Commit 5c6f3eb7 authored by Aurelien Jarno's avatar Aurelien Jarno
Browse files

target/sh4: ignore interrupts in a delay slot 



Delay slots are indivisible, therefore avoid scheduling an interrupt in
the delay slot. However exceptions are possible.

Reviewed-by: default avatarPhilippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: default avatarRichard Henderson <rth@twiddle.net>
Signed-off-by: default avatarAurelien Jarno <aurelien@aurel32.net>
parent 9a562ae7

target/sh4/helper.c

+10 −2
Original line number Diff line number Diff line
@@ -871,8 +871,16 @@ int cpu_sh4_is_cached(CPUSH4State * env, target_ulong addr) 
bool superh_cpu_exec_interrupt(CPUState *cs, int interrupt_request)

{

    if (interrupt_request & CPU_INTERRUPT_HARD) {

        SuperHCPU *cpu = SUPERH_CPU(cs);

        CPUSH4State *env = &cpu->env;



        /* Delay slots are indivisible, ignore interrupts */

        if (env->flags & DELAY_SLOT_MASK) {

            return false;

        } else {

            superh_cpu_do_interrupt(cs);

            return true;

        }

    }

    return false;

}