void cpu_check_irqs(CPUSPARCState *env) { uint32_t pil = env->pil_in | (env->softint & ~(SOFTINT_TIMER | SOFTINT_STIMER)); /* check if TM or SM in SOFTINT are set setting these also causes interrupt 14 */ if (env->softint & (SOFTINT_TIMER | SOFTINT_STIMER)) { pil |= 1 << 14; } /* The bit corresponding to psrpil is (1<< psrpil), the next bit is (2 << psrpil). */ if (pil < (2 << env->psrpil)){ if (env->interrupt_request & CPU_INTERRUPT_HARD) { CPUIRQ_DPRINTF("Reset CPU IRQ (current interrupt %x)\n", env->interrupt_index); env->interrupt_index = 0; cpu_reset_interrupt(env, CPU_INTERRUPT_HARD); } return; } if (cpu_interrupts_enabled(env)) { unsigned int i; for (i = 15; i > env->psrpil; i--) { if (pil & (1 << i)) { int old_interrupt = env->interrupt_index; int new_interrupt = TT_EXTINT | i; if (env->tl > 0 && cpu_tsptr(env)->tt > new_interrupt) { CPUIRQ_DPRINTF("Not setting CPU IRQ: TL=%d " "current %x >= pending %x\n", env->tl, cpu_tsptr(env)->tt, new_interrupt); } else if (old_interrupt != new_interrupt) { env->interrupt_index = new_interrupt; CPUIRQ_DPRINTF("Set CPU IRQ %d old=%x new=%x\n", i, old_interrupt, new_interrupt); cpu_interrupt(env, CPU_INTERRUPT_HARD); } break; } } } else if (env->interrupt_request & CPU_INTERRUPT_HARD) { CPUIRQ_DPRINTF("Interrupts disabled, pil=%08x pil_in=%08x softint=%08x " "current interrupt %x\n", pil, env->pil_in, env->softint, env->interrupt_index); env->interrupt_index = 0; cpu_reset_interrupt(env, CPU_INTERRUPT_HARD); } }