS (i32.const 0)))
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(func $emitEnd
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(i32.store8 (global.get $cp) (i32.const 0x0b))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(global.set $lastEmitWasGetTOS (i32.const 0)))
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(func $emitBr (param $n i32)
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(i32.store8 (global.get $cp) (i32.const 0x0c))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(i32.store8 (global.get $cp) (local.get $n))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(global.set $lastEmitWasGetTOS (i32.const 0)))
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(func $emitBrIf (param $n i32)
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(i32.store8 (global.get $cp) (i32.const 0x0d))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(i32.store8 (global.get $cp) (local.get $n))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(global.set $lastEmitWasGetTOS (i32.const 0)))
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(call $emit2 (i32.const 0x11) (local.get $type) (i32.const 0x0)))
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(func $emitBlock (call $emit1 (i32.const 0x02) (i32.const 0x0 (; block type ;))))
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(func $emitLoop (call $emit1 (i32.const 0x03) (i32.const 0x0 (; block type ;))))
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(func $emitConst (param $n i32) (call $emit1v (i32.const 0x41) (local.get $n)))
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(func $emitIf (call $emit1 (i32.const 0x04) (i32.const 0x0 (; block type ;))))
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(func $emitElse (call $emit0 (i32.const 0x05)))
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(func $emitEnd (call $emit0 (i32.const 0x0b)))
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(func $emitBr (param $n i32) (call $emit1 (i32.const 0x0c) (local.get $n)))
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(func $emitBrIf (param $n i32) (call $emit1 (i32.const 0x0d) (local.get $n)))
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(func $emitSetLocal (param $n i32)
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(i32.store8 (global.get $cp) (i32.const 0x21))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(global.set $cp (call $leb128 (global.get $cp) (local.get $n)))
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(call $emit1v (i32.const 0x21) (local.get $n))
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(global.set $lastEmitWasGetTOS (i32.eqz (local.get $n))))
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(func $emitGetLocal (param $n i32)
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(if (i32.or (i32.ne (local.get $n) (i32.const 0)) (i32.eqz (global.get $lastEmitWasGetTOS)))
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(then
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(i32.store8 (global.get $cp) (i32.const 0x20))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(global.set $cp (call $leb128 (global.get $cp) (local.get $n))))
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(call $emit1v (i32.const 0x20) (local.get $n)))
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(else
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;; In case we have a TOS get after a TOS set, replace the previous one with tee.
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;; Doesn't seem to have much of a performance impact, but this makes the code a little bit shorter,
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;; and easier to step through.
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(i32.store8 (i32.sub (global.get $cp) (i32.const 2)) (i32.const 0x22))))
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(global.set $lastEmitWasGetTOS (i32.const 0)))
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(func $emitTeeLocal (param $n i32) (call $emit1v (i32.const 0x22) (local.get $n)))
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(func $emitAdd (call $emit0 (i32.const 0x6a)))
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(func $emitSub (call $emit0 (i32.const 0x6b)))
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(func $emitXOR (call $emit0 (i32.const 0x73)))
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(func $emitEqualsZero (call $emit0 (i32.const 0x45)))
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(func $emitEqual (call $emit0 (i32.const 0x46)))
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(func $emitNotEqual (call $emit0 (i32.const 0x47)))
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(func $emitGreaterEqualSigned (call $emit0 (i32.const 0x4e)))
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(func $emitLesserSigned (call $emit0 (i32.const 0x48)))
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(func $emitReturn (call $emit0 (i32.const 0x0f)))
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(func $emitStore (call $emit2 (i32.const 0x36) (i32.const 0x02 (; align ;)) (i32.const 0x00 (; offset ;))))
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(func $emitLoad (call $emit2 (i32.const 0x28) (i32.const 0x02 (; align ;)) (i32.const 0x00 (; offset ;))))
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(func $emitTeeLocal (param $n i32)
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(i32.store8 (global.get $cp) (i32.const 0x22))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(global.set $cp (call $leb128 (global.get $cp) (local.get $n)))
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(func $emit0 (param $op i32)
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(call $emit (local.get $op))
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(global.set $lastEmitWasGetTOS (i32.const 0)))
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(func $emitAdd
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(i32.store8 (global.get $cp) (i32.const 0x6a))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(func $emit1v (param $op i32) (param $i1 i32)
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(call $emit (local.get $op))
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(global.set $cp (call $leb128 (global.get $cp) (local.get $i1)))
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(global.set $lastEmitWasGetTOS (i32.const 0)))
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(func $emitSub
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(i32.store8 (global.get $cp) (i32.const 0x6b))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(func $emit1 (param $op i32) (param $i1 i32)
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(call $emit (local.get $op))
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(call $emit (local.get $i1))
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(global.set $lastEmitWasGetTOS (i32.const 0)))
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(func $emitXOR
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(i32.store8 (global.get $cp) (i32.const 0x73))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(func $emit2 (param $op i32) (param $i1 i32) (param $i2 i32)
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(call $emit (local.get $op))
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(call $emit (local.get $i1))
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(call $emit (local.get $i2))
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(global.set $lastEmitWasGetTOS (i32.const 0)))
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(func $emitEqualsZero
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(i32.store8 (global.get $cp) (i32.const 0x45))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(global.set $lastEmitWasGetTOS (i32.const 0)))
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(func $emit (param $v i32)
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(i32.store8 (global.get $cp) (local.get $v))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1))))
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(func $emitEqual
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(i32.store8 (global.get $cp) (i32.const 0x46))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(global.set $lastEmitWasGetTOS (i32.const 0)))
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(func $emitNotEqual
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(i32.store8 (global.get $cp) (i32.const 0x47))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(global.set $lastEmitWasGetTOS (i32.const 0)))
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(func $emitGreaterEqualSigned
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(i32.store8 (global.get $cp) (i32.const 0x4e))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(global.set $lastEmitWasGetTOS (i32.const 0)))
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(func $emitLesserSigned
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(i32.store8 (global.get $cp) (i32.const 0x48))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(global.set $lastEmitWasGetTOS (i32.const 0)))
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(func $emitReturn
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(i32.store8 (global.get $cp) (i32.const 0x0f))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(global.set $lastEmitWasGetTOS (i32.const 0)))
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(func $emitStore
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(i32.store8 (global.get $cp) (i32.const 0x36))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(i32.store8 (global.get $cp) (i32.const 0x02)) ;; Alignment
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(i32.store8 (global.get $cp) (i32.const 0x00)) ;; Offset
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(global.set $lastEmitWasGetTOS (i32.const 0)))
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(func $emitLoad
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(i32.store8 (global.get $cp) (i32.const 0x28))
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(i32.store8 (global.get $cp) (i32.const 0x02)) ;; Alignment
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(i32.store8 (global.get $cp) (i32.const 0x00)) ;; Offset
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(global.set $cp (i32.add (global.get $cp) (i32.const 1)))
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(global.set $lastEmitWasGetTOS (i32.const 0)))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Compilation state
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