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/* s3 commands */

#define S3_BITBLT       0xc011

#define S3_TWOPOINTLINE 0x2811

#define S3_FILLEDRECT   0x40b1

#define S3_FIFO_EMPTY 0x0400

#define S3_HDW_BUSY   0x0200

/* Enhanced register mapping (MMIO mode) */

#define S3_READ_SEL      0xbee8 /* offset f */

#define S3_MULT_MISC     0xbee8 /* offset e */

#define S3_ERR_TERM      0x92e8

#define S3_FRGD_COLOR    0xa6e8

#define S3_BKGD_COLOR    0xa2e8

#define S3_PIXEL_CNTL    0xbee8 /* offset a */

#define S3_FRGD_MIX      0xbae8

#define S3_BKGD_MIX      0xb6e8

#define S3_CUR_Y         0x82e8

#define S3_CUR_X         0x86e8

#define S3_DESTY_AXSTP   0x8ae8

#define S3_DESTX_DIASTP  0x8ee8

#define S3_MIN_AXIS_PCNT 0xbee8 /* offset 0 */

#define S3_MAJ_AXIS_PCNT 0x96e8

#define S3_CMD           0x9ae8

#define S3_GP_STAT       0x9ae8

#define S3_ADVFUNC_CNTL  0x4ae8

#define S3_WRT_MASK      0xaae8

#define S3_RD_MASK       0xaee8

/* Enhanced register mapping (Packed MMIO mode, write only) */

#define S3_ALT_CURXY     0x8100

#define S3_ALT_CURXY2    0x8104

#define S3_ALT_STEP      0x8108

#define S3_ALT_STEP2     0x810c

#define S3_ALT_ERR       0x8110

#define S3_ALT_CMD       0x8118

#define S3_ALT_MIX       0x8134

#define S3_ALT_PCNT      0x8148

#define S3_ALT_PAT       0x8168

/* Drawing modes */

#define S3_NOTCUR          0x0000

#define S3_LOGICALZERO     0x0001

#define S3_LOGICALONE      0x0002

#define S3_LEAVEASIS       0x0003

#define S3_NOTNEW          0x0004

#define S3_CURXORNEW       0x0005

#define S3_NOT_CURXORNEW   0x0006

#define S3_NEW             0x0007

#define S3_NOTCURORNOTNEW  0x0008

#define S3_CURORNOTNEW     0x0009

#define S3_NOTCURORNEW     0x000a

#define S3_CURORNEW        0x000b

#define S3_CURANDNEW       0x000c

#define S3_NOTCURANDNEW    0x000d

#define S3_CURANDNOTNEW    0x000e

#define S3_NOTCURANDNOTNEW 0x000f

#define S3_CRTC_ADR    0x03d4

#define S3_CRTC_DATA   0x03d5

#define S3_REG_LOCK2 0x39

#define S3_HGC_MODE  0x45

#define S3_HWGC_ORGX_H 0x46

#define S3_HWGC_ORGX_L 0x47

#define S3_HWGC_ORGY_H 0x48

#define S3_HWGC_ORGY_L 0x49

#define S3_HWGC_DX     0x4e

#define S3_HWGC_DY     0x4f

#define S3_LAW_CTL 0x58