cmp.c File Reference

#include <sys/types.h>
#include <sys/param.h>
#include <stdint.h>
#include "emu/emu_cpu.h"
#include "emu/emu_cpu_data.h"
#include "emu/emu_memory.h"

Include dependency graph for cmp.c:

Defines
#define	INSTR_CALC(bits, a, b, operation)
#define	INSTR_CALC_AND_SET_FLAGS(bits, cpu, a, b, operation)
Functions
int32_t	instr_cmp_38 (struct emu_cpu *c, struct emu_cpu_instruction *i)
int32_t	instr_cmp_39 (struct emu_cpu *c, struct emu_cpu_instruction *i)
int32_t	instr_cmp_3a (struct emu_cpu *c, struct emu_cpu_instruction *i)
int32_t	instr_cmp_3b (struct emu_cpu *c, struct emu_cpu_instruction *i)
int32_t	instr_cmp_3c (struct emu_cpu *c, struct emu_cpu_instruction *i)
int32_t	instr_cmp_3d (struct emu_cpu *c, struct emu_cpu_instruction *i)
int32_t	instr_group_1_80_cmp (struct emu_cpu *c, struct emu_cpu_instruction *i)
int32_t	instr_group_1_81_cmp (struct emu_cpu *c, struct emu_cpu_instruction *i)
int32_t	instr_group_1_83_cmp (struct emu_cpu *c, struct emu_cpu_instruction *i)

---

Define Documentation

#define INSTR_CALC	(	bits,
		a,
		b,
		operation		)

Value:

UINTOF(bits) operand_a; \
UINTOF(bits) operand_b; \
bcopy(&(a), &operand_a, bits/8); \
bcopy(&(b), &operand_b, bits/8); \
UINTOF(bits) operation_result = operand_a operation operand_b;

#define INSTR_CALC_AND_SET_FLAGS	(	bits,
		cpu,
		a,
		b,
		operation		)

Value:

INSTR_CALC(bits, a, b, operation)                                                               \
INSTR_SET_FLAG_ZF(cpu)                                                                                  \
INSTR_SET_FLAG_PF(cpu)                                                                                  \
INSTR_SET_FLAG_SF(cpu)                                                                                  \
INSTR_SET_FLAG_CF(cpu, operation)                                                               \
INSTR_SET_FLAG_OF(cpu, operation, bits)

---

Function Documentation

int32_t instr_cmp_38	(	struct emu_cpu *	c,
		struct emu_cpu_instruction *	i
	)

References emu_cpu_instruction::ea, INSTR_CALC_AND_SET_FLAGS, MEM_BYTE_READ, emu_cpu_instruction::mod, emu_cpu_instruction::modrm, emu_cpu_instruction::opc, emu_cpu::reg8, and emu_cpu_instruction::rm.

int32_t instr_cmp_39	(	struct emu_cpu *	c,
		struct emu_cpu_instruction *	i
	)

References emu_cpu_instruction::ea, INSTR_CALC_AND_SET_FLAGS, MEM_DWORD_READ, MEM_WORD_READ, emu_cpu_instruction::mod, emu_cpu_instruction::modrm, emu_cpu_instruction::opc, PREFIX_OPSIZE, emu_cpu_instruction::prefixes, emu_cpu::reg, emu_cpu::reg16, and emu_cpu_instruction::rm.

int32_t instr_cmp_3a	(	struct emu_cpu *	c,
		struct emu_cpu_instruction *	i
	)

References emu_cpu_instruction::ea, INSTR_CALC_AND_SET_FLAGS, MEM_BYTE_READ, emu_cpu_instruction::mod, emu_cpu_instruction::modrm, emu_cpu_instruction::opc, emu_cpu::reg8, and emu_cpu_instruction::rm.

int32_t instr_cmp_3b	(	struct emu_cpu *	c,
		struct emu_cpu_instruction *	i
	)

References emu_cpu_instruction::ea, INSTR_CALC_AND_SET_FLAGS, MEM_DWORD_READ, MEM_WORD_READ, emu_cpu_instruction::mod, emu_cpu_instruction::modrm, emu_cpu_instruction::opc, PREFIX_OPSIZE, emu_cpu_instruction::prefixes, emu_cpu::reg, emu_cpu::reg16, and emu_cpu_instruction::rm.

int32_t instr_cmp_3c	(	struct emu_cpu *	c,
		struct emu_cpu_instruction *	i
	)

References al, emu_cpu_instruction::imm8, INSTR_CALC_AND_SET_FLAGS, and emu_cpu::reg8.

int32_t instr_cmp_3d	(	struct emu_cpu *	c,
		struct emu_cpu_instruction *	i
	)

References ax, eax, emu_cpu_instruction::imm, emu_cpu_instruction::imm16, INSTR_CALC_AND_SET_FLAGS, PREFIX_OPSIZE, emu_cpu_instruction::prefixes, emu_cpu::reg, and emu_cpu::reg16.

int32_t instr_group_1_80_cmp	(	struct emu_cpu *	c,
		struct emu_cpu_instruction *	i
	)

References emu_cpu_instruction::ea, emu_cpu_instruction::imm8, INSTR_CALC_AND_SET_FLAGS, MEM_BYTE_READ, MEM_BYTE_WRITE, emu_cpu_instruction::mod, emu_cpu_instruction::modrm, emu_cpu::reg8, and emu_cpu_instruction::rm.

Referenced by instr_group_1_80().

int32_t instr_group_1_81_cmp	(	struct emu_cpu *	c,
		struct emu_cpu_instruction *	i
	)

References emu_cpu_instruction::ea, emu_cpu_instruction::imm, emu_cpu_instruction::imm16, INSTR_CALC_AND_SET_FLAGS, MEM_DWORD_READ, MEM_WORD_READ, emu_cpu_instruction::mod, emu_cpu_instruction::modrm, PREFIX_OPSIZE, emu_cpu_instruction::prefixes, emu_cpu::reg, emu_cpu::reg16, and emu_cpu_instruction::rm.

Referenced by instr_group_1_81().

int32_t instr_group_1_83_cmp	(	struct emu_cpu *	c,
		struct emu_cpu_instruction *	i
	)

References emu_cpu_instruction::ea, emu_cpu_instruction::imm8, INSTR_CALC_AND_SET_FLAGS, MEM_DWORD_READ, MEM_WORD_READ, emu_cpu_instruction::mod, emu_cpu_instruction::modrm, PREFIX_OPSIZE, emu_cpu_instruction::prefixes, emu_cpu::reg, emu_cpu::reg16, and emu_cpu_instruction::rm.

Referenced by instr_group_1_83().