cmps.c File Reference

#include <stdint.h>
#include <errno.h>
#include "emu/emu.h"
#include "emu/emu_cpu.h"
#include "emu/emu_cpu_data.h"
#include "emu/emu_cpu_stack.h"
#include "emu/emu_memory.h"
#include <stdio.h>

Include dependency graph for cmps.c:

Defines
#define	INSTR_CALC(bits, a, b)
#define	INSTR_CALC_AND_SET_FLAGS(bits, cpu, a, b)
#define	INSTR_CALC_EDI_ESI(cpu, bits)
Functions
int32_t	instr_cmps_a6 (struct emu_cpu *c, struct emu_cpu_instruction *i)
int32_t	instr_cmps_a7 (struct emu_cpu *c, struct emu_cpu_instruction *i)

---

Define Documentation

#define INSTR_CALC	(	bits,
		a,
		b		)

Value:

UINTOF(bits) operand_a = a; \
UINTOF(bits) operand_b = b; \
UINTOF(bits) operation_result = operand_a - operand_b;

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

Value:

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

#define INSTR_CALC_EDI_ESI	(	cpu,
		bits		)

Value:

{ \
        if ( !CPU_FLAG_ISSET(cpu,f_df) ) \
        { \
                cpu->reg[edi]+=bits/8; \
                cpu->reg[esi]+=bits/8; \
        } \
        else \
        { \
                cpu->reg[edi]-=bits/8; \
                cpu->reg[esi]-=bits/8; \
        } \
}

Referenced by instr_cmps_a6(), and instr_cmps_a7().

---

Function Documentation

int32_t instr_cmps_a6	(	struct emu_cpu *	c,
		struct emu_cpu_instruction *	i
	)

References CPU_FLAG_ISSET, ecx, edi, emu_memory_segment_get(), emu_memory_segment_select(), esi, f_zf, INSTR_CALC_AND_SET_FLAGS, INSTR_CALC_EDI_ESI, emu_cpu::mem, MEM_BYTE_READ, PREFIX_ADSIZE, PREFIX_F3, emu_cpu_instruction::prefixes, emu_cpu::reg, emu_cpu::repeat_current_instr, s_ds, and s_es.

Here is the call graph for this function:

int32_t instr_cmps_a7	(	struct emu_cpu *	c,
		struct emu_cpu_instruction *	i
	)

References edi, emu_memory_segment_get(), emu_memory_segment_select(), esi, INSTR_CALC_AND_SET_FLAGS, INSTR_CALC_EDI_ESI, emu_cpu::mem, MEM_DWORD_READ, MEM_WORD_READ, PREFIX_ADSIZE, PREFIX_OPSIZE, emu_cpu_instruction::prefixes, emu_cpu::reg, s_ds, and s_es.

Here is the call graph for this function: