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vdp1: add color mode and size bits

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This commit is contained in:
Zack Buhman 2023-01-28 17:08:38 -08:00
parent 1cd24f8f30
commit 103bdbc190
1 changed files with 12 additions and 1 deletions
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13
vdp1.h
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@ -73,7 +73,13 @@ enum pmod_bit {
PMOD__MESH = (1 << 8),
PMOD__ECD = (1 << 7),
PMOD__SPD = (1 << 6),
#define PMOD__COLOR_MODE ( << 3)
#define PMOD__COLOR_MODE__COLOR_BANK_16 (0b000 << 3)
#define PMOD__COLOR_MODE__LOOKUP_TABLE_16 (0b001 << 3)
#define PMOD__COLOR_MODE__COLOR_BANK_64 (0b010 << 3)
#define PMOD__COLOR_MODE__COLOR_BANK_128 (0b011 << 3)
#define PMOD__COLOR_MODE__COLOR_BANK_256 (0b100 << 3)
#define PMOD__COLOR_MODE__RGB (0b101 << 3)
#define PMOD__COLOR_CALCULATION ( << 0)
};
@ -81,6 +87,11 @@ enum colr_bit {
COLR__RGB = (1 << 15)
};
//enum size_bit {
#define SIZE__Y(n) (n << 0)
#define SIZE__X(n) ((n >> 2) << 7)
//};
/* memory offsets */
typedef union vdp1_vram {