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[eradicate] / src / dos / vga.h
1 #ifndef VGA_H_
2 #define VGA_H_
3
4 #include "inttypes.h"
5
6 int vga_setmode(int mode);
7
8 #ifdef __WATCOMC__
9 void vga_setpal(int16_t idx, uint8_t r, uint8_t g, uint8_t b);
10 #pragma aux vga_setpal = \
11         "test ax, 0x8000" \
12         "jnz skip_dacaddr" \
13         "mov dx, 0x3c8" \
14         "out dx, al" \
15         "skip_dacaddr:" \
16         "mov dx, 0x3c9" \
17         "mov al, bl" \
18         "shr al, 2" \
19         "out dx, al" \
20         "mov al, bh" \
21         "shr al, 2" \
22         "out dx, al" \
23         "mov al, cl" \
24         "shr al, 2" \
25         "out dx, al" \
26         parm[ax][bl][bh][cl] \
27         modify[dx];
28 #endif /* __WATCOMC__ */
29
30 #endif  /* VGA_H_ */