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155 commits

Author SHA1 Message Date
Tillmann Karras
288da38dc3 docs/DSP: fix some bit pattern inconsistencies 
Thanks to @Oaisus who reported this.
 2025-07-27 14:22:10 +01:00
Tillmann Karras
80adfc606d docs/DSP: Rename SCALE to PRED_SCALE 2025-04-25 01:09:15 +01:00
Tillmann Karras
05381c5b6d Address Pokechu22's feedback 2025-04-25 00:51:46 +01:00
xperia64
512da86b1a Update DSP docs with accelerator info, fix ANDC/ORC instruction description typos 2025-04-25 00:51:46 +01:00
xperia64
04c7c1a4a1 Rename accelerator accesses to 'raw' and 'sample' 2025-04-25 00:51:45 +01:00
Vincent Pelletier
099e6c9ab6 docs/DSP: Trivial adjustment to BLOOP{,I} sub-operation order 
Noticed while tracing in a BLOOP using DSPSpy with $st{0..3} unmasked.
BLOOPI assumed to follow the pattern.
 2022-09-30 11:07:41 +00:00
Pokechu22
f47dfc3dba docs/DSP: Update version and history 
The GFDL requires the history section to be updated.
 2022-06-01 22:26:59 -07:00
Pokechu22
24a339f437 docs/DSP: Explain 16-bit and 40-bit modes 2022-06-01 22:25:59 -07:00
Pokechu22
d297ab18e6 docs/DSP: Add notes highlighting the difference between 'LS and 'SL 2022-06-01 22:25:59 -07:00
Pokechu22
0dd181f461 docs/DSP: Add missing dollar signs in shift instruction operation sections 2022-05-31 16:26:55 -07:00
Pokechu22
7c63bd1893 docs/DSP: Fix inconsistency with ADDI and CMPI 
We don't have anything called $amD, though we do have $acsD.  However, these instructions affect flags based on the whole accumulator, so it's better to just use $acD.
 2022-05-29 15:00:09 -07:00
Pokechu22
4dc7208195 docs/DSP: Fix typo with arithmetic instructions that take a 16-bit immediate 
These instructions used an 'r' in their bit list, but a 'd' in the operands.
 2022-05-29 15:00:09 -07:00
Pokechu22
b349254ff4 docs/DSP: Document the behavior when main and extended opcodes both write to the same register (the write backlog) 
For more information, ApplyWriteBackLog, WriteToBackLog, and ZeroWriteBackLog were added in b787f5f8f7 and the explanatory comment was added in fd40513fed, although it did not mention the specific instructions that could trigger this edge case. The statements about which registers can be written by main opcodes and extension opcodes are based on my own checking of all instructions in the manual.
 2022-05-29 15:00:09 -07:00
Pokechu22
bb01ba60d6 docs/DSP: Fix typo in 'NOP comment 2022-05-29 15:00:09 -07:00
Pokechu22
83aabbbece docs/DSP: Clarify LRS note 
$acS.h was a typo, which has been replaced with $acD.h.
 2022-05-29 15:00:09 -07:00
Pokechu22
ce4aba7d5e docs/DSP: Rename CMPAR to CMPAXH 2022-05-27 18:22:38 -07:00
Pokechu22
0531e51e39 docs/DSP: Fix "ILLR" typo in Instruction Memory section 2022-05-21 22:59:04 -07:00
xperia64
534d92d2c5 Add tested bootloading transfer size 2022-05-14 23:12:53 -04:00
Pokechu22
44129dda4c dsp_rom: Add version numbers and hashes to VerifyRoms and readme 2021-08-22 10:49:46 -07:00
Pokechu22
a5e2a0d973 dsp_rom: Remove illegal use of AX with SRS 2021-08-22 10:49:46 -07:00
Tillmann Karras
c881f4db22 dsp_rom: add pseudo code and fix small accuracy issues 
Doesn't fix anything, hence not upstreaming this.
 2021-08-22 10:49:46 -07:00
Pokechu22
d0b40528e5 dsp_rom: Fix readme eols and trailing whitespace 2021-08-22 10:49:46 -07:00
Pokechu22
4fa9517ba3 docs/DSP: Update version and history 
The GFDL requires the history section to be updated.
 2021-08-21 17:07:14 -07:00
Pokechu22
9ef388f1c3 docs/DSP: NEG can set overflow and carry 2021-08-21 17:07:14 -07:00
Pokechu22
602163b623 docs/DSP: Fix typo with MULCMVZ and MULCMV 2021-08-21 17:07:14 -07:00
Pokechu22
c51c339424 docs/DSP: Document initialization process 2021-08-21 17:07:14 -07:00
Pokechu22
5bf59f3ce4 docs/DSP: A failed RETcc only inceases PC by 1, not 2 
This is because RETcc is a single-word instruction.
 2021-08-21 17:07:14 -07:00
Pokechu22
1b84721b7f docs/DSP: Add RTIcc 2021-08-21 17:07:14 -07:00
Pokechu22
5611bd8f23 docs/DSP: Change conditional names to match Dolphin 2021-08-21 17:07:14 -07:00
Pokechu22
af10eab938 docs/DSP: Split SRSH from SRS 2021-08-21 17:07:14 -07:00
Pokechu22
408623b6e9 docs/DSP: Document behavior of LRS/SRS/SI with CR 2021-08-21 17:07:14 -07:00
Pokechu22
8fa649e1d6 docs/DSP: Document masking/sign extension behavior of registers 2021-08-21 17:07:14 -07:00
Pokechu22
7c645e1865 docs/DSP: Fix registers used by MOVAX and MOV 2021-08-21 17:07:14 -07:00
Pokechu22
be753e5a45 docs/DSP: MADDC operates on acS.m, not acS.l 
This matches the prose and Dolphin's implementation.
 2021-08-21 17:07:13 -07:00
Pokechu22
0796fada17 docs/DSP: Add information about flags for every instruction 2021-08-21 17:07:13 -07:00
Pokechu22
9249454f33 docs/DSP: Document overflow and carry behavior 2021-08-21 17:07:13 -07:00
Pokechu22
a8ec0ad27f docs/DSP: Fix MULXAC bytes 
The previous encoding was for MULXMVZ.
 2021-08-21 16:05:06 -07:00
Pokechu22
2db2683ea9 docs/DSP: Fix 'S format 2021-08-21 16:05:06 -07:00
Pokechu22
139e05800f docs/DSP: Fix 'LS encoding 
The old encoding was a copy of 'LN.
 2021-08-21 16:05:06 -07:00
Pokechu22
8767df40e5 docs/DSP: Fix acD/acR conflation in shift instructions 2021-08-21 16:05:06 -07:00
Pokechu22
332bb6fd55 docs/DSP: Fix operation for LSR/ASR 2021-08-21 16:05:06 -07:00
Pokechu22
2eb791d5e1 docs/DSP: Note that ADDAXL is unsigned 2021-08-21 16:05:06 -07:00
Pokechu22
953670b057 docs/DSP: Fix operation of ADDR and SUBR 2021-08-21 16:05:06 -07:00
Pokechu22
8881ecef19 docs/DSP: Adjust operation for CMPI and CMPIS 
This more clearly indicates what it is supposed to do.
 2021-08-21 16:05:06 -07:00
Pokechu22
79664d419c docs/DSP: Document rounding behavior of CLRL 2021-08-21 16:05:06 -07:00
Pokechu22
1bcea561e9 docs/DSP: Add 'NOP 2021-08-21 16:05:05 -07:00
Pokechu22
29b61d463e docs/DSP: Document 'LD and 'LDAX 2021-08-21 16:05:05 -07:00
Pokechu22
031621bf51 docs/DSP: Document behavior and instructions when the first nybble is 3 2021-08-21 16:05:05 -07:00
Pokechu22
211c2b5d99 docs/DSP: Add most missing instructions 
These instructions were already implememented by Dolphin, but never added to the manual.  Extension instructions will be handled in a later commit, as wlil instructions that were not previously implememented by Dolphin.
 2021-08-21 16:05:05 -07:00
Pokechu22
446b1d2f13 docs/DSP: Adjust bit names in opcode table 
The old names did not match the ones used by the instructions themselves, and were generally fairly inconsistent.
 2021-08-21 16:05:05 -07:00