mul.c File Reference

#include <stdint.h>
#include <errno.h>
#include <string.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 dependency graph for mul.c:

Defines
#define	INSTR_CALC(inbits, outbits, cpu, a, b)
#define	INSTR_SET_FLAGS(cpu, upper_result)
Functions
int32_t	instr_group_3_f6_mul (struct emu_cpu *c, struct emu_cpu_instruction *i)
int32_t	instr_group_3_f7_mul (struct emu_cpu *c, struct emu_cpu_instruction *i)

---

Define Documentation

#define INSTR_CALC	(	inbits,
		outbits,
		cpu,
		a,
		b		)

Value:

UINTOF(inbits) operand_a = a; \
UINTOF(inbits) operand_b = b; \
UINTOF(outbits) operation_result = operand_a * operand_b; \

#define INSTR_SET_FLAGS	(	cpu,
		upper_result		)

Value:

if (upper_result == 0) \
{ \
        CPU_FLAG_UNSET(cpu,f_cf); \
        CPU_FLAG_UNSET(cpu,f_of); \
} \
else \
{ \
        CPU_FLAG_SET(cpu,f_cf); \
        CPU_FLAG_SET(cpu,f_of); \
}

---

Function Documentation

int32_t instr_group_3_f6_mul	(	struct emu_cpu *	c,
		struct emu_cpu_instruction *	i
	)

References al, ax, emu_cpu_instruction::ea, INSTR_CALC, INSTR_SET_FLAGS, MEM_BYTE_READ, emu_cpu_instruction::mod, emu_cpu_instruction::modrm, emu_cpu::reg16, emu_cpu::reg8, emu_cpu_instruction::rm, and WORD_UPPER_TO_BYTE.

Referenced by instr_group_3_f6().

int32_t instr_group_3_f7_mul	(	struct emu_cpu *	c,
		struct emu_cpu_instruction *	i
	)

References al, ax, DWORD_LOWER_TO_WORD, DWORD_UPPER_TO_WORD, dx, emu_cpu_instruction::ea, eax, edx, INSTR_CALC, INSTR_SET_FLAGS, MEM_DWORD_READ, MEM_WORD_READ, emu_cpu_instruction::mod, emu_cpu_instruction::modrm, PREFIX_OPSIZE, emu_cpu_instruction::prefixes, QWORD_LOWER_TO_DWORD, QWORD_UPPER_TO_DWORD, emu_cpu::reg, emu_cpu::reg16, and emu_cpu_instruction::rm.

Referenced by instr_group_3_f7().