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typedef enum Operator {
// Arithmetic ops.
OP_ADD,
OP_SUB,
OP_MUL,
OP_DIV,
OP_MOD,
// Load/store/copy operations.
OP_LD8,
OP_LD16,
OP_LD32,
OP_LD64,
OP_ST8,
OP_ST16,
OP_ST32,
OP_ST64,
OP_CP8,
OP_CP16,
OP_CP32,
OP_CP64,
// Bit fiddling operations.
OP_NOT,
OP_AND,
OP_OR,
OP_XOR,
OP_LSHIFT,
OP_RSHIFT,
OP_LROT,
OP_RROT,
// (Un)conditional jump operations.
OP_LABEL,
OP_JMP,
OP_JMP_EQ,
OP_JMP_NEQ,
OP_JMP_GT,
OP_JMP_LT,
OP_JMP_GE,
OP_JMP_LE,
} Operator;
typedef enum OperandType {
OP_TYPE_REG,
OP_TYPE_CONST,
OP_TYPE_LABEL,
} OperandType;
typedef struct Operand {
OperandType type;
union {
struct {
size_t num;
} reg;
struct {
size_t num;
} label;
struct {
union {
u64 uval;
s64 sval;
};
} const;
};
} Operand;
typedef struct Instruction {
Operator op;
Operand dst;
Operand src_a;
Operand src_b;
} Instruction;
typedef struct LineInfo {
size_t line;
size_t col;
} LineInfo;
typedef struct ProgramBASM {
Instruction *inst;
LineInfo *lines;
} ProgramBASM;
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