Mercurial > repos > blastem
diff vdp.c @ 720:15d9359fd771
Add some tests for hint timing and fix it properly this time.
| author | Michael Pavone <pavone@retrodev.com> |
|---|---|
| date | Wed, 20 May 2015 22:27:51 -0700 |
| parents | 019d27995e32 |
| children | 8f5339961903 |
line wrap: on
line diff
--- a/vdp.c Wed May 20 19:05:11 2015 -0700 +++ b/vdp.c Wed May 20 22:27:51 2015 -0700 @@ -1443,6 +1443,19 @@ void vdp_advance_line(vdp_context *context) { context->vcounter++; + context->vcounter &= 0x1FF; + if (context->flags2 & FLAG2_REGION_PAL) { + if (context->latched_mode & BIT_PAL) { + if (context->vcounter == 0x10B) { + context->vcounter = 0x1D2; + } + } else if (context->vcounter == 0x103){ + context->vcounter = 0x1CA; + } + } else if (!(context->latched_mode & BIT_PAL) && context->vcounter == 0xEB) { + context->vcounter = 0x1E5; + } + if (context->vcounter > (context->latched_mode & BIT_PAL ? PAL_INACTIVE_START : NTSC_INACTIVE_START)) { context->hint_counter = context->regs[REG_HINT]; } else if (context->hint_counter) { @@ -1565,19 +1578,6 @@ } else { vdp_advance_line(context); } - context->vcounter &= 0x1FF; - if (context->flags2 & FLAG2_REGION_PAL) { - if (context->latched_mode & BIT_PAL) { - if (context->vcounter == 0x10B) { - context->vcounter = 0x1D2; - } - } else if (context->vcounter == 0x103){ - context->vcounter = 0x1CA; - } - } else if (!(context->latched_mode & BIT_PAL) && context->vcounter == 0xEB) { - context->vcounter = 0x1E5; - } - } }