101 lines
3.1 KiB
C++
101 lines
3.1 KiB
C++
#pragma once
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#include <stdint.h>
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typedef void (*ASM_SYNTAX_FN)(uint32_t * opcode);
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typedef struct
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{
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const char * name;
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uint32_t val;
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uint32_t (*base)(uint32_t val); // Value shift
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const ASM_SYNTAX_FN * syntax; // Arguments
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} ASM_INSTRUCTION;
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typedef struct
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{
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const char * name;
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uint32_t val;
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} ASM_REGISTER;
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enum ASM_PARSE_ERROR
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{
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ERR_NONE,
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ERR_EXPECTED_REG,
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ERR_INVALID_REG,
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ERR_EXPECTED_VAL,
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ERR_UNKNOWN_CMD
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};
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class CAssembler
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{
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private:
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static uint32_t m_Address;
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static ASM_PARSE_ERROR m_ParseError;
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public:
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static bool AssembleLine(const char * line, uint32_t * opcode, uint32_t address = 0x00000000);
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private:
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static const ASM_SYNTAX_FN syn_jump[];
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static const ASM_SYNTAX_FN syn_loadstore[];
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static const ASM_SYNTAX_FN syn_arith[];
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static const ASM_SYNTAX_FN syn_arith2[];
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static const ASM_SYNTAX_FN syn_shiftv[];
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static const ASM_SYNTAX_FN syn_arith_i[];
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static const ASM_SYNTAX_FN syn_load_i[];
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static const ASM_SYNTAX_FN syn_branch_z[];
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static const ASM_SYNTAX_FN syn_branch[];
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static const ASM_SYNTAX_FN syn_branch_unc[];
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static const ASM_SYNTAX_FN syn_trap_i[];
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static const ASM_SYNTAX_FN syn_shift[];
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static const ASM_SYNTAX_FN syn_mf[];
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static const ASM_SYNTAX_FN syn_jr[];
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static const ASM_SYNTAX_FN syn_jalr[];
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static const ASM_SYNTAX_FN syn_cop1_arith[];
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static const ASM_SYNTAX_FN syn_cop1[];
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static const ASM_SYNTAX_FN syn_cop1_cmp[];
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static const ASM_SYNTAX_FN syn_cop_mv[];
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static const ASM_SYNTAX_FN syn_cache[];
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static const ASM_SYNTAX_FN syn_syscall[];
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static const ASM_INSTRUCTION m_Instructions[];
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static const ASM_REGISTER m_Registers[];
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static char * m_TokContext;
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static const ASM_REGISTER * LookupRegister(char * name);
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static const ASM_INSTRUCTION * LookupInstruction(char * name, int nFallback);
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static void StrToLower(char * str);
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static uint32_t pop_reg();
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static uint32_t pop_val();
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static uint32_t base_op(uint32_t val);
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static uint32_t base_spec(uint32_t val);
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static uint32_t base_spec_jalr_ra(uint32_t val);
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static uint32_t base_regimm(uint32_t val);
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static uint32_t base_cop1_s(uint32_t val);
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static uint32_t base_cop1_d(uint32_t val);
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static uint32_t base_cop1_w(uint32_t val);
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static uint32_t base_cop1_l(uint32_t val);
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static uint32_t base_cop1_bc(uint32_t val);
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static uint32_t base_cop0_co(uint32_t val);
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static uint32_t base_cop0_mv(uint32_t val);
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static uint32_t base_cop1_mv(uint32_t val);
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static void arg_reg_t(uint32_t * opcode);
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static void arg_reg_s(uint32_t * opcode);
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static void arg_reg_d(uint32_t * opcode);
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static void arg_reg_ft(uint32_t * opcode);
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static void arg_reg_fs(uint32_t * opcode);
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static void arg_reg_fd(uint32_t * opcode);
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static void arg_jump(uint32_t * opcode);
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static void arg_imm16(uint32_t * opcode);
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static void arg_bra_target(uint32_t * opcode);
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static void arg_shamt(uint32_t * opcode);
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static void arg_cache_op(uint32_t * opcode);
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static void arg_syscall_code(uint32_t * opcode);
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};
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