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comparison vdp.c @ 1869:dc94354eab66

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Fix accuracy bugs used by Novedicus to detect BlastEm/Exodus
author Michael Pavone <pavone@retrodev.com>
date Mon, 24 Jun 2019 23:47:16 -0700
parents 84f16a804ce5
children e75b788caedd
comparison
equal deleted inserted replaced
1868:bfacedbae5f0 1869:dc94354eab66
3629 3629
3630 context->cd = VRAM_READ8; 3630 context->cd = VRAM_READ8;
3631 return context->prefetch; 3631 return context->prefetch;
3632 } 3632 }
3633 3633
3634 uint16_t vdp_test_port_read(vdp_context * context)
3635 {
3636 //TODO: Find out what actually gets returned here
3637 return context->test_port;
3638 }
3639
3640 void vdp_adjust_cycles(vdp_context * context, uint32_t deduction) 3634 void vdp_adjust_cycles(vdp_context * context, uint32_t deduction)
3641 { 3635 {
3642 context->cycles -= deduction; 3636 context->cycles -= deduction;
3643 if (context->pending_vint_start >= deduction) { 3637 if (context->pending_vint_start >= deduction) {
3644 context->pending_vint_start -= deduction; 3638 context->pending_vint_start -= deduction;