Applecorn/auxmem.mosequ.s

* AUXMEM.MOSEQU.S
* (c) Bobbi 2021 GPLv3
*

*******************************
* BBC MOS WORKSPACE LOCATIONS *
*******************************

* $00-$8F Language workspace
* $90-$9F Network workspace
* $A0-$A7 NMI workspace
* $A8-$AF Non-MOS *command workspace
* $B0-$BF Temporary filing system workspace
* $C0-$CF Persistant filing system workspace
* $D0-$DF VDU driver workspace
* $E0-$EE Internal MOS workspace
* $EF-$FF MOS API workspace

* DEBUG       EQU   $00         ; $00=*OPT 255 debug code removed
DEBUG       EQU   $E0         ; $E0=*OPT 255 debug code included
* GSSPEED     EQU   $E1         ; $E1 **TEMP**
FSFLAG1     EQU   $E2         ; $E2
FSFLAG2     EQU   $E3         ; $E3 HOSTFS *OPT settings
GSFLAG      EQU   $E4         ; $E4 GSREAD processing flags
GSCHAR      EQU   $E5         ; $E5 GSREAD accumulator
OSTEXT      EQU   $E6         ; $E6 => text string  $E6 OSNUM+0
MAXLEN      EQU   OSTEXT+2    ; $E8                 $E8 OSNUM+2
MINCHAR     EQU   OSTEXT+3    ; $E9                 $E9 OSNUM+3
MAXCHAR     EQU   OSTEXT+4    ; $EA                 $EA OSPAD
OSNUM       EQU   OSTEXT      ; $E6
OSPAD       EQU   OSNUM+4     ; $EA
OSTEMP      EQU   $EB         ; $EB
OSKBD1      EQU   $EC         ; $EC kbd ws
OSKBD2      EQU   OSKBD1+1    ; $ED kbd ws
OSKBD3      EQU   OSKBD1+2    ; $EE kbd ws
OSAREG      EQU   $EF         ; $EF   A  register
OSXREG      EQU   OSAREG+1    ; $F0   X  register
OSYREG      EQU   OSXREG+1    ; $F1   Y  register
OSCTRL      EQU   OSXREG      ; $F0  (XY)=>control block
OSLPTR      EQU   $F2         ; $F2 => command line
ROMID       EQU   $F4         ; $F4 current ROM 
ROMTMP      EQU   $F5         ; $F5 
ROMPTR      EQU   $F6         ; $F6 => ROM addresses
*                             ; $F8 pseudo-SROM settings
ROMMAX      EQU   $F9         ; $F9 pseudo-SROM settings: maximum ROM number
OSINTWS     EQU   $FA         ; $FA IRQ ZP pointer, use when IRQs off
OSINTA      EQU   $FC         ; $FC IRQ register A store
FAULT       EQU   $FD         ; $FD Error message pointer
ESCFLAG     EQU   $FF         ; $FF Escape status


* $0200-$0235 Vectors
* $0236-$028F OSBYTE variables ($190+BYTENUM)
* $0290-$02ED
* $02EE-$02FF MOS control block

USERV       EQU   $200        ; USER vector
BRKV        EQU   $202        ; BRK vector
CLIV        EQU   $208        ; OSCLI vector
BYTEV       EQU   $20A        ; OSBYTE vector
WORDV       EQU   $20C        ; OSWORD vector
WRCHV       EQU   $20E        ; OSWRCH vector
RDCHV       EQU   $210        ; OSRDCH vector
FILEV       EQU   $212        ; OSFILE vector
ARGSV       EQU   $214        ; OSARGS vector
BGETV       EQU   $216        ; OSBGET vector
BPUTV       EQU   $218        ; OSBPUT vector
GBPBV       EQU   $21A        ; OSGBPB vector
FINDV       EQU   $21C        ; OSFIND vector
FSCV        EQU   $21E        ; FSCV misc file ops

BYTEVARBASE EQU   $190        ; Base of OSBYTE variables
OSFILECB    EQU   $2EE        ; OSFILE control block
OSGBPBCB    EQU   OSFILECB+1  ; OSGBPB control block


* $0300-$03DF
* $03E0-$03FF Used for interfacing with ProDOS XFER