Subject: RE: [gbadev] Interrupt problem solved




It turns out I still had problems with my interrupt code. Seemingly calling
a wait vertical blank further up the call stack would cause problems. Here
is a fix for the earlier interrupt code...

vblank:
ldr a1, =g_test
mov r2, #1
str r2, [a1]

ldr r0, =Interrupt__Handler
bx r0

Instead of this:

stmfd sp!, {lr}
bl Interrupt__Handler
ldmfd sp!, {lr}

In addition to the assembler change, you need to reenable interrupts in your
C function. At the end use something like:

void Interrupt__Handler(void)
{
//Game__UpdateCritical(&g_Game);

IME = 0x0001;
}