Format of S3 memory-mapped DMA registers

Offset  Size    Description     (Table M103)
8580h  DWORD   start address in system memory
8584h  DWORD   transfer length
8588h  DWORD   transfer enable
858Ch  DWORD   ???
8590h  DWORD   DMA base address
8594h  DWORD   DMA write pointer
8598h  DWORD   DMA read pointer
859Ch  DWORD   DMA enable

See Also: #M100,#M095
--------V-MA00086E8--------------------------
MEM A000h:86E8h - S3 - MEMORY-MAPPED ENHANCED REGISTERS
Size:  ? BYTEs

Note:  the S3 graphics processor registers can be mapped at either
     linear 000A0000h or at offset 16M from the start of the linear
     frame buffer
--------V-MA000A000--------------------------
MEM A000h:A000h - S3 - MEMORY-MAPPED COLOR PALETTE REGISTERS
Size:  448 BYTEs

Note:  the S3 graphics processor registers can be mapped at either
     linear 000A0000h or at offset 16M from the start of the linear
     frame buffer
--------V-MA000A4D4--------------------------
MEM A000h:A4D4h - S3 - MEMORY-MAPPED BLT-FILL REGISTERS
Size:  60 BYTEs

Note:  the S3 graphics processor registers can be mapped at either
     linear 000A0000h or at offset 16M from the start of the linear
     frame buffer
--------V-MA000A8D4--------------------------
MEM A000h:A8D4h - S3 - MEMORY-MAPPED LINE REGISTERS
Size:  172 BYTEs

Note:  the S3 graphics processor registers can be mapped at either
     linear 000A0000h or at offset 16M from the start of the linear
     frame buffer
--------V-MA000ACD4--------------------------
MEM A000h:ACD4h - S3 - MEMORY-MAPPED POLYGON-FILL REGISTERS
Size:  172 BYTEs

Note:  the S3 graphics processor registers can be mapped at either
     linear 000A0000h or at offset 16M from the start of the linear
     frame buffer
--------V-MA000B0D4--------------------------
MEM A000h:B0D4h - S3 - MEMORY-MAPPED 3D-LINE REGISTERS
Size:  172 BYTEs

Note:  the S3 graphics processor registers can be mapped at either
     linear 000A0000h or at offset 16M from the start of the linear
     frame buffer
--------V-MA000B4D4--------------------------
MEM A000h:B4D4h - S3 - MEMORY-MAPPED 3D-TRIANGLE REGISTERS
Size:  172 BYTEs

Note:  the S3 graphics processor registers can be mapped at either
     linear 000A0000h or at offset 16M from the start of the linear
     frame buffer
--------V-MA000FF00--------------------------
MEM A000h:FF00h - S3 - MEM-MAPPED "SCENIC HIGHWAY" (Local Periph. Bus) ACCESS
Size:  64 DWORDs

Note:  the S3 graphics processor registers can be mapped at either
     linear 000A0000h or at offset 16M from the start of the linear
     frame buffer