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Author SHA1 Message Date
Michel Heily fefeddbc40 Continue working on DMA sound. 
Cleanup timer.rs
run cargo fmt
restore debugging continue&frame commands
Fix bug introduced in previous commit causing the bios animation to
hang


Former-commit-id: 188acaa1121503a97f2d3be816f6f57835e17fe1
 2019-12-23 01:37:45 +02:00
Michel Heily 70cb99161d Start working on DMA sound 
Former-commit-id: 066210a86a7836b6ae1dfd5ce229d050cbe00ca4
 2019-12-23 01:37:45 +02:00
Michel Heily 38e504515b rba-sdl2: Trying spin_sleep crate 
Former-commit-id: 1c6a36a1a61be3949080a8c86915235aaf25d0e5
 2019-12-20 19:02:33 +02:00
Michel Heily 31eb12cb6a Add "press SPACE to turbo" to sdl2 binary, like in old-school emulators :P 
Former-commit-id: 95dfddfac193ac846f179ec607a8f7c3fc0e21a4
 2019-12-20 18:11:14 +02:00
Michel Heily cb630ffb8e Optimise SDL2 rendering code 
Former-commit-id: 4a0e4f57a97c98bc8a930901bd1ba2125d96138b
 2019-12-20 17:48:24 +02:00
Michel Heily 3c7a734270 Add minifb based binary, currently it has better performance than the SDL2. 
SDL2 rendering is really bottlenecking currently..


Former-commit-id: 8e04b799f248209a138990b2389e740b0d1d9f0f
 2019-12-20 16:31:26 +02:00
Michel Heily 385016f24a Use Rc<RefCell<T>> to have the GameboyAdvance struct hold references to platform video,audio,input combo 
Former-commit-id: bfe233a333790fe1bad1038bd553a3fe244e57fa
 2019-12-20 15:11:26 +02:00
Michel Heily aee86d85c8 Start Sdl2AudioPlayer 
Former-commit-id: 905b846d751db577bc213f1ca38a4c0e72558cfa
 2019-12-20 15:11:26 +02:00
Michel Heily 04d2edfc01 Refactor "backend" concept 
See plat/sdl2


Former-commit-id: 5f7c9625467003d5b73307959095eb5365db523e
 2019-12-20 15:11:26 +02:00
Michel Heily 326bb06e82 Move rom file loading logic to Cartridge 
Former-commit-id: 29045310d380657819529333b5231a98be5fa8c1
 2019-12-20 15:11:26 +02:00
Yonatan Goldschmidt 763ee217d8 Add WIP sound controller and backend 
Former-commit-id: 50e5bb71a620ac138a880872ae1f13f1c0c0604c
 2019-12-20 15:11:26 +02:00
Yonatan Goldschmidt 7cfa4bb07d Remove some unused imports 
Former-commit-id: 64bd0e7419cd374f6321fcc3bd9fdee7a241592b
 2019-12-20 15:11:26 +02:00
Yonatan Goldschmidt 41deb1631c Print read/writes to unhandled sound registers 
Former-commit-id: f63a98b61866c872ef52dd972db3ef28054be432
 2019-12-20 15:11:26 +02:00
Michel Heily 29df4231e9 Protect unused bits from being set in window flags 
Former-commit-id: a618b4775de7276618dd11ace2e140d200fb066b
 2019-12-20 15:07:23 +02:00
Michel Heily cb36db688e Fix LSR#0 
Former-commit-id: 7cfcc0b8f6e0849c9090148f2cc381b3419abd39
 2019-12-20 15:06:21 +02:00
Michel Heily 11219dab7e tmpfix: Reset scanline in scanline_aff_bg placeholder 
Former-commit-id: a4f910210bfa186611d771202a4ef96e97fe75b7
 2019-11-21 17:46:51 +02:00
Michel Heily 42904782f7 Fix bios infinite loop caused by changes in f5a8ca8de8a5b007ace879f50fb97ead3e976347 [formerly e885e9ff1393dd14f5e4132c71a7641d658399cb] 
This commit removed the dummy iomem buffer, and the bios busy waits on
REG_SOUNDBIAS in order to proceed.


Former-commit-id: 1fb8e2b621bed22da55781adcaae748aaaf845b9
 2019-11-21 17:36:58 +02:00
Michel Heily 9856f04e05 Implement affine sprites. Displaying TONC affine sprites demos correctly. 
Former-commit-id: 6f8aaec9cb844a685a1b07f7d09a0535039133b8
 2019-11-20 06:25:38 +02:00
Michel Heily 64a877369d Reorganize sprite rendering code 
This commit contains changes I forgot to push way earlier.


Former-commit-id: 793bfc2bde25f2299136e6b196f2770ee1db8d19
 2019-11-20 05:33:51 +02:00
Michel Heily bb08b2f48e Improve timers 
Former-commit-id: 02985b13aec6ac4ce52952b9bc505e48ebbb94e6
 2019-11-20 05:20:46 +02:00
Michel Heily 3c3129c73c Minor fixes 
Fix LSR integer underflow.
Change SWI LR calculation


Former-commit-id: 6a298719e380c3a01f70c3b05d9f3507638398d5
 2019-11-20 05:04:54 +02:00
Michel Heily 3c3e8c35b4 Fix wrong sprite size calculation 
This solve many graphical glitches with normal sprites in:

- Kirby - Nightmare in Dreamland
- DragonBall Advanced Adventure
- DragonBall Supersonic Warriors


Former-commit-id: aa7813720ca86c0ff0a3111f245d35765112d750
 2019-11-16 20:18:28 +02:00
Michel Heily 49ef59b8e9 fixup! Improve the debugger 
Former-commit-id: 9ca33bd4f8273a6be66cec6a8218664a7aada376
 2019-11-16 18:48:24 +02:00
Michel Heily 4c3862543e Fix bug in MODE0 where BG3 would not be rendered due to inconclusive range, thank you Rust. 
Former-commit-id: 6dd8ce110d212083cba394f08488d4fffdf6d015
 2019-11-16 18:17:53 +02:00
Michel Heily 46931a1f6a Fix CPU bugs, KIRBY BOOTS! 
- Bad LSR emulation caused an edge-case making allmost all of the game I tested fail to boot past intro.
- Incorrect sign extension of offset5 in THUMB caused bad address calculation.

Kirby boots with rendering glitches, I played past the first 2 boses
without crashes.


Former-commit-id: 8ea0ad6eb0f70e6dc23d1f2fcc44c8c0b3448fba
 2019-11-16 18:17:53 +02:00
Michel Heily ccfff31123 Improve DMA 
According to GBATEK:
The SAD, DAD, and CNT_L registers are holding the initial start
addresses, and initial length. The hardware does NOT change the content
of these registers during or after the transfer.

The actual transfer takes place by using internal pointer/counter
registers. The initial values are copied into internal regs under the
following circumstances:

Upon DMA Enable (Bit 15) changing from 0 to 1: Reloads SAD, DAD, CNT_L.

Upon Repeat: Reloads CNT_L, and optionally DAD (Increment+Reload).


Former-commit-id: 1e606dc88603a4600a79a341ef17fe8ccb482871
 2019-11-16 18:17:53 +02:00
Michel Heily 4f2fbc2af2 More memory map bug fixes (Wrong ROM masks and more) 
Former-commit-id: 4149a16965d111fb95629e8381269eae4f84c0c4
 2019-11-16 18:17:53 +02:00
Michel Heily f7dc417e94 Fix accesses outside of IO region 
Former-commit-id: dc874b6d28370cf7256156f2502bd2dc56a0a3fd
 2019-11-16 18:17:53 +02:00
Michel Heily b9d0857acc Don't allow IRQs when pipeline is reloading 
Former-commit-id: a51d3671dfabab422f2ad880b3cbe1bac65d442b
 2019-11-16 18:17:53 +02:00
Michel Heily b288625b9a Improve the debugger 
- Add tracing of opcodes and potentially more stuff
- Add option to run a script file at the beginnig (I use it to redirect
traces to a file)
- Support breakpoints again


Former-commit-id: 4e988d6bc1a59456c96547f0320a6d9abedcae00
 2019-11-16 18:17:53 +02:00
Michel Heily 7e98af80c2 Fixes to ALU, passing mGBA carry tests 
Former-commit-id: 14a4293b2511c7c63a920e6344e89b209ca7c5ee
 2019-11-16 18:17:53 +02:00
Michel Heily 88b908f2a0 Implemenet GBA Halt control 
Former-commit-id: 1b09cb881b4e68f410abe6e1f6a161cd55a4626a
 2019-11-12 18:55:26 +02:00
Michel Heily dcab1e6328 Improve GPU state machine. 
This fixes the glitch in dma_demo.gba where the rendering of the circle
was off by a scanline.


Former-commit-id: 907fefd548b6557ce46e06a99d0bc6ab83a8f332
 2019-11-12 18:22:00 +02:00
Michel Heily 1d088accb8 mGBA test suite now boots! 
Fix tons of bug and reimplemented some of the core code.
Add a neat feature for debug builds:
When the cpu "swi 0x55" instruction, a breakpoint is triggered on the
host.


Former-commit-id: 959249df4374327d90b2503d7a45f8d5d27995a6
 2019-11-12 18:22:00 +02:00
Michel Heily c117cbe924 Make the debugger work again, but currently breakpoints are not supported. 
Added memory write command and the ability to pause the debugger with Ctrl-C


Former-commit-id: 83d141fa191dadefb84f7c9de163631a69af8324
 2019-11-12 18:22:00 +02:00
Michel Heily c78a111ad4 Implement DMA, WIP 
I have fought very hard against the rust ownership model,
In the end for DMA to play nice with my code, I had to resort to use
unsafe code for now..

The DMA implementation itself is not accurate to say the least, but will
have to do for now.

Tonc's dma_demo.gba plays but with a visual glitch.


Former-commit-id: 3b9cdcb2d09c78701290f2c48b77f9f3487e85c9
 2019-11-09 19:44:55 +02:00
Michel Heily 3a1d5c10ce Fix many bugs, refactor many things.. 
Passing: Armwrestler, cpu_test by Dead_Body

Former-commit-id: 80d815d110c5341515dd01c476a0d7e25ecb66a8
 2019-11-09 01:06:24 +02:00
Michel Heily 2bd8b56bc6 Fix that DAMN bug. 
Long story short, I've been hunting this bug for a while now.
While passing armwresteler tests, I still had an emulation bug which
causeed libgcc's iprintf to produce bugged strings.

In order to find it, I've used https://github.com/fleroviux/NanoboyAdvance/
And patched it to produce a formatted log of every step of the execution
of iprintf:
{OPCODE} {PC} {R0} {R1} ... {R14} {FLAGS}
Did the same on my emulator and searched for differences.

Found out the a "CMP r3, #0x0" instruction turned off the carry flag
when it shouldn't. Found this sad function, the check I'm using for
carry flag is meaningless when done on signed integers. :sigh:


Former-commit-id: 871d2581921796dae9bf4f5fdaa45c6ad46aebec
 2019-11-06 00:49:59 +02:00
Michel Heily 7cc1a50d12 Support zip files and add --no-framerate-limit 
Former-commit-id: 62a7122fb0b3e832eeb3cbf347a0966e4cd32d50
 2019-09-11 21:26:40 +03:00
Michel Heily fa211fa77e Fix thumb NEG instruction. Finally pass armwrestler! 
This one took me quite a bit. :/


Former-commit-id: f08537dda5a62076c3faff31a898c0a585102526
 2019-09-10 01:01:49 +03:00
Michel Heily 441482516e Get rid of timer.rs spam 
Former-commit-id: 2d2ce31ad77840e4a8685257a77f824da21992ba
 2019-09-09 20:07:45 +03:00
Michel Heily 9ebb0d3d2d Fix OBJ priorities (tonc prio_demo.gba works) 
Former-commit-id: a55b3be7688ef7e1446a54c38fc5ddb5034cb4b9
 2019-08-31 14:13:21 +02:00
Michel Heily ba9b4662d4 Fix SBC and RSC instructions 
Needed to add 1-C and not substract 1-C


Former-commit-id: 339201a2cd41d777d3b3204995e698182032c80d
 2019-08-31 14:10:05 +02:00
Michel Heily eab08992b9 Add normal sprite rendering support. 
Former-commit-id: 04c3d7ec3051ce4c5aeacb552688c0217b3b3d3b
 2019-08-27 23:15:22 +03:00
Michel Heily 8abebbe844 Implement Window special effect (win_demo.gba works, excpet the sprite) 
Former-commit-id: 511d04045bbb678ceec39e34c483f04db154997b
 2019-08-24 00:36:48 +03:00
Michel Heily 1d2d950729 Fix IoRegs::write_8 
Former-commit-id: 9877e7f42fefafb71dd319287e01d55926d4d12c
 2019-08-24 00:33:01 +03:00
Michel Heily f40ee148ea Add sdl2 key mappings 
Former-commit-id: 9b3aa941ffca9a679d9ce70ca43d6396d4dfe5ff
 2019-08-23 22:47:12 +03:00
Michel Heily 4a72a1035f Fix Rgb15::is_transparent bug 
Former-commit-id: f12729b993ec9bef94a58a4d48982c7d3939c45b
 2019-08-17 21:27:36 +03:00
Michel Heily 639993edd7 Add blending and mosaic SFX, and cleanup code. 
Former-commit-id: b9f0ccaf1820da61f49ebeb2af5beff5cccd722f
 2019-08-13 22:15:36 +03:00
Michel Heily c4b24fde02 Refactor GPU registers wrappers to a separate module 
Former-commit-id: 3e7c6326232cd761674061ceed758a56412da17f
 2019-08-11 22:35:32 +03:00
Michel Heily 52ef793759 Move gpu module to a separate folder, to allow for later cleanup. 
Also, get rid of "render" command


Former-commit-id: 7dd004f3ff8f55686665adead497ebae4f873379
 2019-08-11 22:28:52 +03:00
Michel Heily edf2efcce5 Fix panic if debugger histfile does not exist 
Former-commit-id: a355a783b4d513dd3c65ef41de6a7604853a7b0f
 2019-08-11 21:50:44 +03:00
Michel Heily 9064ae9cf8 Fix bug in IoRegs::write_32 
Former-commit-id: a2c5b57a0e7da2fa0f080d70acd77b8643bc4742
 2019-08-11 21:50:44 +03:00
Michel Heily 3f6a52cae6 Add sdl2 backend 
Currently has bad performance


Former-commit-id: 384ef6b5cd7b1e1baeb6adfbc0b299b0d07d7a5d
 2019-08-10 18:14:59 +03:00
Michel Heily acd0e4f338 cpu: Refactor instructions to use explicit cycle counting. 
The way cycles were counted up untill now was not accurate enough,
I've avoided doing so because the instruction implementation looks
bloated this way, but I've had problems with cycle accuracy with tonc's
timer demo.

This is not entirely correct though, and I'm 100% sure there are some
mistakes, but works good enough for now.


Former-commit-id: 748faaf99fe2f42925c0a2110192c6a01e5d27d4
 2019-08-08 20:05:09 +03:00
Michel Heily d86cc87c79 Add WAITCNT, and refactor cycle calculation 
Former-commit-id: e1ee5c9ce1f1db549fddd80907467da51e63b676
 2019-08-07 09:50:33 +03:00
Michel Heily fe071bf1ec Fix timer bugs 
Former-commit-id: 9839368895dca306b66a095ab0b9386c77bd2c12
 2019-08-07 09:45:10 +03:00
Michel Heily c72bbb96fd [WIP] Timers 
Seems to work, but the cycle's are not accurate so they run slowly


Former-commit-id: a0b80acb4b68ed64caa535a0ec9f75a081d3aed4
 2019-08-05 09:53:41 +03:00
Michel Heily c7dd713605 The big ioregs refactoring. 
This commit refactors the ioregs:
* Use bitfield crate to implement the GPU ioregs.
* IoRegs are stored in their own variables bindings (i.e, Gpu related ioregs are now fields of the Gpu struct)
  - This optimize performance quiet alot from my testings - since every scanline was accessing deseralizing ioregs from sysbus. (Getting constant 59fps now)
* For now, comment out DMA model

Also, cleaned the code up to eliminate rustc warnings.


Former-commit-id: 9077695c446ebd1a71783acfdd9819245aa02d7a
 2019-08-03 00:24:15 +03:00
Michel Heily 9f0df9af06 optimization: Optimize VRAM accesses from within the gpu. 
Not going through the memory mapping anymore.

Also, this commit wraps the gpu pixeldata with a struct


Former-commit-id: d7b706d9de61bac7909e10d6bbe092968e6acc9f
 2019-08-02 18:04:35 +03:00
Michel Heily eb2a1a02fe Implement background scrolling! 
tonc's brin_demo.gba now works as intended :)


Former-commit-id: 596c063c5968534f42e42f52203c85262b9c6fa2
 2019-07-31 00:52:46 +03:00
Michel Heily f862209911 Support axis flip for tiles 
Former-commit-id: daefb380ab2dfcee600297690dcc0c7c1a37f911
 2019-07-29 09:46:12 +03:00
Michel Heily 90edebbe82 Align to halfword for thumb branch long instructions 
Former-commit-id: f75e4baf003dcb7c535db3692383cc95575dfd81
 2019-07-29 01:55:16 +03:00
Michel Heily e962150aaf Start working on Interrupts. 
it kinda works now, but needs testing.


Former-commit-id: 8510314cce248a737d492d935cf5b48f86d920ed
 2019-07-29 01:28:22 +03:00
Michel Heily 66a484e3ae Fix mode0 calculation of tile map entries. 
tonc's hello.gba demo now works correctly :)


Former-commit-id: ead3a01e810f69503abbe8bddd0853433862549b
 2019-07-27 23:28:00 +03:00
Michel Heily f39095a03b Fix thumb conditional branch offset 
Former-commit-id: b42f233b7f2ca5d427b0e36860a305f7e1a26a1d
 2019-07-27 21:30:27 +03:00
Michel Heily df48f307f0 armwrestler-fix: Fix post indexed LDR_STR when rd==rn 
Former-commit-id: b886c969c2d570fbb831eeeddc0f65ad575cfccb
 2019-07-27 21:28:43 +03:00
Michel Heily 477b4f45fd Fix thumb MUL not setting the flags 
Former-commit-id: b43e35a7fa2894fcc5cef7eeae9d74123e40219b
 2019-07-27 20:25:59 +03:00
Michel Heily 44426b5f0e Impl arm SWP 
Also ran some rustfmt


Former-commit-id: 30480e79d7f2926d5a5f15db20427179a672a78c
 2019-07-27 20:20:58 +03:00
Michel Heily e06c77b6fd armwrestler-fix: Fix MULL_MLAL instructions 
Also fix disassembly for MULL_MLAL


Former-commit-id: f535b2db7edb5d056160699436dbeb0c15e61388
 2019-07-27 18:57:20 +03:00
Michel Heily 7429236471 Fix mistake in UMLAL 
Former-commit-id: 6fe9bdf5471b71b58dcf9ee9ffa03c41b24e6301
 2019-07-26 17:55:50 +03:00
Michel Heily 1b5626a1a7 armwrestler-fix: Refactor barrel shifter and fix ALU carry flag, hopefully for good. 
Passing most of armwrestler ALU tests (still have bugs in UMULL and
SMULL)


Former-commit-id: 3c57ca9b5360b5c9bba74b00a5bede5a8cc496af
 2019-07-26 17:55:50 +03:00
Michel Heily 24483456ed armwrestler-fix: Fix writeback for LDR where rd==rn 
Instead of returning an Err, the writeback should just be disabled.


Former-commit-id: 91636a4eeaf76d0dbd11d250202671fcf8aaa4e6
 2019-07-22 20:33:31 +03:00
Michel Heily 009e46f6d5 armwrestler-fix: Properly handle misaligned addresses LDR/LDRH/LDRSH 
Former-commit-id: 742a7c2b8413fa9d45df1575a0b14b8d1ab697c4
 2019-07-22 20:25:40 +03:00
Michel Heily 2a66e525b1 Fix thumb disassembly of LDMIA/STMIA 
Former-commit-id: b04b07f181fff82869503671dd0f500a6c3e5fb1
 2019-07-22 09:31:35 +03:00
Michel Heily 2fb6f3c884 Implement (psr / usr bank) transfers for LDM_STM 
Former-commit-id: 140e6a6c75f65f08f645b1a0ff2ca7c065438ce4
 2019-07-22 09:21:49 +03:00
Michel Heily 0b5902c52e Implement special MRS 
Former-commit-id: 1af358887ef71344987f72d65612095c72565f43
 2019-07-22 09:21:45 +03:00
Michel Heily c0d437b1a1 Fix exceptions and dataprocess mode change 
Former-commit-id: 5892131496904b621398212b9dfc077242fa9557
 2019-07-22 01:16:48 +03:00
Michel Heily 7501adfd12 Implement thumb17 (Swi) 
Former-commit-id: 62d7e14e9b84e74d9236e1f0a5e961ae805f861c
 2019-07-22 01:15:58 +03:00
Michel Heily eea26d2393 thumb: Change ordering when decoding thumb instruction. 
This fixes a bug where "swi" instructions are decoded as conditional
branches.

The order really matters here, because Swi instructions are actually
conditional branch with illegal condition code.


Former-commit-id: 0024a8b53386a510dd321c157391c99a2af29223
 2019-07-22 00:25:26 +03:00
Michel Heily 387e26fad9 Add support for BGMode3 (tonc first.gba example now working) 
Former-commit-id: 52ac773ee2c3542ff3b046c3ea33fde02e804492
 2019-07-22 00:09:44 +03:00
Michel Heily 7e9c0e31da Add minifb backend - Armwrestler now plays ! 
Former-commit-id: d72ea9139e04624322cf3bc4a8ab330f6bb133a4
 2019-07-20 23:02:18 +03:00
Michel Heily 61e1f055f1 Model the keypad 
Former-commit-id: 4f38fa754e3ee809a7386351297decb2d7f1451f
 2019-07-20 22:58:29 +03:00
Michel Heily 53115a9a58 Refactor core functionality into a separate module 
Former-commit-id: 5d55b9eb0b63ed7c61465b4e814782165caa5002
 2019-07-20 16:46:00 +03:00
Michel Heily 0f73abaf98 Optimize instructions with "register lists" (LDM_STM) 
These instruction (probably) allocated a vector each time.


Former-commit-id: 66f724e21e1e5d667d19c1f21d2cc4fa3944faac
 2019-07-20 16:07:19 +03:00
Michel Heily 7119ba2451 Cpu: Rewrite pipeline code. 
Pipeline code was unreadable up until now, this also fixes a bug:

* Some roms have illegal instructions right after branch instructions, and
the cpu would error trying to decode them because of pipelining.


Former-commit-id: e3201c7b0d2adfc772231a3e2d5909f43c17b50f
 2019-07-20 16:03:37 +03:00
Michel Heily 1f074e20ad Refactor lcd -> gpu 
Former-commit-id: c12be139770922bac55490c76348f5406fc00f07
 2019-07-16 01:21:11 +03:00
Michel Heily 876cdfdcb3 Implement MODE4 rendering, ArmWrestler renders now! 
Former-commit-id: 4910a63b454ae9309abc0aa584a7d0bc96143538
 2019-07-15 20:49:47 +03:00
Michel Heily 1084be52b8 WIP mode0 rendering 
Former-commit-id: 6bce375f9373bbddf4522da5ecc2ea3584373847
 2019-07-15 19:23:16 +03:00
Michel Heily 9d8272b895 Fix wrong use of rust ranges in the lcd.rs module 
Former-commit-id: 73d588299baed7f5206b904f40ecf4a4e5283ef6
 2019-07-15 19:09:41 +03:00
Michel Heily a4925b7233 Fix SP values for "--skip-bios" 
Former-commit-id: d89d3c9c6b5d062137442df4017d59dea047270f
 2019-07-15 07:31:29 +03:00
Michel Heily 0500d33cb7 Refactor bus interface 
Former-commit-id: f325cda23f5e9946b367456d82ba71bb92bdd46e
 2019-07-15 07:30:52 +03:00
Michel Heily f08da850c7 thumb: Fix overflowing multiplication 
Former-commit-id: 5dbd45f9fd3811726aad9c32444f0dcf42d0b8be
 2019-07-13 23:33:37 +03:00
Michel Heily ab8c067616 Flush pipelines when entering an exception 
Former-commit-id: c00754b8156ecac66cc0a72f6a7c73ee700448f0
 2019-07-13 23:33:10 +03:00
Michel Heily fb5229705b Refactor and fix arm condition check 
Former-commit-id: 132c14fc56a21426263971e2d544ff10f072fea1
 2019-07-13 23:32:43 +03:00
Michel Heily 1747addcd3 Start modeling the Lcd Display 
Former-commit-id: 544f185c6f9eead870032170292b1cc8afc724bf
 2019-07-11 18:17:28 +03:00
Michel Heily 95f45e55a9 arm: Impl MULL_MLAL and fix writeback for post-index memory transfers 
Also some minor fixes and formatting


Former-commit-id: 4929b28cbb4eeeed5acfbdcdd19392ffa3bb0f37
 2019-07-11 18:10:58 +03:00
Michel Heily 4763f79abf arm: Impl MLA 
Former-commit-id: fe2c836bd09af165381537445dd288ca7bac24ce
 2019-07-11 00:02:39 +03:00
Michel Heily 5bc4c79d6e arm: Implement MRS 
Former-commit-id: 8c1528b2bcd08096f929c4ee940f1a1f5eac2911
 2019-07-10 23:54:45 +03:00
Michel Heily 5f625b2209 Add special case for MSR immediate 
Former-commit-id: f9fabb3c0d7c05243866b712096c2c82cf41672d
 2019-07-10 23:48:14 +03:00