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nbg0: fix comments

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This commit is contained in:
Zack Buhman 2023-01-27 12:10:05 -08:00
parent ec1dd061eb
commit a7ffb5beed
1 changed files with 2 additions and 2 deletions
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4
vdp2/nbg0.cpp
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@ -79,7 +79,7 @@ void main()
vdp2.reg.BGON = BGON__N0ON;
/* set character format for NBG0 to palettized 2048 color
set bitmap size for NBG0 to 512x256
set enable "cell format" for NBG0
set character size for NBG0 to 1x1 cell */
vdp2.reg.CHCTLA = CHCTLA__N0CHCN__2048_COLOR
| CHCTLA__N0BMEN__CELL_FORMAT
@ -114,7 +114,7 @@ void main()
fill<uint32_t>(&vdp2.vram.u32[(0 / 2)], 0, plane_a_offset);
// "zeroize" plane_a to the 0x40th (64th) character index (an unused/transparent character)
// this creates the '40' indexes in the above picture
// this creates the '40' indexes in the below picture
fill<uint16_t>(&vdp2.vram.u16[(plane_a_offset / 2)], character_offset * 0x40, plane_size);
constexpr int pixel_width = 64;