Hardware/Macronix DSP: Difference between revisions
< Hardware
updated microcode |
m updated dsp page |
||
| (11 intermediate revisions by 2 users not shown) | |||
| Line 1: | Line 1: | ||
Macronix DSP is a 16 bit programmable DSP | Macronix DSP is a 16 bit programmable DSP(Slave Processor) in the Nintendo GameCube\Wii\Wii U it was manufactured by Macronix. | ||
It has it's own ADPCM hardware decoder to off load the DSP. | It has it's own ADPCM hardware decoder to off load the DSP. | ||
16 MB of ARAM stores PCM\ADPCM, but ARAM also can store extra data such as textures, animations, data, for example. | |||
Macronix DSP microcode is written in assembly you will require a assembler to assemble your code. asnd & aesnd is the homebrew dsp microcode that | Macronix DSP microcode is written in assembly you will require a assembler to assemble your code. asnd & aesnd is the homebrew dsp microcode that exists in libogc for the Nintendo GameCube\Wii, can mix up to 64 channels(AX\JAudio) and 16 or 32 channels(ASnd\AESnd) respectively in software. | ||
JAudio(JSystem) DSP microcode also seems to contain these types | JAudio(JSystem) DSP microcode also seems to contain these types | ||
SRC_SQUARE_WAVE | SRC_SQUARE_WAVE | ||
SQUARE_WAVE_25PCT | SQUARE_WAVE_25PCT | ||
| Line 15: | Line 14: | ||
== DSP Specs == | == DSP Specs == | ||
Clock: 121.5MHz | Clock: 81MHz(GC) or 121.5MHz(Wii) | ||
Bits: 16bit | Bits: 16bit | ||
Endian: Big | Endian: Big | ||
| Line 23: | Line 22: | ||
Instruction ROM: 8KB (Macronix, Nintendo) | Instruction ROM: 8KB (Macronix, Nintendo) | ||
Hardware Decoder: DSP-ADPCM | Hardware Decoder: DSP-ADPCM | ||
== DSP Programs == | == DSP Programs == | ||
| Line 30: | Line 27: | ||
DSP ARAM/Init microcode | DSP ARAM/Init microcode | ||
Memory Card microcode - handles memory card security & unlocking | Memory Card microcode - handles memory card security & unlocking | ||
Audio System(AX) microcode - mixing, filters, Dolby | Audio System(AX) microcode - mixing, filters, Dolby logic pro II, effects done on CPU | ||
JAudio(JSystem) microcode - mixing, filters, Dolby | JAudio(JSystem) microcode - mixing, filters, Dolby logic pro II, effects done on DSP | ||
GBA Multiboot microcode - decrypts GBA multiboot program | GBA Multiboot microcode - decrypts GBA multiboot program | ||
| Line 37: | Line 34: | ||
ASnd microcode - mixing | ASnd microcode - mixing | ||
AESnd microcode - mixing | AESnd microcode - mixing | ||
[[Category:Hardware]] | [[Category:Hardware]] | ||
Latest revision as of 02:11, 29 January 2025
Macronix DSP is a 16 bit programmable DSP(Slave Processor) in the Nintendo GameCube\Wii\Wii U it was manufactured by Macronix. It has it's own ADPCM hardware decoder to off load the DSP. 16 MB of ARAM stores PCM\ADPCM, but ARAM also can store extra data such as textures, animations, data, for example.
Macronix DSP microcode is written in assembly you will require a assembler to assemble your code. asnd & aesnd is the homebrew dsp microcode that exists in libogc for the Nintendo GameCube\Wii, can mix up to 64 channels(AX\JAudio) and 16 or 32 channels(ASnd\AESnd) respectively in software.
JAudio(JSystem) DSP microcode also seems to contain these types
SRC_SQUARE_WAVE SQUARE_WAVE_25PCT SAW_WAVE PCM8 PCM16 DSP-ADPCM
DSP Specs
Clock: 81MHz(GC) or 121.5MHz(Wii) Bits: 16bit Endian: Big Data RAM: 8KB Data ROM: 4KB Instruction RAM: 8KB Instruction ROM: 8KB (Macronix, Nintendo) Hardware Decoder: DSP-ADPCM
DSP Programs
Bootrom IPL microcode x2 (Macronix, Nintendo) DSP ARAM/Init microcode Memory Card microcode - handles memory card security & unlocking Audio System(AX) microcode - mixing, filters, Dolby logic pro II, effects done on CPU JAudio(JSystem) microcode - mixing, filters, Dolby logic pro II, effects done on DSP GBA Multiboot microcode - decrypts GBA multiboot program
Homebrew DSP Programs
ASnd microcode - mixing AESnd microcode - mixing