Mercurial > hg > Members > kono > nitros9-code
view defs/cocosdc.d @ 3140:03b580a02945
Allow CoCo3FPGA-specific build of superdesc.asm
Added new conditional CC3FPGA and code to "level1/modules/superdesc.asm"
to reflect changes needed to build the new SD card descriptors for the
Coco3FPGA.
| author | Bill Pierce <merlinious999@gmail.com> |
|---|---|
| date | Sat, 04 Feb 2017 11:06:26 +0100 |
| parents | 3afecdae6f53 |
| children |
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******************************************************************** * cocosdc.d - CoCo SDC definitions * * $Id$ * * Edt/Rev YYYY/MM/DD Modified by * Comment * ------------------------------------------------------------------ * 2014/05/02 Boisy G. Pitre * Created * 2014/12/22 Darren Atkinson * Additional hardware symbols IFNE COCOSDC.D-1 COCOSDC.D SET 1 * Main Port Address (V.PORT) SDAddr SET $FF4A * Hardware Addressing - CoCo Scheme CTRLATCH equ $FF40 controller latch (write) CMDREG equ $FF48 command register (write) STATREG equ $FF48 status register (read) PREG1 equ $FF49 param register 1 PREG2 equ $FF4A param register 2 PREG3 equ $FF4B param register 3 DATREGA equ PREG2 first data register DATREGB equ PREG3 second data register FLSHDAT equ $FF42 flash data register * Status Register Masks BUSY equ %00000001 set while a command is executing READY equ %00000010 set when ready for a data transfer FAILED equ %10000000 set on command failure * Command and Mode Values CMDMODE equ $43 control latch value to enable command mode CMDREAD equ $80 read logical sector CMDWRITE equ $A0 write logical sector CMDEX equ $C0 extended command CMDEXD equ $E0 extended command with data block ENDC