mirror of
https://github.com/n64dev/cen64.git
synced 2024-06-23 14:33:13 -04:00
8b89df2fdc
Replaced all references to simulation with emulation Updated copyright year Updated .gitignore to reduce chances of random files being uploaded to the repo Added .gitattributes to normalize all text files, and to ignore binary files (which includes the logo and the NEC PDF)
46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
//
|
|
// rsp/decoder.h: RSP decoder.
|
|
//
|
|
// CEN64: Cycle-Accurate Nintendo 64 Emulator.
|
|
// Copyright (C) 2015, Tyler J. Stachecki.
|
|
//
|
|
// This file is subject to the terms and conditions defined in
|
|
// 'LICENSE', which is part of this source code package.
|
|
//
|
|
|
|
#ifndef __rsp_decoder_h__
|
|
#define __rsp_decoder_h__
|
|
#include "common.h"
|
|
#include "rsp/opcodes.h"
|
|
|
|
#define GET_RS(iw) ((iw) >> 21 & 0x1F)
|
|
#define GET_RT(iw) ((iw) >> 16 & 0x1F)
|
|
#define GET_RD(iw) ((iw) >> 11 & 0x1F)
|
|
|
|
#define GET_VS(iw) ((iw) >> 11 & 0x1F)
|
|
#define GET_VT(iw) ((iw) >> 16 & 0x1F)
|
|
#define GET_VD(iw) ((iw) >> 6 & 0x1F)
|
|
#define GET_DE(iw) ((iw) >> 11 & 0x1F)
|
|
#define GET_EL(iw) ((iw) >> 7 & 0xF)
|
|
#define GET_E(iw) ((iw) >> 21 & 0xF)
|
|
|
|
#define OPCODE_INFO_NONE (0)
|
|
#define OPCODE_INFO_VECTOR (1U << 1)
|
|
#define OPCODE_INFO_BRANCH (1U << 31)
|
|
#define OPCODE_INFO_NEEDRS (1U << 3)
|
|
#define OPCODE_INFO_NEEDRT (1U << 4)
|
|
#define OPCODE_INFO_NEEDVS (1U << 3)
|
|
#define OPCODE_INFO_NEEDVT (1U << 4)
|
|
#define OPCODE_INFO_LOAD (1U << 5)
|
|
#define OPCODE_INFO_STORE (1U << 6)
|
|
|
|
struct rsp_opcode {
|
|
uint32_t id;
|
|
uint32_t flags;
|
|
};
|
|
|
|
cen64_hot const struct rsp_opcode* rsp_decode_instruction(uint32_t);
|
|
|
|
#endif
|
|
|