228 lines
6.5 KiB
C
228 lines
6.5 KiB
C
/*
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* Copyright © 2022 Imagination Technologies Ltd.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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#include "rogue_instr.h"
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#include "rogue_operand.h"
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#include "rogue_util.h"
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#include "util/ralloc.h"
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/**
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* \file rogue_instr.c
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*
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* \brief Contains functions to manipulate Rogue instructions.
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*/
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/* clang-format off */
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static const size_t instr_operand_count[ROGUE_OP_COUNT] = {
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[ROGUE_OP_NOP] = 0,
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[ROGUE_OP_END_FRAG] = 0,
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[ROGUE_OP_END_VERT] = 0,
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[ROGUE_OP_WDF] = 1,
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[ROGUE_OP_PIX_ITER_W] = 5,
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[ROGUE_OP_MAX] = 3,
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[ROGUE_OP_MIN] = 3,
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[ROGUE_OP_PACK_U8888] = 2,
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[ROGUE_OP_MOV] = 2,
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[ROGUE_OP_MOV_IMM] = 2,
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[ROGUE_OP_FMA] = 4,
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[ROGUE_OP_MUL] = 3,
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[ROGUE_OP_VTXOUT] = 2,
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};
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/* clang-format on */
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/**
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* \brief Returns the number of operands an instruction takes.
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*
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* \param[in] opcode The instruction opcode.
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* \return The number of operands.
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*/
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static inline size_t rogue_instr_num_operands(enum rogue_opcode opcode)
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{
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ASSERT_OPCODE_RANGE(opcode);
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return instr_operand_count[opcode];
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}
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/**
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* \brief Allocates and sets up a Rogue instruction.
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*
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* \param[in] mem_ctx The memory context for the instruction.
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* \param[in] opcode The instruction opcode.
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* \return A rogue_instr* if successful, or NULL if unsuccessful.
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*/
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struct rogue_instr *rogue_instr_create(void *mem_ctx, enum rogue_opcode opcode)
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{
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struct rogue_instr *instr;
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ASSERT_OPCODE_RANGE(opcode);
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instr = rzalloc_size(mem_ctx, sizeof(*instr));
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if (!instr)
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return NULL;
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instr->opcode = opcode;
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instr->num_operands = rogue_instr_num_operands(opcode);
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/* Allocate space for operand array. */
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if (instr->num_operands) {
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instr->operands = rzalloc_array_size(instr,
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sizeof(*instr->operands),
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instr->num_operands);
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if (!instr->operands) {
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ralloc_free(instr);
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return NULL;
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}
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}
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return instr;
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}
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/**
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* \brief Sets a Rogue instruction flag.
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*
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* \param[in] instr The instruction.
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* \param[in] flag The flag to set.
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* \return true if valid, otherwise false.
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*/
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bool rogue_instr_set_flag(struct rogue_instr *instr, enum rogue_instr_flag flag)
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{
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instr->flags = ROH(flag);
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return true;
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}
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/**
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* \brief Sets a Rogue instruction operand to an immediate value.
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*
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* \param[in] instr The instruction.
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* \param[in] index The operand index.
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* \param[in] value The value to set.
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* \return true if valid, otherwise false.
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*/
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bool rogue_instr_set_operand_imm(struct rogue_instr *instr,
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size_t index,
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uint64_t value)
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{
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ASSERT_INSTR_OPERAND_INDEX(instr, index);
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instr->operands[index].type = ROGUE_OPERAND_TYPE_IMMEDIATE;
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instr->operands[index].immediate.value = value;
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return true;
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}
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/**
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* \brief Sets a Rogue instruction operand to a DRC number.
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*
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* \param[in] instr The instruction.
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* \param[in] index The operand index.
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* \param[in] number The DRC number to set.
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* \return true if valid, otherwise false.
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*/
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bool rogue_instr_set_operand_drc(struct rogue_instr *instr,
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size_t index,
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size_t number)
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{
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ASSERT_INSTR_OPERAND_INDEX(instr, index);
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instr->operands[index].type = ROGUE_OPERAND_TYPE_DRC;
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instr->operands[index].drc.number = number;
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return true;
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}
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/**
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* \brief Sets a Rogue instruction operand to a register.
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*
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* \param[in] instr The instruction.
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* \param[in] index The operand index.
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* \param[in] type The register type to set.
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* \param[in] number The register number to set.
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* \return true if valid, otherwise false.
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*/
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bool rogue_instr_set_operand_reg(struct rogue_instr *instr,
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size_t index,
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enum rogue_operand_type type,
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size_t number)
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{
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ASSERT_INSTR_OPERAND_INDEX(instr, index);
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ASSERT_OPERAND_REG(type);
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instr->operands[index].type = type;
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instr->operands[index].reg.number = number;
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return true;
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}
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/**
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* \brief Sets a Rogue instruction operand to a virtual register.
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*
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* \param[in] instr The instruction.
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* \param[in] index The operand index.
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* \param[in] number The register number to set.
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* \return true if valid, otherwise false.
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*/
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bool rogue_instr_set_operand_vreg(struct rogue_instr *instr,
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size_t index,
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size_t number)
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{
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ASSERT_INSTR_OPERAND_INDEX(instr, index);
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instr->operands[index].type = ROGUE_OPERAND_TYPE_VREG;
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instr->operands[index].vreg.number = number;
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instr->operands[index].vreg.is_vector = false;
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return true;
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}
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/**
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* \brief Sets a Rogue instruction operand to a virtual register
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* that is a vector type.
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*
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* \param[in] instr The instruction.
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* \param[in] index The operand index.
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* \param[in] component The vector component.
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* \param[in] number The register number to set.
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* \return true if valid, otherwise false.
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*/
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bool rogue_instr_set_operand_vreg_vec(struct rogue_instr *instr,
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size_t index,
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size_t component,
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size_t number)
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{
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ASSERT_INSTR_OPERAND_INDEX(instr, index);
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instr->operands[index].type = ROGUE_OPERAND_TYPE_VREG;
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instr->operands[index].vreg.number = number;
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instr->operands[index].vreg.is_vector = true;
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instr->operands[index].vreg.component = component;
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return true;
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}
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