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.include "asm/macros.inc"
.include "global.inc"
.text
arm_func_start OS_EnableInterrupts
OS_EnableInterrupts: ; 0x020CD2FC
mrs r0, cpsr
bic r1, r0, #0x80
msr cpsr_c, r1
and r0, r0, #0x80
bx lr
arm_func_start OS_DisableInterrupts
OS_DisableInterrupts:
mrs r0, cpsr
orr r1, r0, #0x80
msr cpsr_c, r1
and r0, r0, #0x80
bx lr
arm_func_start OS_RestoreInterrupts
OS_RestoreInterrupts:
mrs r1, cpsr
bic r2, r1, #0x80
orr r2, r2, r0
msr cpsr_c, r2
and r0, r1, #0x80
bx lr
arm_func_start OS_DisableInterrupts_IrqAndFiq
OS_DisableInterrupts_IrqAndFiq: ; 0x020CD33C
mrs r0, cpsr
orr r1, r0, #0xc0
msr cpsr_c, r1
and r0, r0, #0xc0
bx lr
arm_func_start OS_RestoreInterrupts_IrqAndFiq
OS_RestoreInterrupts_IrqAndFiq: ; 0x020CD350
mrs r1, cpsr
bic r2, r1, #0xc0
orr r2, r2, r0
msr cpsr_c, r2
and r0, r1, #0xc0
bx lr
arm_func_start OS_GetCpsrIrq
OS_GetCpsrIrq: ; 0x020CD368
mrs r0, cpsr
and r0, r0, #0x80
bx lr
arm_func_start OS_GetProcMode
OS_GetProcMode: ; 0x020CD374
mrs r0, cpsr
and r0, r0, #0x1f
bx lr
arm_func_start OS_SpinWait
OS_SpinWait:
subs r0, r0, #0x4
bhs OS_SpinWait
bx lr
arm_func_start OS_WaitVBlankIntr
OS_WaitVBlankIntr: ; 0x020CD38C
stmdb sp!, {lr}
sub sp, sp, #0x4
mov r0, #0x1
blx SVC_WaitByLoop
mov r0, #0x1
mov r1, r0
bl OS_WaitIrq
add sp, sp, #0x4
ldmia sp!, {lr}
bx lr
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