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115 lines
2.2 KiB
C
115 lines
2.2 KiB
C
//
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// rsp/pipeline.h: RSP processor pipeline.
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//
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// CEN64: Cycle-Accurate Nintendo 64 Emulator.
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// Copyright (C) 2015, Tyler J. Stachecki.
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//
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// This file is subject to the terms and conditions defined in
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// 'LICENSE', which is part of this source code package.
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//
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#ifndef __rsp_pipeline_h__
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#define __rsp_pipeline_h__
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#include "common.h"
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#include "rsp/decoder.h"
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#include "rsp/cp2.h"
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#include "rsp/rsp.h"
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struct rsp;
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enum rsp_mem_request_type {
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RSP_MEM_REQUEST_NONE,
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RSP_MEM_REQUEST_INT_MEM,
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RSP_MEM_REQUEST_VECTOR,
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RSP_MEM_REQUEST_FOURTH,
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RSP_MEM_REQUEST_HALF,
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RSP_MEM_REQUEST_PACK,
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RSP_MEM_REQUEST_QUAD,
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RSP_MEM_REQUEST_REST,
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RSP_MEM_REQUEST_UPACK,
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RSP_MEM_REQUEST_TRANSPOSE,
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};
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struct rsp_int_mem_packet {
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uint32_t data;
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uint32_t rdqm;
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uint32_t wdqm;
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unsigned rshift;
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};
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struct rsp_transpose_mem_packet {
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void (*transpose_func)(struct rsp *rsp, uint32_t addr, unsigned element,
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unsigned vt);
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unsigned element;
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unsigned vt;
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};
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struct rsp_vect_mem_packet {
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union aligned_rsp_1vect_t vdqm;
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void (*vldst_func)(struct rsp *rsp, uint32_t addr, unsigned element,
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uint16_t *regp, rsp_vect_t reg, rsp_vect_t dqm);
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unsigned element;
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unsigned dest;
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};
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union rsp_mem_packet {
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struct rsp_int_mem_packet p_int;
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struct rsp_transpose_mem_packet p_transpose;
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struct rsp_vect_mem_packet p_vect;
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};
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struct rsp_mem_request {
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uint32_t addr;
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enum rsp_mem_request_type type;
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union rsp_mem_packet packet;
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};
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struct rsp_latch {
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uint32_t pc;
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};
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struct rsp_result {
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uint32_t result;
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unsigned dest;
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};
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struct rsp_ifrd_latch {
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struct rsp_latch common;
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struct rsp_opcode opcode;
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uint32_t pc, iw;
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};
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struct rsp_rdex_latch {
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struct rsp_latch common;
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struct rsp_opcode opcode;
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uint32_t iw;
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};
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struct rsp_exdf_latch {
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struct rsp_latch common;
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struct rsp_result result;
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struct rsp_mem_request request;
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};
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struct rsp_dfwb_latch {
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struct rsp_latch common;
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struct rsp_result result;
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};
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struct rsp_pipeline {
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struct rsp_dfwb_latch dfwb_latch;
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struct rsp_exdf_latch exdf_latch;
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struct rsp_rdex_latch rdex_latch;
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struct rsp_ifrd_latch ifrd_latch;
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};
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cen64_cold void rsp_pipeline_init(struct rsp_pipeline *pipeline);
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#endif
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