MEM A000h:8580h - S3 - MEMORY-MAPPED DMAsee Direct Memory Access REGISTERS Size: 32 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 Format of S3 memory-mapped DMAsee Direct Memory Access registers: Offset Size Description (Table M0072) 8580h DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. start address in system memory 8584h DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. transfer length 8588h DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. transfer enable 858Ch DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. ??? 8590h DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. DMAsee Direct Memory Access base address 8594h DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. DMAsee Direct Memory Access write pointer 8598h DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. DMAsee Direct Memory Access read pointer 859Ch DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. DMAsee Direct Memory Access enable SeeAlso: #M0057,#M0073