dolphin/Source/DSPSpy/dspregs.h

// Copyright 2014 Dolphin Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.

#pragma once

#define DSP_REG_AR0		0x00 // address registers
#define DSP_REG_AR1		0x01
#define DSP_REG_AR2		0x02
#define DSP_REG_AR3		0x03

#define DSP_REG_IX0		0x04 // indexing registers (actually, mostly used as increments)
#define DSP_REG_IX1		0x05
#define DSP_REG_IX2		0x06
#define DSP_REG_IX3		0x07

#define DSP_REG_WR0		0x08 // address wrapping registers. should be initialized to 0xFFFF if not used.
#define DSP_REG_WR1		0x09
#define DSP_REG_WR2		0x0a
#define DSP_REG_WR3		0x0b

#define DSP_REG_ST0		0x0c // stacks.
#define DSP_REG_ST1		0x0d
#define DSP_REG_ST2		0x0e
#define DSP_REG_ST3		0x0f

#define DSP_REG_CR		0x12 // Seems to be the top 8 bits of LRS/SRS.
#define DSP_REG_SR		0x13

#define DSP_REG_PRODL	0x14 // product.
#define DSP_REG_PRODM	0x15
#define DSP_REG_PRODH	0x16
#define DSP_REG_PRODM2	0x17

#define DSP_REG_AXL0	0x18
#define DSP_REG_AXL1	0x19
#define DSP_REG_AXH0	0x1a
#define DSP_REG_AXH1	0x1b

#define DSP_REG_ACC0	0x1c // accumulator (global)
#define DSP_REG_ACC1	0x1d

#define DSP_REG_ACL0	0x1c // Low accumulator
#define DSP_REG_ACL1	0x1d
#define DSP_REG_ACM0	0x1e // Mid accumulator
#define DSP_REG_ACM1	0x1f
#define DSP_REG_ACH0	0x10 // Sign extended 8 bit register 0
#define DSP_REG_ACH1	0x11 // Sign extended 8 bit register 1