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Author	SHA1	Message	Date
Matthew Berry	493d8b74f6	remove constant ranges from bus, redesign mem map lookups ... Turns out constants in Crystal are slow as _hell_. Thanks Ary for the help discovering that. Maybe one day Crystal will improve that, but for now this change over triples performance.	2020-10-04 16:10:34 -07:00
Matthew Berry	800bf36803	remove hot .to_u8 call in bus, add fps to display title	2020-10-04 00:18:23 -07:00
Matthew Berry	7795000cac	thumb fix setting reg in high reg branch exchange	2020-10-03 14:55:25 -07:00
Matthew Berry	0177822cfc	thumb load/store sign extended	2020-10-03 14:33:07 -07:00
Matthew Berry	63a57e07ab	thumb sp-relative load/store	2020-10-03 00:54:07 -07:00
Matthew Berry	f1058e3450	thumb add offset to stack pointer	2020-10-03 00:10:58 -07:00
Matthew Berry	7228a50427	loop cpu forever, make cpu tick other components	2020-10-03 00:00:00 -07:00
Matthew Berry	fc9f3d3035	very basic ppu, passing tonc first.gba	2020-10-02 23:30:14 -07:00
Matthew Berry	b25d941d0f	thumb unconditional branch	2020-10-02 23:13:59 -07:00
Matthew Berry	67c58e5f2b	vram writes	2020-10-02 00:00:21 -07:00
Matthew Berry	1d148c3ea7	thumb load/store halfword, add halfword type, add halfword write	2020-10-01 22:20:03 -07:00
Matthew Berry	b830b97687	ppu writes to dispcnt	2020-09-30 22:19:43 -07:00
Matthew Berry	843fb155df	fix thumb add not setting value, rename var in thumb multiple load/store	2020-09-30 22:03:33 -07:00
Matthew Berry	4194dfb6fd	fix word writes, fix register list in thumb push/pop, fix thumb push/pop stack pointer decrement	2020-09-30 22:01:55 -07:00
Matthew Berry	27b0a4e4ce	thumb only clear pipeline when branching	2020-09-30 00:01:36 -07:00
Matthew Berry	e4d98a3970	thumb long branch offset is signed	2020-09-30 00:00:09 -07:00
Matthew Berry	f230348f75	thumb push/pop registers	2020-09-29 00:17:46 -07:00
Matthew Berry	cf310896b1	abstract addition, set carry/overflow flags for addition	2020-09-28 23:33:38 -07:00
Matthew Berry	21ae86e2ff	thumb load/store immediate offset	2020-09-28 22:46:28 -07:00
Matthew Berry	e7664c5796	thumb high register branch	2020-09-28 22:28:46 -07:00
Matthew Berry	3ad9f6d8df	patch check_cond abstraction, now works properly with thumb and arm	2020-09-28 00:13:47 -07:00
Matthew Berry	116058472c	abstract subtraction, set carry/overflow flags for subtraction	2020-09-28 00:12:47 -07:00
Matthew Berry	15433454a4	allow writes to wram board/chip	2020-09-27 23:39:18 -07:00
Matthew Berry	d62bfecacf	thumb multiple load store	2020-09-27 23:33:13 -07:00
Matthew Berry	ac7e3bbe72	thumb alu operations	2020-09-27 23:32:14 -07:00
Matthew Berry	7820e69eb6	thumb actually check the condition...	2020-09-27 22:41:54 -07:00
Matthew Berry	0ec726cfbe	thumb add/subtract	2020-09-27 22:41:02 -07:00
Matthew Berry	3471a8b34c	thumb long branch	2020-09-27 20:06:47 -07:00
Matthew Berry	99bdf3ec86	thumb move/compare/add/subtract, fix thumb conditional branch bug	2020-09-27 19:55:47 -07:00
Matthew Berry	7d8e2dccef	set carry flag from barrel shifter ops (arm & thumb)	2020-09-27 18:12:04 -07:00
Matthew Berry	8e6040e4c4	thumb conditional branch, fix reg rotation, thumb/arm abstraction	2020-09-27 17:51:17 -07:00
Matthew Berry	55589ea0b0	thumb move shifted register (- carry flag) ... diverges from armwrestler here bc of carry flag	2020-09-27 17:00:21 -07:00
Matthew Berry	eb5d932579	thumb pc relative load	2020-09-27 16:58:22 -07:00
Matthew Berry	cbc140b7c4	basic thumb template	2020-09-27 16:14:17 -07:00
Matthew Berry	9eca952a78	arm branch exchange impl	2020-09-27 14:44:32 -07:00
Matthew Berry	e238d297cc	fix register reads in data processing instrs	2020-09-27 13:54:49 -07:00
Matthew Berry	09b8876b73	early psr transfer implementation	2020-09-27 13:51:17 -07:00
Matthew Berry	4b745a075a	basic single data transfer impl	2020-09-27 00:41:25 -07:00
Matthew Berry	df79b7b48b	data processing logical flags, minor rotate_register patch, abstract immediate_offset	2020-09-26 21:47:00 -07:00
Matthew Berry	64c8b26fb8	update bits macro to call methods on RangeLiteral rather than Range	2020-09-26 18:08:44 -07:00
Matthew Berry	2a0aac031b	fix logging and unused opcodes in lut	2020-09-25 20:57:19 -07:00
Matthew Berry	e9a1acb52a	move cpsr onto new bitfield implementation	2020-09-23 08:21:56 -07:00
Matthew Berry	e94754ca06	initial minimum readme information	2020-09-17 23:55:34 -07:00
Matthew Berry	b026160553	move instr lookup to lookup table, move instrs into module across files	2020-09-16 22:54:15 -07:00
Matthew Berry	ea5322b0fa	pulled out register rotation since it seems like that'll need to be abstracted	2020-09-15 22:57:01 -07:00
Matthew Berry	238076dda3	default regs, log/trace macros, print mgba-style state	2020-09-14 23:28:50 -07:00
Matthew Berry	fbacc2cf9f	make bitfields macros instead of function calls	2020-09-13 17:07:14 -07:00
Matthew Berry	eafe206b06	cleanup, shifts, and some data processing w/o flags	2020-09-01 00:04:27 -07:00
Matthew Berry	2ef9b87cd6	check condition before executing instruction	2020-08-24 23:21:52 -07:00
Matthew Berry	f004c0f461	branching and basic instr pipeline	2020-08-22 15:17:58 -07:00