ToyCComp/asm.h at main · mgtm98/ToyCComp · GitHub

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#ifndef _ASM_H_
#define _ASM_H_

#include <stdio.h>

#include "codegen.h"

typedef __int8_t Register;
typedef __uint32_t LabelId;

typedef enum
{
    SIZE_8bit = 8,
    SIZE_16bit = 16,
    SIZE_32bit = 32,
    SIZE_64bit = 64
} RegSize_e;

typedef enum ASMSymbolType
{
    ASM_SYMBOL_UNINTIALIZED,
    ASM_SYMBOL_INT,
    ASM_SYMBOL_STR
} ASMSymbolType;

typedef union ASMSymbolValue
{
    int num;
    char *str;
} ASMSymbolValue;

extern Register asm_NoReg;
extern Register asm_RAX;

void asm_wrapup(CodeGenerator_t *gen);

Register asm_init_register(CodeGenerator_t *gen, int value);
void asm_set_register(CodeGenerator_t *gen, Register dest, Register src, RegSize_e size, bool free_src);

Register asm_add(CodeGenerator_t *gen, Register r1, Register r2);
Register asm_sub(CodeGenerator_t *gen, Register r1, Register r2);
Register asm_mul(CodeGenerator_t *gen, Register r1, Register r2);
Register asm_div(CodeGenerator_t *gen, Register r1, Register r2);
void asm_sll(CodeGenerator_t *gen, Register r1, __uint8_t val);

Register asm_comp_eq(CodeGenerator_t *gen, Register r1, Register r2);
Register asm_comp_ne(CodeGenerator_t *gen, Register r1, Register r2);
Register asm_comp_gt(CodeGenerator_t *gen, Register r1, Register r2);
Register asm_comp_ge(CodeGenerator_t *gen, Register r1, Register r2);
Register asm_comp_lt(CodeGenerator_t *gen, Register r1, Register r2);
Register asm_comp_le(CodeGenerator_t *gen, Register r1, Register r2);

LabelId asm_generate_label();
void asm_lbl(CodeGenerator_t *gen, LabelId lbl);

void asm_jmp(CodeGenerator_t *gen, LabelId lbl);
void asm_jmp_eq(CodeGenerator_t *gen, Register r, int val, LabelId lbl);
void asm_jmp_ne(CodeGenerator_t *gen, Register r, int val, LabelId lbl);
// void asm_jmp_gt(CodeGenerator_t *gen, Register r1, Register r2, LabelId lbl);
// void asm_jmp_ge(CodeGenerator_t *gen, Register r1, Register r2, LabelId lbl);
// void asm_jmp_lt(CodeGenerator_t *gen, Register r1, Register r2, LabelId lbl);
// void asm_jmp_le(CodeGenerator_t *gen, Register r1, Register r2, LabelId lbl);

void asm_add_global_var(CodeGenerator_t *gen, char *var_name, RegSize_e size, size_t number_of_elements);
void asm_set_global_var(CodeGenerator_t *gen, char *var_name, Register r);
void asm_set_global_var_initial_val(CodeGenerator_t *gen, char *var_name, ASMSymbolValue value, ASMSymbolType type);
char *asm_generate_string_lit(CodeGenerator_t *gen, char *str);
Register asm_get_global_var(CodeGenerator_t *gen, char *var_name);
Register asm_address_of(CodeGenerator_t *gen, char *var_name);

Register asm_load_mem(CodeGenerator_t *gen, Register addr, RegSize_e size);
void asm_store_mem(CodeGenerator_t *gen, Register addr, Register val, RegSize_e size);

void asm_generate_function_prologue(CodeGenerator_t *gen, char *func_name);
void asm_generate_function_epilogue(CodeGenerator_t *gen);
Register asm_generate_func_call(CodeGenerator_t *gen, char *func_name, Register arg1, bool need_return);
void asm_generate_func_return(CodeGenerator_t *gen, Register r, RegSize_e size);

#endif