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Annotation of qemu/roms/vgabios/vgabios.h, revision 1.1.1.1

1.1       root        1: #ifndef vgabios_h_included
                      2: #define vgabios_h_included
                      3: 
                      4: /* Types */
                      5: typedef unsigned char  Bit8u;
                      6: typedef unsigned short Bit16u;
                      7: typedef unsigned long  Bit32u;
                      8: typedef unsigned short Boolean;
                      9: 
                     10: /* Defines */
                     11: 
                     12: #define SET_AL(val8) AX = ((AX & 0xff00) | (val8))
                     13: #define SET_BL(val8) BX = ((BX & 0xff00) | (val8))
                     14: #define SET_CL(val8) CX = ((CX & 0xff00) | (val8))
                     15: #define SET_DL(val8) DX = ((DX & 0xff00) | (val8))
                     16: #define SET_AH(val8) AX = ((AX & 0x00ff) | ((val8) << 8))
                     17: #define SET_BH(val8) BX = ((BX & 0x00ff) | ((val8) << 8))
                     18: #define SET_CH(val8) CX = ((CX & 0x00ff) | ((val8) << 8))
                     19: #define SET_DH(val8) DX = ((DX & 0x00ff) | ((val8) << 8))
                     20: 
                     21: #define GET_AL() ( AX & 0x00ff )
                     22: #define GET_BL() ( BX & 0x00ff )
                     23: #define GET_CL() ( CX & 0x00ff )
                     24: #define GET_DL() ( DX & 0x00ff )
                     25: #define GET_AH() ( AX >> 8 )
                     26: #define GET_BH() ( BX >> 8 )
                     27: #define GET_CH() ( CX >> 8 )
                     28: #define GET_DH() ( DX >> 8 )
                     29: 
                     30: #define SET_CF()     FLAGS |= 0x0001
                     31: #define CLEAR_CF()   FLAGS &= 0xfffe
                     32: #define GET_CF()     (FLAGS & 0x0001)
                     33: 
                     34: #define SET_ZF()     FLAGS |= 0x0040
                     35: #define CLEAR_ZF()   FLAGS &= 0xffbf
                     36: #define GET_ZF()     (FLAGS & 0x0040)
                     37: 
                     38: #define SCROLL_DOWN 0
                     39: #define SCROLL_UP   1
                     40: #define NO_ATTR     2
                     41: #define WITH_ATTR   3
                     42: 
                     43: #define SCREEN_SIZE(x,y) (((x*y*2)|0x00ff)+1)
                     44: #define SCREEN_MEM_START(x,y,p) ((((x*y*2)|0x00ff)+1)*p)
                     45: #define SCREEN_IO_START(x,y,p) ((((x*y)|0x00ff)+1)*p)
                     46: 
                     47: #endif

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