160 Commits

Author SHA1 Message Date
cbd085c25b chore: use Default::default instead of Type::Default 2021-04-13 23:02:13 -05:00
e9f129dbee fix(ppu): move frame/pixel buffer from the stack to the heap 2021-04-13 22:55:11 -05:00
12a51b115a feat(ppu): reimplement ppu as fifo pixel renderer 2021-04-11 02:07:25 -05:00
5931fe95e3 feat(ppu): implement (broken) sprite renderer 2021-04-09 00:35:41 -05:00
7425384fb1 chore: convert select base 10 constants to base 16 2021-04-08 20:32:32 -05:00
770b081f98 feat(ppu): stub sprite attribute table 2021-04-08 20:28:30 -05:00
23de87e482 chore: remove panics when gameboy performs certain actions 2021-04-08 19:23:29 -05:00
41081e9cce feat(bus): implement echo RAM 2021-04-08 17:58:33 -05:00
2733bbe6d7 feat(ppu): implement window rendering 2021-04-08 17:10:24 -05:00
e2fa72aa0e chore: remove unecessary eprintln! statements 2021-04-08 00:02:54 -05:00
cf3b79f0dc chore(cpu): move RST behaviour to a method 2021-04-07 23:05:22 -05:00
0eb40a8109 feat: comply with the fourth individual blargg test rom 2021-04-07 22:37:33 -05:00
067ed03de3 feat: comply with test 03 of blargg's cpu_instrs test rom 2021-04-07 20:12:05 -05:00
6db132ad48 feat(cartridge): handle MBC-less games like tetris
TODO: This will panic whenever a write is attempted on the MBC-less
cartridge. This would be fine if games held the implicit rules given by
the hardware, however this is not the case. We will have to modify the
NoMBC implementation to ignore writes to the cartrige (while still
documenting them just in case of bugs)
2021-04-05 01:43:26 -05:00
823e4b1e0a chore: follow rust style guides 2021-04-05 01:40:26 -05:00
9b77d6c6c3 fix(cpu): ensure that timer, lcd and sound runs regardless of HALT 2021-04-05 01:20:18 -05:00
9d2fbd2427 chore: remove unecessary print statements 2021-04-05 01:20:03 -05:00
748c32c446 fix(cpu): use enums only of maintaining IME register state 2021-04-05 01:10:03 -05:00
77c7c610d0 chore(cpu): rename ImeSet to ImeEnabled 2021-04-05 00:53:46 -05:00
a15a6a25b6 feat(cpu): properly implement EI instruction 2021-04-05 00:52:12 -05:00
62bd88945f chore: rename a couple of interrupt instances to "int" instead of
"interrupt"
2021-04-04 01:52:53 -05:00
7c9bff61f6 fix(ppu): add missing check for enabled interrupt 2021-04-04 01:50:49 -05:00
777abd1c10 chore: rename some symbols 2021-04-04 01:31:31 -05:00
4dd7a0d9ce chore: fix several clippy warnings 2021-04-04 01:19:39 -05:00
cb1bcdb859 feat(cpu): implement DAA instruction 2021-04-04 01:03:44 -05:00
25e44f3e49 chore: fix condition when logs are printed 2021-03-27 15:07:17 -05:00
2b05571c49 chore: rename Cycles newtype to Cycle 2021-03-27 12:10:18 -05:00
bce14348f8 feat: enable halt and rework timer registers 2021-03-27 11:56:47 -05:00
2bf877d1ec fix(cpu): Ensure mask the high bits of the flag register
There was a bug where POP AF returned 0x1301. In this example, the A
register would be set to 0x13, and the Flag register woud be set to
0x01, which is an invalid state considering only bits 4 -> 7 of the flag
register are used. This commit masks the flag register with & 0xF0
whenever it is read or written to so that we can ensure that only the
high bits can ever be potentially set
2021-03-26 20:25:30 -05:00
15781b3d5a fix(instructions): correct the flags being set in ADD HL, r16 2021-03-26 20:19:48 -05:00
a6d5553035 fix(cartridge): reimplement apply_rom_size_bitmask 2021-03-26 20:18:49 -05:00
a82e3d3372 feat: implement HALT behaviour
note: while the logic is there, the instruction currently does not do
anything because we don't halde it in Cpu::step(). The code that does is
currently commented out and there should be some underlying bugs still
present. Nevertheless it is a good start
2021-03-23 23:05:27 -05:00
c16f318fd1 fix: remove unnecessary allocation when loading boot rom 2021-03-23 21:21:18 -05:00
48ac8317a8 fix(bus): fix off by one error when reading from boot rom 2021-03-23 21:01:33 -05:00
e5fb07c4d1 chore: refactor parts of instruction.rs 2021-03-23 20:22:11 -05:00
501d93c37b chore: clean up code in one instruction 2021-03-23 18:21:59 -05:00
1b7d778c1d chore: clean up some instruction code 2021-03-23 02:11:40 -05:00
6f11640f24 chore: replace CALL instruction with RST in interrupt handler 2021-03-23 02:11:06 -05:00
342e6616ac chore: improve unreachable! and panic! error messages 2021-03-22 22:33:56 -05:00
2813b762dd chore: replace select unreachable! macros with todo! and unreachable! 2021-03-22 21:52:28 -05:00
9301a36682 chore: remove all unwraps from the project 2021-03-22 21:48:12 -05:00
45466a5733 feat: implement clap for cli and improve error messages 2021-03-22 21:41:22 -05:00
d7d9fd857f fix: squash bugs in cpu intrucion implementation 2021-03-21 21:16:23 -05:00
8a1540c9e9 fix: replaced unnecessary &mut self with &self 2021-03-21 19:56:38 -05:00
dc45688e4f feat: implement timers 2021-03-21 03:03:03 -05:00
4db6f1de6e chore: move LR35902_CLOCK_SPEED to lib.rs 2021-03-21 02:10:56 -05:00
b548610fdb chore: re-enable scrolling 2021-03-21 02:08:29 -05:00
fe586d77ac feat: stub 0xFF05 2021-03-21 02:01:19 -05:00
15da6cb7d2 fix: squash several bugs in MBC1 implementation 2021-03-21 01:52:29 -05:00
5a42d76f1e feat: implement LCDSTAT interrupt 2021-03-21 00:01:21 -05:00