diff options
Diffstat (limited to 'blastem.c')
| -rw-r--r-- | blastem.c | 4 |
1 files changed, 3 insertions, 1 deletions
@@ -162,14 +162,16 @@ uint8_t new_busack = 0; void sync_z80(z80_context * z_context, uint32_t mclks) { if (z80_enabled && !reset && !busreq) { + genesis_context * gen = z_context->system; if (need_reset) { z80_reset(z_context); need_reset = 0; } 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 = ZVINT_CYCLE; + z_context->int_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); |