view defs/atarivtio.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 31cd1f1b4fb0
children
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              IFNE      ATARIVTIO.D-1
ATARIVTIO.D   SET       1

********************************************************************
* VTIO Defs for the Atari XE/XL
* Everything that the VTIO driver needs is defined here, including
* static memory definitions

* Constant Definitions
KBufSz    EQU       8                   circular buffer size


* Driver Static Memory
          ORG       V.SCF
V.CurRow  RMB       1
V.CurCol  RMB       1
V.CurChr  RMB       1                   character under the cursor
V.CapsLck RMB       1                   caps lock flag
V.KySns   RMB       1                   key sense flags
V.EscCh1  RMB       2                   escape vector handler
V.EscVect RMB       2                   escape vector handler
V.IBufH   RMB       1                   input buffer head
V.IBufT   RMB       1                   input buffer tail
V.InBuf   RMB       KBufSz              input buffer
          RMB       250-.
V.Last    EQU       .

          ENDC