diff -r ffa851df0825 -r 2fb8b9db1c86 symbian-qemu-0.9.1-12/qemu-symbian-svp/hw/mips_int.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/symbian-qemu-0.9.1-12/qemu-symbian-svp/hw/mips_int.c Fri Jul 31 15:01:17 2009 +0100 @@ -0,0 +1,45 @@ +#include "hw.h" +#include "mips.h" +#include "cpu.h" + +/* Raise IRQ to CPU if necessary. It must be called every time the active + IRQ may change */ +void cpu_mips_update_irq(CPUState *env) +{ + if ((env->CP0_Status & (1 << CP0St_IE)) && + !(env->CP0_Status & (1 << CP0St_EXL)) && + !(env->CP0_Status & (1 << CP0St_ERL)) && + !(env->hflags & MIPS_HFLAG_DM)) { + if ((env->CP0_Status & env->CP0_Cause & CP0Ca_IP_mask) && + !(env->interrupt_request & CPU_INTERRUPT_HARD)) { + cpu_interrupt(env, CPU_INTERRUPT_HARD); + } + } else + cpu_reset_interrupt(env, CPU_INTERRUPT_HARD); +} + +static void cpu_mips_irq_request(void *opaque, int irq, int level) +{ + CPUState *env = (CPUState *)opaque; + + if (irq < 0 || irq > 7) + return; + + if (level) { + env->CP0_Cause |= 1 << (irq + CP0Ca_IP); + } else { + env->CP0_Cause &= ~(1 << (irq + CP0Ca_IP)); + } + cpu_mips_update_irq(env); +} + +void cpu_mips_irq_init_cpu(CPUState *env) +{ + qemu_irq *qi; + int i; + + qi = qemu_allocate_irqs(cpu_mips_irq_request, env, 8); + for (i = 0; i < 8; i++) { + env->irq[i] = qi[i]; + } +}