Mercurial > repos > blastem
diff blastem.c @ 450:3758bcdae5de
Fix bug that caused a DMA fill to start after another DMA operation completed if the FIFO is not empty
| author | Mike Pavone <pavone@retrodev.com> |
|---|---|
| date | Sun, 01 Sep 2013 12:11:28 -0700 |
| parents | e730fc040169 |
| children | 608815ab4ff2 |
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--- a/blastem.c Sat Jul 20 23:49:31 2013 -0700 +++ b/blastem.c Sun Sep 01 12:11:28 2013 -0700 @@ -219,7 +219,7 @@ if (gen->ym->write_cycle != CYCLE_NEVER) { gen->ym->write_cycle = gen->ym->write_cycle >= mclks_per_frame/MCLKS_PER_68K ? gen->ym->write_cycle - mclks_per_frame/MCLKS_PER_68K : 0; } - //printf("reached frame end | 68K Cycles: %d, MCLK Cycles: %d\n", context->current_cycle, mclks); + printf("reached frame end | 68K Cycles: %d, MCLK Cycles: %d\n", context->current_cycle, mclks); vdp_run_context(v_context, mclks_per_frame); if (!headless) { @@ -284,6 +284,7 @@ vdp_run_dma_done(v_context, mclks_per_frame); if (v_context->cycles >= mclks_per_frame) { if (!headless) { + printf("reached frame end | 68K Cycles: %d, MCLK Cycles: %d\n", context->current_cycle, v_context->cycles); wait_render_frame(v_context, frame_limit); } vdp_adjust_cycles(v_context, mclks_per_frame); @@ -301,7 +302,7 @@ } } } - context->current_cycle = v_context->cycles / MCLKS_PER_68K; + //context->current_cycle = v_context->cycles / MCLKS_PER_68K; } } else if(vdp_port < 8) { blocked = vdp_control_port_write(v_context, value); @@ -343,6 +344,7 @@ exit(1); } if (v_context->cycles != before_cycle) { + printf("68K paused for %d cycles at cycle %d\n", v_context->cycles / MCLKS_PER_68K - context->current_cycle, context->current_cycle); context->current_cycle = v_context->cycles / MCLKS_PER_68K; } } else if (vdp_port < 0x18) {