rol.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 dependency graph for rol.c:

Defines
#define	INSTR_CALC(bits, a, b, cpu)
#define	INSTR_CALC_AND_SET_FLAGS(bits, cpu, a, b)
Functions
int32_t	instr_group_2_c0_rol (struct emu_cpu *c, struct emu_cpu_instruction *i)
int32_t	instr_group_2_c1_rol (struct emu_cpu *c, struct emu_cpu_instruction *i)
int32_t	instr_group_2_d0_rol (struct emu_cpu *c, struct emu_cpu_instruction *i)
int32_t	instr_group_2_d1_rol (struct emu_cpu *c, struct emu_cpu_instruction *i)
int32_t	instr_group_2_d2_rol (struct emu_cpu *c, struct emu_cpu_instruction *i)
int32_t	instr_group_2_d3_rol (struct emu_cpu *c, struct emu_cpu_instruction *i)

---

Define Documentation

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

Value:

UINTOF(bits) operation_result = (a); \
uint8_t operand_b = (b); \
{ \
        operand_b %= sizeof(operation_result) * 8; \
        operation_result = operation_result << operand_b | operation_result >> (bits - operand_b); \
        if( operation_result & 1 ) \
        { \
                CPU_FLAG_SET(cpu, f_cf); \
        } \
        if( operand_b == 1 ) \
        { \
                if( (operation_result >> (bits - 1)) ^ (cpu->eflags >> f_cf) ) \
                { \
                        CPU_FLAG_SET(cpu, f_of); \
                } \
                else \
                { \
                        CPU_FLAG_UNSET(cpu, f_of); \
                } \
        } \
        a = operation_result; \
}

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

Value:

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

---

Function Documentation

int32_t instr_group_2_c0_rol	(	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_2_c0().

int32_t instr_group_2_c1_rol	(	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_DWORD_WRITE, MEM_WORD_READ, MEM_WORD_WRITE, 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_2_c1().

int32_t instr_group_2_d0_rol	(	struct emu_cpu *	c,
		struct emu_cpu_instruction *	i
	)

References emu_cpu_instruction::ea, 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_2_d0().

int32_t instr_group_2_d1_rol	(	struct emu_cpu *	c,
		struct emu_cpu_instruction *	i
	)

References emu_cpu_instruction::ea, INSTR_CALC_AND_SET_FLAGS, MEM_DWORD_READ, MEM_DWORD_WRITE, MEM_WORD_READ, MEM_WORD_WRITE, 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_2_d1().

int32_t instr_group_2_d2_rol	(	struct emu_cpu *	c,
		struct emu_cpu_instruction *	i
	)

References cl, emu_cpu_instruction::ea, 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_2_d2().

int32_t instr_group_2_d3_rol	(	struct emu_cpu *	c,
		struct emu_cpu_instruction *	i
	)

References cl, emu_cpu_instruction::ea, INSTR_CALC_AND_SET_FLAGS, MEM_DWORD_READ, MEM_DWORD_WRITE, MEM_WORD_READ, MEM_WORD_WRITE, emu_cpu_instruction::mod, emu_cpu_instruction::modrm, PREFIX_OPSIZE, emu_cpu_instruction::prefixes, emu_cpu::reg, emu_cpu::reg16, emu_cpu::reg8, and emu_cpu_instruction::rm.

Referenced by instr_group_2_d3().