Mercurial > repos > blastem
diff blastem.c @ 344:b46771135442
Handle busack across frame boundary
author | Mike Pavone <pavone@retrodev.com> |
---|---|
date | Sun, 19 May 2013 11:38:15 -0700 |
parents | 467bfa17004a |
children | 29d2ca563499 |
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--- a/blastem.c Sat May 18 11:44:42 2013 -0700 +++ b/blastem.c Sun May 19 11:38:15 2013 -0700 @@ -208,6 +208,14 @@ vdp_adjust_cycles(v_context, mclks_per_frame); io_adjust_cycles(&gamepad_1, context->current_cycle, mclks_per_frame/MCLKS_PER_68K); io_adjust_cycles(&gamepad_2, context->current_cycle, mclks_per_frame/MCLKS_PER_68K); + if (busack_cycle != CYCLE_NEVER) { + if (busack_cycle > mclks_per_frame/MCLKS_PER_68K) { + busack_cycle -= mclks_per_frame/MCLKS_PER_68K; + } else { + busack_cycle = CYCLE_NEVER; + busack = new_busack; + } + } context->current_cycle -= mclks_per_frame/MCLKS_PER_68K; if (z_context->current_cycle >= mclks_per_frame/MCLKS_PER_Z80) { z_context->current_cycle -= mclks_per_frame/MCLKS_PER_Z80; @@ -257,6 +265,14 @@ vdp_adjust_cycles(v_context, mclks_per_frame); io_adjust_cycles(&gamepad_1, v_context->cycles/MCLKS_PER_68K, mclks_per_frame/MCLKS_PER_68K); io_adjust_cycles(&gamepad_2, v_context->cycles/MCLKS_PER_68K, mclks_per_frame/MCLKS_PER_68K); + if (busack_cycle != CYCLE_NEVER) { + if (busack_cycle > mclks_per_frame/MCLKS_PER_68K) { + busack_cycle -= mclks_per_frame/MCLKS_PER_68K; + } else { + busack_cycle = CYCLE_NEVER; + busack = new_busack; + } + } } } context->current_cycle = v_context->cycles / MCLKS_PER_68K; @@ -274,6 +290,14 @@ vdp_adjust_cycles(v_context, mclks_per_frame); io_adjust_cycles(&gamepad_1, v_context->cycles/MCLKS_PER_68K, mclks_per_frame/MCLKS_PER_68K); io_adjust_cycles(&gamepad_2, v_context->cycles/MCLKS_PER_68K, mclks_per_frame/MCLKS_PER_68K); + if (busack_cycle != CYCLE_NEVER) { + if (busack_cycle > mclks_per_frame/MCLKS_PER_68K) { + busack_cycle -= mclks_per_frame/MCLKS_PER_68K; + } else { + busack_cycle = CYCLE_NEVER; + busack = new_busack; + } + } } } if (blocked < 0) {