#108126 - wintermute - Sun Nov 05, 2006 5:08 pm
| Martin Korth wrote: |
|
Heya Been uploading a new no$gba update. And, I've a new email address (see above), the old address has been flooded with spam. Please do NOT put it online, do NOT post it into forums, I hope it'll remain spam-free for a while. The main no$gba news is NDS sound emulation, emulates all sound channels & sound formats, and the various combinations of mixing/rounding/clipping/routing towards speakers and capture unit, including for exact reproduction of all capture errors. While working on it, I've also fixed a bug on GBA sound ch3, and measured and emulated correct/clipped output levels for GBA sounds. Aside from sound: Bugfixes for the ARM9 halfword-multiply opcodes, and for ARM9 q(d)add/sub opcodes, for accessing GBA-slot SRAM in NDS mode, for 3D GX "nop" command, and for 3D texture transformations. 3D Boxtest command (more or less) emulated. Wrapped 2D bitmaps emulated (which do work on NDS, unlike as on GBA). Plus a couple of curious CPU details: emulates ARM9 pre-armv5 mode, emulates stm/ldm with empty rlist, as well as rlist's with write-back plus base-inclusion, and the newly discovered dummy CP14 unit on the GBA/ARM7. http://nocash.emubase.de/gba.htm Cu, Martin --- 4th November 2006 - version 2.3a - nds/help: nds-bitmaps can be wrapped (that unlike gba-bitmaps) (thanks remi) - nds/video: emulates optional wrap-around (area overflow) for nds bitmap-modes - nds/video: emulates read-only 2d-engine-b ports as read-only (thanks remi) - nds/3d: texture transformation mode 1 supports negative m[8,9,12,13] values - nds/3d/boxtest: fast onscreen pre_check on any of all 8 coordinates of box - nds/3d/boxtest: fast offscreen pre_check on all 8 coordinates of whole-box - nds/3d/boxtest: fast offscreen pre_check on all 4 coordinates of box-face - video/speedup: faster bg drawing when special effects disabled (blend/bright) - reg/home: moved all users to usa, avoids paypal-german-language-service (remi) - reg/full: new parity and decrypt.jpg encryption by headless marching soldiers - reg/full: discontinued free nds-updates for older (than 12 months) gba-users - reg/full: registration tool auto-generates invoices for commercial users - reg/home: new file-ext .key (some servers now declare .bin as potential virus) - sync: forces machine_switch on retrace, forces to be 1st machine after retrace - gui/f1_key: HELP_FORCEFILE instead HELP_CONTENTS (preserves current chapter) - webpage: added donate buttons on gba,msx,cpc,nes,2k6,zx8,c64 freeware pages - email: new email address - please do NOT put it online - due to spam problems - nds/3d: bug-fixed GX "nop" command (to have 0 parameters, instead 1 parameter) - emu/help: described + emulated gba/nds7 dummy cp14-icebreaker (prefetch data) - nds/cpu: emulates cp15 ctrl bit15 (pre-v5 ldr/ldm/pop pc.bit0=thumb disabled) - cpu: emulates/ignores misaligned r15 in LDM [Rb],r15 (with optional warning) - nds/help: added some basic specs on DS Memory Timings (in DS Various chapter) - nds/3d: bugfixed texture transform (imul_op=64bit, instead imul_eax,op=32bit) - cpu: emulates empty rlist (load/store r15 on ARMv4, Rb=Rb+/-40h on ARMv4/v5) - cpu: emulates writeback-base-included-in-rlist (for all stm/ldm/v4/v5/tmb/arm) - cpu/help: added info on invalid rlist's for ARMv4/v5 THUMB/ARM LDM/STM opcodes - cpu: bugfixed arm9 q(d)add/sub (xor 7fffffffh instead 7ffffffh, one more f) - nds/sound: emulates sound output speaker routing and speaker stereo panning - nds/sound: emulates sound-hold (freezes output until hold=0 or next re-start) - nds/sound: optionally mono output, optionally disabled, on machine 1 only - nds/sound: allows "dumb loops" when reading non-irq-timed sound status regs - nds/sound/help: described hold flag (can't hold on restart, apparently bugged) - nds/sound/help: described the two different ch(a)+ch(b) addition outputs - nds/sound/help: described capture errors (both negative and overflow bugs) - nds/sound: emulates minmax clipping, fully emulates all sound capture errors - gba/sound: fixed small ch4 glitch (occured when only one stereo side was on) - gba/sound: bugfix: recurses channel 3 wave ram bank number/bank size changes - gba/sound: emulates minmax clipping, corrected channel-volume vs bias-volume - gba/nds/sound/help: rev-engineered Max Output Levels (psg/pcmfifo/bias/clip) - nds/sound: emulates capture (routing, adding, mixing, rounding, clipping, etc) - nds/sound: emulates sound loop+length and high accuracy frequency timings - nds/gba-slot/bugfix: memadr_sram (instead nnn=0Eh) (thanks Chow Kim Foong) - nds/sound/help: corrected sample frequency, explained length/loop registers - nds/sound: emulates channel volume, channel volume shift, master volume, bias - nds/sound: emulates pcm8, pcm16, adpcm, psg wave/duty, psg noise formats - nds/sound: emulates all write-only sound ports as such (reads as 00000000h) - nds/sound/no$fmw/emu: initializes bias=200h (as done by original firmware) - nds/sound: nds_sb_generate_sample invoked by NDS7 (not NDS9) as sound master - nds/bugfix: fixed arm9 halfmul opcodes (accidently exchanged opcode lsbs/msbs) - debug/disass: fixed smulxy opcode (showed up as "smmuxy" instead of "smulxy") - nds/sound/help: described SOUNDCNT bits 8-11 (final audio output selection) |
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