Mercurial > repos > blastem
diff blastem.c @ 717:22dbdf50d33c
Small correction to VBLANK flag timing. Fixed some inconsistencies in interrupt timing calculation.
| author | Michael Pavone <pavone@retrodev.com> |
|---|---|
| date | Tue, 19 May 2015 23:23:53 -0700 |
| parents | 72ab94527a8a |
| children | eaba6789f316 |
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--- a/blastem.c Sun May 17 20:03:27 2015 -0700 +++ b/blastem.c Tue May 19 23:23:53 2015 -0700 @@ -125,6 +125,7 @@ void adjust_int_cycle(m68k_context * context, vdp_context * v_context) { + //static int old_int_cycle = CYCLE_NEVER; genesis_context *gen = context->system; if (context->sync_cycle - context->current_cycle > gen->max_cycles) { context->sync_cycle = context->current_cycle + gen->max_cycles; @@ -147,6 +148,10 @@ } } } + /*if (context->int_cycle != old_int_cycle) { + printf("int cycle changed to: %d, level: %d @ %d(%d), frame: %d, vcounter: %d, hslot: %d, mask: %d, hint_counter: %d\n", context->int_cycle, context->int_num, v_context->cycles, context->current_cycle, v_context->frame, v_context->vcounter, v_context->hslot, context->status & 0x7, v_context->hint_counter); + old_int_cycle = context->int_cycle; + }*/ context->target_cycle = context->int_cycle < context->sync_cycle ? context->int_cycle : context->sync_cycle; /*printf("Cyc: %d, Trgt: %d, Int Cyc: %d, Int: %d, Mask: %X, V: %d, H: %d, HICount: %d, HReg: %d, Line: %d\n", @@ -242,6 +247,7 @@ context->sync_cycle = gen->frame_end; //printf("Set sync cycle to: %d @ %d, vcounter: %d, hslot: %d\n", context->sync_cycle, context->current_cycle, v_context->vcounter, v_context->hslot); if (context->int_ack) { + printf("acknowledging %d @ %d:%d, vcounter: %d, hslot: %d\n", context->int_ack, context->current_cycle, v_context->cycles, v_context->vcounter, v_context->hslot); vdp_int_ack(v_context, context->int_ack); context->int_ack = 0; }