Some Z80 interrupt fixes

1 files changed, 2 insertions, 2 deletions

diff --git a/blastem.c b/blastem.c
index a25bba3..c16a178 100644
--- a/blastem.c
+++ b/blastem.c
@@ -170,8 +170,8 @@ void sync_z80(z80_context * z_context, uint32_t mclks)
 		z_context->sync_cycle = mclks / MCLKS_PER_Z80;
 		uint32_t vint_cycle = vdp_next_vint_z80(gen->vdp) / MCLKS_PER_Z80;
 		while (z_context->current_cycle < z_context->sync_cycle) {
-			if (z_context->iff1 && z_context->current_cycle < ZVINT_CYCLE) {
-				z_context->int_cycle = vint_cycle;
+			if (z_context->iff1 && z_context->current_cycle < vint_cycle) {
+				z_context->int_cycle = vint_cycle < z_context->int_enable_cycle ? z_context->int_enable_cycle : vint_cycle;
 			}
 			z_context->target_cycle = z_context->sync_cycle < z_context->int_cycle ? z_context->sync_cycle : z_context->int_cycle;
 			dprintf("Running Z80 from cycle %d to cycle %d. Native PC: %p\n", z_context->current_cycle, z_context->sync_cycle, z_context->native_pc);