Mercurial > repos > blastem

comparison vdp.c @ 1928:abc89555f2e0

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Admit defeat on the "trying to write CRAM dots while output is null issue" for now and just add a null check
author Mike Pavone <pavone@retrodev.com>
date Thu, 16 Apr 2020 22:37:43 -0700
parents 039553703c20
children c7e3e3ebb64a
comparison
equal deleted inserted replaced
1927:9fd4bedc1a31 1928:abc89555f2e0
812 addr = address & 0x1F; 812 addr = address & 0x1F;
813 value = (value << 1 & 0xE) | (value << 2 & 0xE0) | (value & 0xE00); 813 value = (value << 1 & 0xE) | (value << 2 & 0xE0) | (value & 0xE00);
814 } 814 }
815 write_cram_internal(context, addr, value); 815 write_cram_internal(context, addr, value);
816 816
817 if (context->hslot >= BG_START_SLOT && ( 817 if (context->output && context->hslot >= BG_START_SLOT && (
818 context->vcounter < context->inactive_start + context->border_bot 818 context->vcounter < context->inactive_start + context->border_bot
819 || context->vcounter > 0x200 - context->border_top 819 || context->vcounter > 0x200 - context->border_top
820 )) { 820 )) {
821 uint8_t bg_end_slot = BG_START_SLOT + (context->regs[REG_MODE_4] & BIT_H40) ? LINEBUF_SIZE/2 : (256+HORIZ_BORDER)/2; 821 uint8_t bg_end_slot = BG_START_SLOT + (context->regs[REG_MODE_4] & BIT_H40) ? LINEBUF_SIZE/2 : (256+HORIZ_BORDER)/2;
822 if (context->hslot < bg_end_slot) { 822 if (context->hslot < bg_end_slot) {