diff options
author | Mike Pavone <pavone@retrodev.com> | 2013-05-06 00:57:56 -0700 |
---|---|---|
committer | Mike Pavone <pavone@retrodev.com> | 2013-05-06 00:57:56 -0700 |
commit | 4edbf96208daa3168a84456448614b659f4f1c57 (patch) | |
tree | 825f00164b21e133f9fee001f94dfc9d74b524f4 | |
parent | 3eb77ade74ef4fe9f8a7e1eb59e56010a3de778e (diff) |
Make sure all rendering operations mask CRAM with 0xEEE before using it
-rw-r--r-- | vdp.c | 4 |
1 files changed, 2 insertions, 2 deletions
@@ -607,7 +607,7 @@ void render_map_output(uint32_t line, int32_t col, vdp_context * context) pixel = context->regs[REG_BG_COLOR] & 0x3F; src = FBUF_SRC_BG; } - *dst = context->cram[pixel & 0x3F] | ((pixel & BUF_BIT_PRIORITY) ? FBUF_BIT_PRIORITY : 0) | src; + *dst = (context->cram[pixel & 0x3F] & 0xEEE) | ((pixel & BUF_BIT_PRIORITY) ? FBUF_BIT_PRIORITY : 0) | src; } } } else { @@ -1011,7 +1011,7 @@ void check_render_bg(vdp_context * context, int32_t line) end = start + 2; } } - uint16_t color = context->cram[context->regs[REG_BG_COLOR] & 0x3F]; + uint16_t color = (context->cram[context->regs[REG_BG_COLOR] & 0x3F] & 0xEEE); while (start != end) { *start = color; ++start; |