2021-08-17 18:11:32 +00:00
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Legal GC/WII DSP IROM replacement (v0.4) (0xe789b5a5, 0xa4a575f5)
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2021-08-17 05:15:19 +00:00
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-------------------------------------------------------
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- irom: Minor accuracy and documentation improvements
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- irom: Remove use of SRS instruction with AX registers, as those instructions
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do not actually exist
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Tilka, Pokechu22
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17/aug/2021
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2021-08-17 18:11:32 +00:00
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Legal GC/WII DSP IROM replacement (v0.3.1) (0x128ea7a2, 0xa4a575f5)
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2021-08-17 18:12:25 +00:00
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-------------------------------------------------------
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- irom: When running from the ROM entrypoint, skip the bootucode_ax branch
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of the bootucode procedure. Since the ROM doesn't set any of the AX
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registers, it could cause bad DMA transfers and crashes.
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ligfx
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10/aug/2017
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2021-08-17 18:11:32 +00:00
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Legal GC/WII DSP IROM replacement (v0.3) (0x3aa4a793, 0xa4a575f5)
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2021-08-17 18:12:25 +00:00
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-------------------------------------------------------
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- coef: Explicitly set 23 different values that are used by GBA UCode, and
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tweaked overall parameters to more closely match those 23 values.
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- irom: Moved a few functions to their proper places, updated BootUCode to
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configure DMA transfers using AX registers as well as IX registers (the GBA
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UCode uses this to do two sequential transfers in one call), and added
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partial functions used by GBA UCode.
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ligfx
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2/june/2017
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2021-08-17 18:11:32 +00:00
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Legal GC/WII DSP IROM replacement (v0.2.1) (0xd9907f71, 0xdb6880c1)
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2021-08-17 18:12:25 +00:00
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-------------------------------------------------------
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- coef: 4-tap polyphase FIR filters
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- irom: unchanged
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Coefficients are roughly equivalent to those in the official DROM.
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Improves resampling quality greatly over linear interpolation.
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See generate_coefs.py for details.
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stgn
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29/june/2015
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2021-08-17 18:11:32 +00:00
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Legal GC/WII DSP IROM replacement (v0.2) (0xd9907f71, 0xb019c2fb)
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2021-08-17 18:12:25 +00:00
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-------------------------------------------------------
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- coef: crafted to use a linear interpolation when resampling (instead of
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having a real 4 TAP FIR filter)
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- irom: added all the mixing functions, some functions not used by AX/Zelda are
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still missing
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Should work with all AX, AXWii and Zelda UCode games. Card/IPL/GBA are most
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likely still broken with it and require a real DSP ROM.
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delroth
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16/march/2013
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2021-08-17 18:11:32 +00:00
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Legal GC/WII DSP IROM replacement (v0.1) (0x9c8f593c, 0x10000001)
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2021-08-17 18:12:25 +00:00
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-------------------------------------------------------
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2021-08-17 18:11:32 +00:00
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2021-08-17 18:12:25 +00:00
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- coef: fake (zeroes)
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- irom: reversed and rewrote ucode loading/reset part, everything else is missing
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Good enough for Zelda ucode games (and maybe some AX too):
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- WII: SMG 1/2, Pikmin 1/2 WII, Zelda TP WII, Donkey Kong Jungle Beat (WII), ...
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- GC: Mario Kart Double Dash, Luigi Mansion, Super Mario Sunshine, Pikmin 1/2, Zelda WW, Zelda TP, ...
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Basically... If game is not using coef and irom mixing functions it will work ok.
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Dolphin emulator will report wrong CRCs, but it will work ok with mentioned games.
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LM
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31/july/2011
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