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oot/include/ultra64/rcp.h
Tharo 7334ffa373
Improve the state of handwritten assembly files (#865)
* Format all handwritten asm and document some

* Use c preprocessor for constants

* Fix

* Fix PI_STATUS_ERROR, some label improvements

* Avoid hi/lo for constants

* Some more comments

* Properly mark functions as functions and their sizes

* Fix merge

* Improvements

* Review suggestions, rework procedure start/end macros to be more like libreultra

* Move IPL3 symbol definitions into ipl3.s

* Fix undefined_syms, add include and language guards to asm.h and fix the comment in gbi.h

* Consistent hex capitalization, add some MIPS builtin defines to CC_CHECK to behave properly

* Add -no-pad-sections assembler option and clean up alignment in gu files and bzero

* Further suggestions and improvements

* Matrix conversion function clarifications

* Fix passing AVOID_UB to gcc

* Suggestions

* Suggestions, global interrupt mask improvements

* Further suggestions, interrupt mask comments

* Comments fixes, rdb.h

* Switch from # comments to // comments, remove unnecesary .set gp=64 directives

* Further review suggestions

* Missed one
2022-05-01 01:03:22 +02:00

139 lines
5.2 KiB
C

#ifndef ULTRA64_RCP_H
#define ULTRA64_RCP_H
#ifdef _LANGUAGE_C
#define HW_REG(reg, type) *(volatile type*)((reg) | 0xA0000000)
#endif
#define AI_DRAM_ADDR_REG 0x04500000
#define AI_LEN_REG 0x04500004
#define AI_CONTROL_REG 0x04500008
#define AI_STATUS_REG 0x0450000C
#define AI_DACRATE_REG 0x04500010
#define AI_BITRATE_REG 0x04500014
#define AI_STATUS_AI_FULL (1 << 31)
#define AI_STATUS_AI_BUSY (1 << 30)
#define VI_STATUS_REG 0x04400000
#define VI_CONTROL_REG VI_STATUS_REG
#define VI_ORIGIN_REG 0x04400004
#define VI_DRAM_ADDR_REG VI_ORIGIN_REG
#define VI_WIDTH_REG 0x04400008
#define VI_H_WIDTH_REG VI_WIDTH_REG
#define VI_INTR_REG 0x0440000C
#define VI_V_INTER_REG VI_INTR_REG
#define VI_CURRENT_REG 0x04400010
#define VI_V_CURRENT_LINE_REG VI_CURRENT_REG
#define VI_BURST_REG 0x04400014
#define VI_TIMING_REG VI_BURST_REG
#define VI_V_SYNC_REG 0x04400018 //VI vertical sync
#define VI_H_SYNC_REG 0x0440001C //VI horizontal sync
#define VI_LEAP_REG 0x04400020 //VI horizontal sync leap
#define VI_H_SYNC_LEAP_REG VI_LEAP_REG
#define VI_H_START_REG 0x04400024 //VI horizontal video
#define VI_H_VIDEO_REG VI_H_START_REG
#define VI_V_START_REG 0x04400028 //VI vertical video
#define VI_V_VIDEO_REG VI_V_START_REG
#define VI_V_BURST_REG 0x0440002C //VI vertical burst
#define VI_X_SCALE_REG 0x04400030 //VI x-scale
#define VI_Y_SCALE_REG 0x04400034 //VI y-scale
#define SP_IMEM_START 0x04001000
#define SP_DMEM_START 0x04000000
#define SP_MEM_ADDR_REG 0x04040000
#define SP_DRAM_ADDR_REG 0x04040004
#define SP_RD_LEN_REG 0x04040008
#define SP_WR_LEN_REG 0x0404000C
#define SP_STATUS_REG 0x04040010
#define SP_PC_REG 0x04080000
#define PI_DRAM_ADDR_REG 0x04600000 //PI DRAM address
#define PI_CART_ADDR_REG 0x04600004 //PI pbus (cartridge) address
#define PI_RD_LEN_REG 0x04600008 //PI read length
#define PI_WR_LEN_REG 0x0460000C //PI write length
#define PI_STATUS_REG 0x04600010 //PI status
#define PI_BSD_DOM1_LAT_REG 0x04600014 //PI dom1 latency
#define PI_DOMAIN1_REG 0x04600014
#define PI_BSD_DOM1_PWD_REG 0x04600018 //PI dom1 pulse width
#define PI_BSD_DOM1_PGS_REG 0x0460001C //PI dom1 page size
#define PI_BSD_DOM1_RLS_REG 0x04600020 //PI dom1 release
#define PI_BSD_DOM2_LAT_REG 0x04600024 //PI dom2 latency
#define PI_DOMAIN2_REG 0x04600024
#define PI_BSD_DOM2_PWD_REG 0x04600028 //PI dom2 pulse width
#define PI_BSD_DOM2_PGS_REG 0x0460002C //PI dom2 page size
#define PI_BSD_DOM2_RLS_REG 0x04600030 //PI dom2 release
// PI_STATUS (read) bits
#define PI_STATUS_BUSY (1 << 0)
#define PI_STATUS_IOBUSY (1 << 1)
#define PI_STATUS_ERROR (1 << 2)
// PI_STATUS (write) bits
#define PI_STATUS_RESET (1 << 0)
#define PI_STATUS_CLR_INTR (1 << 1)
#define SI_DRAM_ADDR_REG 0x04800000
#define SI_PIF_ADDR_RD64B_REG 0x04800004
#define SI_PIF_ADDR_WR64B_REG 0x04800010
#define SI_STATUS_REG 0x04800018
// SI_STATUS (read) bits
#define SI_STATUS_DMA_BUSY (1 << 0)
#define SI_STATUS_IO_READ_BUSY (1 << 1)
#define SI_STATUS_DMA_ERROR (1 << 3)
#define SI_STATUS_INTERRUPT (1 << 12)
#define PIF_RAM_START 0x1FC007C0
#define MI_INIT_MODE_REG 0x04300000
#define MI_MODE_REG MI_INIT_MODE_REG
#define MI_VERSION_REG 0x04300004
#define MI_INTR_REG 0x04300008
#define MI_INTR_MASK_REG 0x0430000C
// MI_INIT_MODE_REG bits (write)
#define MI_CLR_INIT (1 << 7)
#define MI_SET_INIT (1 << 8)
#define MI_CLR_EBUS (1 << 9)
#define MI_SET_EBUS (1 << 10)
#define MI_CLR_DP_INTR (1 << 11)
#define MI_CLR_RDRAM (1 << 12)
#define MI_SET_RDRAM (1 << 13)
// MI_INTR_REG bits
#define MI_INTR_SP (1 << 0)
#define MI_INTR_SI (1 << 1)
#define MI_INTR_AI (1 << 2)
#define MI_INTR_VI (1 << 3)
#define MI_INTR_PI (1 << 4)
#define MI_INTR_DP (1 << 5)
// MI_INTR_MASK_REG masks (read)
#define MI_INTR_MASK_SP 0x01
#define MI_INTR_MASK_SI 0x02
#define MI_INTR_MASK_AI 0x04
#define MI_INTR_MASK_VI 0x08
#define MI_INTR_MASK_PI 0x10
#define MI_INTR_MASK_DP 0x20
// MI_INTR_MASK_REG masks (write)
#define MI_INTR_MASK_CLR_SP 0x0001
#define MI_INTR_MASK_SET_SP 0x0002
#define MI_INTR_MASK_CLR_SI 0x0004
#define MI_INTR_MASK_SET_SI 0x0008
#define MI_INTR_MASK_CLR_AI 0x0010
#define MI_INTR_MASK_SET_AI 0x0020
#define MI_INTR_MASK_CLR_VI 0x0040
#define MI_INTR_MASK_SET_VI 0x0080
#define MI_INTR_MASK_CLR_PI 0x0100
#define MI_INTR_MASK_SET_PI 0x0200
#define MI_INTR_MASK_CLR_DP 0x0400
#define MI_INTR_MASK_SET_DP 0x0800
#define VI_NTSC_CLOCK 48681812 /* Hz = 48.681812 MHz */
#define VI_PAL_CLOCK 49656530 /* Hz = 49.656530 MHz */
#define VI_MPAL_CLOCK 48628316 /* Hz = 48.628316 MHz */
#endif