Manage IRQ on writes to INTENB

2025-03-04 10:19:12 -06:00
1 changed files with 3 additions and 0 deletions
@@ -436,6 +436,9 @@ static void vipWriteIO(

        case 0x5F802>>1: /* INTENB */
            sim->vip.intenb = (sim->vip.intenb & mask) | (value & 0xE01F);
+            if (sim->vip.intenb & sim->vip.intpnd)
+                sim->cpu.irq  |=  0x0010;
+            else sim->cpu.irq &= ~0x0010;
            break;
        case 0x5F804>>1: /* INTCLR */
            sim->vip.intpnd &= ~value;