pmd-sky/src/main_0207B848.c

#include "main_0207B848.h"

asm u8 ClearIrqFlag()
{
	mrs r0, cpsr
	bic r1, r0, #0x80
	msr cpsr_c, r1
	and r0, r0, #0x80
	bx lr
}

asm u8 EnableIrqFlag()
{
	mrs r0, cpsr
	orr r1, r0, #0x80
	msr cpsr_c, r1
	and r0, r0, #0x80
	bx lr
}

asm u8 SetIrqFlag(u8 flag)
{
	mrs r1, cpsr
	bic r2, r1, #0x80
	orr r2, r2, r0
	msr cpsr_c, r2
	and r0, r1, #0x80
	bx lr
}

asm u8 EnableIrqFiqFlags(void)
{
	mrs r0, cpsr
	orr r1, r0, #0xc0
	msr cpsr_c, r1
	and r0, r0, #0xc0
	bx lr
}

asm u8 SetIrqFiqFlags(u8 flags)
{
	mrs r1, cpsr
	bic r2, r1, #0xc0
	orr r2, r2, r0
	msr cpsr_c, r2
	and r0, r1, #0xc0
	bx lr
}

asm u8 GetIrqFlag()
{
	mrs r0, cpsr
	and r0, r0, #0x80
	bx lr
}

asm u8 GetProcessorMode()
{
	mrs r0, cpsr
	and r0, r0, #0x1f
	bx lr
}