--- /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];
+ }
+}