Rekai Nyangadzayi Musuka
172a59aefb
feat: schedule audio sampling on scheduler
...
DMA sound in games like Pokemon Emerald, Chobits, Love Hina, and Kirby:
Nightmare in Dream Land sound great save for conerns about resampling
2022-04-14 05:58:32 -03:00
Rekai Nyangadzayi Musuka
92cabd248b
chore: improve timer behaviour
2022-04-14 01:58:40 -03:00
Rekai Nyangadzayi Musuka
6b09250a56
chore: move some init code to functions
2022-04-14 00:52:21 -03:00
Rekai Nyangadzayi Musuka
f6d746e810
feat: impelemt THUMB open bus
2022-04-14 00:21:49 -03:00
Rekai Nyangadzayi Musuka
9b9b6c0d6f
feat: implement ARM read open bus
2022-04-13 23:28:14 -03:00
Rekai Nyangadzayi Musuka
6d5c30ac25
fix: remove accidental rotation in ldrsh instructions
2022-04-13 22:59:32 -03:00
Rekai Nyangadzayi Musuka
c1b74d556a
chore: move log statement
2022-04-13 21:45:15 -03:00
Rekai Nyangadzayi Musuka
dfe94fb931
chore: remove magic numbers
2022-04-13 21:39:35 -03:00
Rekai Nyangadzayi Musuka
ffbb31c767
chore: remove unnecessary 32MB allocation
2022-04-13 21:25:41 -03:00
Rekai Nyangadzayi Musuka
714209565b
chore: define more I/O read/writes
2022-04-12 00:50:44 -03:00
Rekai Nyangadzayi Musuka
2c763e9772
feat: pass jsmolka memory.gba
2022-04-11 22:52:17 -03:00
Rekai Nyangadzayi Musuka
ad1f5ea8b8
chore: ignore instead of logging errors for perf reasons
2022-04-10 23:10:06 -03:00
Rekai Nyangadzayi Musuka
76b4d56ca6
feat: Initial Implementation of DMA Audio
2022-04-10 04:50:09 -03:00
Rekai Nyangadzayi Musuka
c100d64fcb
chore: tick scheduler on memory access
2022-04-09 19:43:27 -03:00
Rekai Nyangadzayi Musuka
5da84aff36
chore: log error on open bus in page 0x00 and 0x01
2022-04-09 18:01:17 -03:00
Rekai Nyangadzayi Musuka
76789aa8bc
chore: rewrite I/O read/writes
2022-04-08 17:07:36 -03:00
Rekai Nyangadzayi Musuka
80e714e2eb
chore: reimplement bus read/writes
2022-04-08 16:48:43 -03:00
Rekai Nyangadzayi Musuka
37a360ec07
fix: force align reads/writes in memory bus rather than in CPU
2022-04-08 15:17:31 -03:00
Rekai Nyangadzayi Musuka
a976a5769e
fix: pass none.gba and kind of sram.gba from jsmolka test suite
2022-04-08 14:38:35 -03:00
Rekai Nyangadzayi Musuka
6df55c2d86
feat: implement GamePak out-of-bounds reads
2022-04-08 02:34:08 -03:00
Rekai Nyangadzayi Musuka
a1008738d2
chore: run zigfmt
2022-04-08 02:13:58 -03:00
Rekai Nyangadzayi Musuka
11a034658a
chore: change implementation of rotr
2022-04-08 02:13:41 -03:00
Rekai Nyangadzayi Musuka
aac01b0bfe
chore: rewrite read/write methods for remainig Bus devices
2022-04-08 02:08:26 -03:00
Rekai Nyangadzayi Musuka
5310c12669
chore: mirror VRAM
2022-04-08 01:10:12 -03:00
Rekai Nyangadzayi Musuka
9b9de11e0c
chore: write generic read/write for VRAM
2022-04-08 00:44:52 -03:00
Rekai Nyangadzayi Musuka
f8018854be
Merge branch 'main' of ssh://musuka.dev:2222/paoda/zba
2022-04-07 17:23:22 -03:00
Rekai Nyangadzayi Musuka
fae4b430ab
chore: update dependencies
2022-04-07 17:23:07 -03:00
Rekai Nyangadzayi Musuka
3046e6243a
chore: don't assume 1cpi when stepping by a frame
2022-03-29 09:06:26 -03:00
Rekai Nyangadzayi Musuka
e127669549
Revert "chore: tick on memory access instead of 1cpi"
...
This reverts commit 7f555095f2
2022-03-29 08:58:57 -03:00
Rekai Nyangadzayi Musuka
7f555095f2
chore: tick on memory access instead of 1cpi
2022-03-29 08:50:12 -03:00
Rekai Nyangadzayi Musuka
29da7b294e
feat: implement Flash backup cartrige kinds
2022-03-28 19:41:22 -03:00
Rekai Nyangadzayi Musuka
bf7b533b3c
chore: stub more apu I/O addresses
2022-03-28 19:40:47 -03:00
Rekai Nyangadzayi Musuka
37c039fb92
fix: don't create un-needed save file
...
If we don't know if we support a game's save type yet, avoid
creating a file for it.
2022-03-22 15:03:05 -03:00
Rekai Nyangadzayi Musuka
4c172cff70
fix: account for subset of disallowed chars in save file names
2022-03-22 14:55:08 -03:00
Rekai Nyangadzayi Musuka
bd54cba8a0
feat: implement SRAM saving and loading
2022-03-22 14:41:18 -03:00
Rekai Nyangadzayi Musuka
da4bb17782
chore: properly deallocate OAM buffer
2022-03-22 11:41:17 -03:00
Rekai Nyangadzayi Musuka
5dd69500ca
fix: speed percentage in title is now accurate
...
We now properly account for full speed being 59.97Hz not, 59Hz or 60Hz
2022-03-22 10:39:42 -03:00
Rekai Nyangadzayi Musuka
eff25a0ab2
chore: make some variables const
2022-03-19 02:00:53 -03:00
Rekai Nyangadzayi Musuka
1901a471e4
feat: minor performance improvements
2022-03-18 09:49:49 -03:00
Rekai Nyangadzayi Musuka
3d61c0dba4
feat: switch from BGR555 to RGBA8888
2022-03-18 07:52:54 -03:00
Rekai Nyangadzayi Musuka
39ab363afa
fix: improve perf of instructions w/ rotr
2022-03-16 22:56:37 -03:00
Rekai Nyangadzayi Musuka
1921218c7b
fix: improve frame limiting and fps counting
2022-03-16 21:25:32 -03:00
Rekai Nyangadzayi Musuka
40968f0990
fix: implement proper SRAM mirroring and stub Flash
2022-03-15 21:54:55 -03:00
Rekai Nyangadzayi Musuka
04d54ec97a
chore: move DMA and Timers from io to bus
2022-03-15 08:25:26 -03:00
Rekai Nyangadzayi Musuka
1fd80c1c23
feat: define APU registers
2022-03-15 08:09:07 -03:00
Rekai Nyangadzayi Musuka
48679fa4ca
fix: move code in scheduler to ppu
2022-03-15 08:09:07 -03:00
Rekai Nyangadzayi Musuka
bdea19f280
chore: create different types of emuloops
2022-03-15 03:46:33 -03:00
Rekai Nyangadzayi Musuka
5579643d65
fix: resolve relative sprite priority issues
2022-03-15 00:37:29 -03:00
Rekai Nyangadzayi Musuka
c6e6b42869
chore: improve accuracy of frame limiter
2022-03-14 20:38:29 -03:00
Rekai Nyangadzayi Musuka
3623362f72
chore: improve accuracy of thread sleep in emu thread
2022-03-14 08:54:48 -03:00
Rekai Nyangadzayi Musuka
c538079ad4
feat: implement video sync
2022-03-14 05:16:02 -03:00
Rekai Nyangadzayi Musuka
8e3f48837d
chore: organize io switch statements
2022-03-13 07:50:19 -03:00
Rekai Nyangadzayi Musuka
025f295c08
fix: mirror SRAM
...
SRAM is mirrored in 64K chunks
TODO: According to GBATEK SRAM chips are 32K and mirrored
2022-03-13 05:53:32 -03:00
Rekai Nyangadzayi Musuka
017ec407f5
chore: don't panic on unknown bus and io writes/reads
...
This will lead to emulation bugs due to devices I've yet to implement but by
doing this a lot of games become playable "by default" such as Doom or
Kirby: Nightmare in Dream Land.
When implementing feature and/or debuggin make sure to set:
panic_on_und_bus and panic_on_und_io to true so that the emu crashes
on unknown reads/writes
2022-03-13 05:39:09 -03:00
Rekai Nyangadzayi Musuka
4a76611fca
feat: implement Timers
2022-03-13 05:35:01 -03:00
Rekai Nyangadzayi Musuka
cb10dfbdfd
fix: implement sprite coord overflow behaviour
2022-03-12 03:46:41 -04:00
Rekai Nyangadzayi Musuka
0c50ef1e6d
fix: resolve issues with sprite mirroring
2022-03-11 23:52:56 -04:00
Rekai Nyangadzayi Musuka
05e67da181
feat: Implement MVP of Mode 0 Sprites
2022-03-11 01:43:47 -04:00
Rekai Nyangadzayi Musuka
f1df3d6615
chore: clean up io
2022-03-04 22:55:04 -04:00
Rekai Nyangadzayi Musuka
c5b4b51ae0
feat: fix tile flipping issue
2022-03-03 03:08:35 -04:00
Rekai Nyangadzayi Musuka
2e4854c2ff
chore: add some type definitions for sprites
2022-03-03 02:10:33 -04:00
Rekai Nyangadzayi Musuka
85f0b13f4a
feat: improve DMA Transfer support
2022-03-03 02:10:29 -04:00
Rekai Nyangadzayi Musuka
dccd00782b
chore(ppu): resolve integer overflow regression
2022-03-02 23:15:10 -04:00
Rekai Nyangadzayi Musuka
3d8c944bcc
feat(ppu): implement bg priority and transparency
2022-03-02 01:39:05 -04:00
Rekai Nyangadzayi Musuka
cb4d3a9a51
chore: replace unnecessarily complex sign extension implementation
2022-02-28 20:38:50 -04:00
Rekai Nyangadzayi Musuka
ddb68a7952
feat: pass beeg yoshi
2022-02-28 18:24:24 -04:00
Rekai Nyangadzayi Musuka
97de5d1a96
fix: palette id is a u16 not a u8
2022-02-28 17:32:10 -04:00
Rekai Nyangadzayi Musuka
d6ef53fd67
feat: DMA Transfer MVP
2022-02-28 12:34:00 -06:00
Rekai Nyangadzayi Musuka
b65f833b28
feat(ppu): implement transparency + backdrop in mode 0
2022-02-26 18:33:16 -06:00
Rekai Nyangadzayi Musuka
ac0486be1b
chore(io): replace some bitfields with enums
2022-02-24 17:20:23 -06:00
Rekai Nyangadzayi Musuka
441ebc38c7
fix: better emulate behaviour of IO reads
2022-02-24 17:20:20 -06:00
Rekai Nyangadzayi Musuka
be2dfb379a
chore: document select unimplmented I/O registers
...
These registers are written to / read from Kirby: Nightmare in Dream Land
2022-02-22 17:14:30 -06:00
Rekai Nyangadzayi Musuka
bc66be6c06
feat: impelement a barebones SRAM
2022-02-22 17:14:26 -06:00
Rekai Nyangadzayi Musuka
5368ff912d
feat: pass retAddr.gba
2022-02-21 15:34:46 -06:00
Rekai Nyangadzayi Musuka
c2cf2d2965
feat: implement Hblank and Vcount Interrupts
...
Also implemented unique behaviour when writing to IF
2022-02-21 14:45:47 -06:00
Rekai Nyangadzayi Musuka
e5ab8b51a9
chore: improve Bus log + panic messages
2022-02-19 11:48:43 -05:00
Rekai Nyangadzayi Musuka
c767e88e8d
chore: improve io.zig
2022-02-19 11:48:17 -05:00
Rekai Nyangadzayi Musuka
9e2e8c3d1a
feat: implement mirroring for IWRAM EWRAM, OAM and PALRAM
...
Also realized I confused IWRAM and EWRAM. This is also fixed
TODO: Implemnt Mirroring for VRRAM
2022-02-19 10:08:31 -05:00
Rekai Nyangadzayi Musuka
e426f2459e
fix: resolve integer overflow in BG0 Drawing
2022-02-19 06:55:30 -04:00
Rekai Nyangadzayi Musuka
3746cf6025
chore: don't panic on 32-bit I/O
2022-02-19 06:45:39 -04:00
Rekai Nyangadzayi Musuka
f6c8d7ca07
chore: stub CPU HALTing
2022-02-17 00:27:34 -04:00
Rekai Nyangadzayi Musuka
07343efdf3
chore: correct logic errors in map size 1 and 3
2022-02-16 23:49:08 -04:00
Rekai Nyangadzayi Musuka
4018f3875b
chore: properly write to VOFS and HOFS in 32-bit bus
2022-02-16 23:23:41 -04:00
Rekai Nyangadzayi Musuka
034f2e8d1d
feat: implement hofs and vofs on io bus
2022-02-16 04:29:04 -04:00
Rekai Nyangadzayi Musuka
d275a4890f
feat: implement scrolling
2022-02-16 03:37:25 -04:00
Rekai Nyangadzayi Musuka
ce97a52868
feat: add support for multiple BGs in Mode 0
2022-02-16 03:27:06 -04:00
Rekai Nyangadzayi Musuka
d2d4667f7b
feat: document mode 0
2022-02-16 03:05:19 -04:00
Rekai Nyangadzayi Musuka
5835b509e4
feat: Mode 0 MVP
2022-02-16 02:27:15 -04:00
Rekai Nyangadzayi Musuka
338122ed43
chore: use zig slices for fun
2022-02-13 05:28:56 -04:00
Rekai Nyangadzayi Musuka
e5a76a3c02
chore: give DISPCNT DISPSTAT and VCOUNT to PPU struct
2022-02-13 04:28:15 -04:00
Rekai Nyangadzayi Musuka
31fa06ac4a
chore: give io read/write functions access to the entire Bus
2022-02-13 04:13:06 -04:00
Rekai Nyangadzayi Musuka
ec25a9aae4
feat: implement BG Scrolling Registers
2022-02-13 04:04:10 -04:00
Rekai Nyangadzayi Musuka
b238a3e8f3
feat: impelemnt BG0,1,2CNT and IF
2022-02-13 03:23:09 -04:00
Rekai Nyangadzayi Musuka
aca7fc9a60
feat: implement OAM
2022-02-13 02:30:02 -04:00
Rekai Nyangadzayi Musuka
d2740e30d9
chore: squash bugs preventing swi_demo.gba from working
2022-02-13 02:29:53 -04:00
Rekai Nyangadzayi Musuka
8ab7a178c1
chore(cpu): reimplement bank switching logic
2022-02-12 04:33:32 -04:00
Rekai Nyangadzayi Musuka
d897c2fdcc
fix: don't mask away MSB in THUMB.5 add
2022-02-12 03:23:55 -04:00
Rekai Nyangadzayi Musuka
783706193b
fix: properly decode format 11 instructions
2022-02-12 03:13:38 -04:00
Rekai Nyangadzayi Musuka
b93bd53529
chore: make use of scoped logging
2022-02-11 01:33:33 -04:00
Rekai Nyangadzayi Musuka
ee27053db3
chore: remove TODOs and some useless imports
2022-02-06 19:07:23 -04:00
Rekai Nyangadzayi Musuka
7441dd151c
fix: improper condition check and initialization of register
2022-02-06 18:41:16 -04:00
Rekai Nyangadzayi Musuka
bbd4447734
fix(cpu): force align thumb and arm block data transfers
2022-02-06 17:08:12 -04:00
Rekai Nyangadzayi Musuka
225c0f7d55
feat: pass arm.gba
2022-02-06 05:06:25 -04:00
Rekai Nyangadzayi Musuka
fcde905ae1
chore: reimplement ARM LDM/STM
2022-02-06 04:34:45 -04:00
Rekai Nyangadzayi Musuka
798987eba0
chore: improve arm ldm/stm
2022-02-05 23:29:34 -04:00
Rekai Nyangadzayi Musuka
adfd501fc4
fix(cpu): force-align SWP reads and writes
2022-02-05 23:18:23 -04:00
Rekai Nyangadzayi Musuka
9581e3b3cb
fix: force-align ARM STRH reads
2022-02-05 23:09:13 -04:00
Rekai Nyangadzayi Musuka
1b9ab1f1d7
fix: implement the same LDRSH logic as THUMB LDRSH
2022-02-05 23:09:02 -04:00
Rekai Nyangadzayi Musuka
c52dc5adb1
fix: PC is 12 ahead when it is rd in str and strb
2022-02-05 21:42:04 -04:00
Rekai Nyangadzayi Musuka
7bfb87a859
fix: listen to my past self
...
By deleting this line I go from test 234 to test 355 in arm.gba
2022-02-05 21:35:26 -04:00
Rekai Nyangadzayi Musuka
0aece06107
chore: dont use std.mem.bytesToValue
...
the stdlib accounts for endianness, which isn't something we want.
2022-02-05 21:05:08 -04:00
Rekai Nyangadzayi Musuka
2842345111
chore: remove unnecessary @as calls
2022-02-05 21:01:39 -04:00
Rekai Nyangadzayi Musuka
aa6f3c7a92
feat: pass thumb.gba
2022-02-05 20:39:15 -04:00
Rekai Nyangadzayi Musuka
3ae24d6977
chore: account for empty rlist in THUMB LDM/STM
2022-02-05 18:03:39 -04:00
Rekai Nyangadzayi Musuka
0a22730479
fix(cpu): handle edge case in LDRSH
2022-02-05 17:12:25 -04:00
Rekai Nyangadzayi Musuka
bf4207ba8c
chore: reorganize util.zig
2022-02-05 15:55:12 -04:00
Rekai Nyangadzayi Musuka
78080b4682
fix: zero initialize all allocated memory
2022-02-05 15:54:53 -04:00
Rekai Nyangadzayi Musuka
428eff1468
Revert "fix: allow for 32-bit reads to KEYINPUT"
...
This reverts commit 3a51707280
2022-02-05 14:52:49 -04:00
Rekai Nyangadzayi Musuka
5ec8d4b0a5
fix: resolve decoding mixup in THUMB format 8 instructions
2022-02-05 14:50:34 -04:00
Rekai Nyangadzayi Musuka
3a51707280
fix: allow for 32-bit reads to KEYINPUT
2022-02-05 13:47:05 -04:00
Rekai Nyangadzayi Musuka
b4d20fb264
chore: refactor ARMv4 decoding
2022-02-05 13:46:55 -04:00
Rekai Nyangadzayi Musuka
746158043d
chore: add more debug information to CPU panic method
2022-02-05 13:46:24 -04:00
Rekai Nyangadzayi Musuka
25300c8a9f
chore: give more descriptive panic messages when changing mode fails
2022-02-04 16:54:57 -04:00
Rekai Nyangadzayi Musuka
27d0ba8c7e
chore: clean up THUMB instruction decoding
2022-02-04 15:57:46 -04:00
Rekai Nyangadzayi Musuka
2f74b61f2e
feat: parse cartridge header
2022-02-04 05:54:06 -04:00
Rekai Nyangadzayi Musuka
b233981a34
feat: rename ARM and THUMB SWI functions
2022-02-04 04:34:47 -04:00
Rekai Nyangadzayi Musuka
1b8db0c427
chore: group THUMB and select ARM instructions together (same file)
2022-02-04 04:18:20 -04:00
Rekai Nyangadzayi Musuka
3e4f9eddb2
feat: integrate zig-clap with ZBA
2022-02-04 03:12:35 -04:00
Rekai Nyangadzayi Musuka
6ab4610a81
fix(cpu): properly decode format 7 and 8
2022-02-03 01:29:18 -04:00
Rekai Nyangadzayi Musuka
91384a7c68
fix(cpu): resolve edge cases in THUMB Format 5
2022-02-03 00:55:57 -04:00
Rekai Nyangadzayi Musuka
c6bb4bf8e1
fix(cpu): allow for select values to overflow
...
FuzzARM found these operations which panicked, when they should
have overflowed. These are now fixed
n = 8000
2022-02-02 22:49:33 -04:00
Rekai Nyangadzayi Musuka
800ed6f1a7
feat(cpu): implement format 13
...
While bugs do exist, at this point all THUMB and ARMv4 instructions
have been implemented! Yay!
2022-02-02 22:31:21 -04:00
Rekai Nyangadzayi Musuka
027e4fb57b
feat(cpu): implement THUMB format 17
2022-02-02 22:31:08 -04:00
Rekai Nyangadzayi Musuka
1378c809e6
feat(cpu): implement THUMB format11
2022-02-02 22:30:46 -04:00
Rekai Nyangadzayi Musuka
33399e9517
chore: update to latest zig nightly
2022-02-02 21:26:12 -04:00
Rekai Nyangadzayi Musuka
99492a6782
chore: progress towards passing ldr/str thumb in armwrestler
2022-02-02 21:14:46 -04:00
Rekai Nyangadzayi Musuka
8b574efe85
fix(cpu): properly negate in NEG
2022-02-02 20:12:20 -04:00
Rekai Nyangadzayi Musuka
9fd03d2a92
fix(cpu): reimplement THUMB offset shifts
2022-02-02 20:12:07 -04:00
Rekai Nyangadzayi Musuka
9affe01da8
fix(cpu): op == 0b00 decodes to add in format 5
2022-02-02 18:58:06 -04:00
Rekai Nyangadzayi Musuka
784bc81a4a
fix(cpu): account for overflow in THUMB alu MUL
2022-02-02 18:57:33 -04:00
Rekai Nyangadzayi Musuka
045c98de1f
chore: use if-else when decoding THUMB instructions
2022-02-02 18:48:47 -04:00
Rekai Nyangadzayi Musuka
c2901ee0d8
fix(cpu): account for rn in rlist in block data transfer
2022-02-02 17:35:33 -04:00
Rekai Nyangadzayi Musuka
d95efa5b12
feat: implement LDM/STM behaviour when S is set
2022-02-02 16:12:47 -04:00
Rekai Nyangadzayi Musuka
237beb9caa
feat(cpu): Pass all LDR/STR ARMwrestler tests
2022-02-02 14:07:18 -04:00
Rekai Nyangadzayi Musuka
30bad76e44
feat(cpu): decode and implement all necessary ARM CPU instructions
2022-02-02 12:06:41 -04:00
Rekai Nyangadzayi Musuka
c34c2ee6eb
feat(cpu): implement ARM SWP and SWPB
2022-02-02 08:44:33 -04:00
Rekai Nyangadzayi Musuka
6c7934be70
fix: resolve off by n * 2 when accessing Palette during BG Mode 4
2022-02-01 22:56:53 -04:00
Rekai Nyangadzayi Musuka
48017b45f5
feat(cpu): Implement Multiply Long ARM instructions
2022-02-01 22:09:38 -04:00
Rekai Nyangadzayi Musuka
28c81f79ae
fix: no buttons are pressed by default
2022-02-01 20:52:01 -04:00
Rekai Nyangadzayi Musuka
a80600156d
feat(cpu): implement format 18 THUMB instructions
2022-02-01 19:12:01 -04:00
