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6502bench/SourceGen/RuntimeData/Apple/ProDOS8.sym65
Andy McFadden 98ebf449ef Tweak comments
Useful comments need to be on each line, so that they appear in the
disassembly listing.
2019-10-08 17:46:00 -07:00

129 lines
4.2 KiB
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; Copyright 2018 faddenSoft. All Rights Reserved.
; See the LICENSE.txt file for distribution terms (Apache 2.0).
;
; Sources:
; Beneath Apple ProDOS
; ProDOS 8 Technical Reference Manual
*SYNOPSIS ProDOS 8 public addresses and constants.
;
; ProDOS 8 MLI function codes.
;
*TAG ProDOS8-MLI-Functions
P8_ALLOC_INTERRUPT = $40
P8_DEALLOC_INTERRUPT = $41
P8_QUIT = $65
P8_READ_BLOCK = $80
P8_WRITE_BLOCK = $81
P8_GET_TIME = $82
P8_CREATE = $C0
P8_DESTROY = $C1
P8_RENAME = $C2
P8_SET_FILE_INFO = $C3
P8_GET_FILE_INFO = $C4
P8_ONLINE = $C5
P8_SET_PREFIX = $C6
P8_GET_PREFIX = $C7
P8_OPEN = $C8
P8_NEWLINE = $C9
P8_READ = $CA
P8_WRITE = $CB
P8_CLOSE = $CC
P8_FLUSH = $CD
P8_SET_MARK = $CE
P8_GET_MARK = $CF
P8_SET_EOF = $D0
P8_GET_EOF = $D1
P8_SET_BUF = $D2
P8_GET_BUF = $D3
*TAG
;
; System global page. Labels and comments are from the ProDOS 8
; Technical Reference Manual (section 5.2.4).
;
P8_MLI @ $BF00 ;ProDOS MLI call entry point
; "do not use these"
P8_JSPARE @ $BF03 ;jump vector to cold start, selector pgm, etc.
P8_DATETIME @ $BF06 ;clock calendar routine
P8_SYSERR @ $BF09 ;error reporting hook
P8_SYSDEATH @ $BF0C ;system failure hook
P8_SERR @ $BF0F ;err code, 0=no error
; disk device driver vectors
; two bytes each; slot 0-7 drive 1, then slot 0-7 drive 2
; (s0d1/s0d2 are reserved; s3d2 @BF26-7 is /RAM)
P8_DEVADR01 @ $BF10 $20 ;device driver vectors
; list of active devices by unit number
P8_DEVNUM @ $BF30 ;most recent accessed device
P8_DEVCNT @ $BF31 ;number of on-line devices (-1)
P8_DEVLST @ $BF32 14 ;up to 14 units may be active
; copyright notice at $BF40-4A
; routines reserved for MLI and subject to change
;P8_MLIENT1 @ $BF4B
;P8_AFTIRQ @ $BF50
;P8_OLD45 @ $BF56
;P8_AFBANK @ $BF57
; memory in-use map, one bit per 256-byte page
P8_MEMTABL @ $BF58 24 ;memory map of lower 48K
; 16-bit pointers to buffers
P8_GL_BUFF @ $BF70 16 ;buffer addresses for 8 open files
; interrupt vectors
P8_INTRUPT1 @ $BF80 2 ;interrupt vector #1
P8_INTRUPT2 @ $BF82 2 ;interrupt vector #2
P8_INTRUPT3 @ $BF84 2 ;interrupt vector #3
P8_INTRUPT4 @ $BF86 2 ;interrupt vector #4
P8_INTAREG @ $BF88 ;A-register
P8_INTXREG @ $BF89 ;X-register
P8_INTYREG @ $BF8A ;Y-register
P8_INTSREG @ $BF8B ;stack register
P8_INTPREG @ $BF8C ;status register
P8_INTBANKID @ $BF8D ;ROM, RAM1, or RAM2 ($D000 in LC)
P8_INTADDR @ $BF8E 2 ;program counter retn addr
; the following options can be changed before calls to the MLI
P8_DATELO @ $BF90 2 ;bits 15-9=yr, 8-5=mo, 4-0=day
P8_TIMELO @ $BF92 2 ;bits 12-8=hr, 5-0=min; low-hi format
P8_LEVEL @ $BF94 ;file level: used in open, flush, close
P8_BUBIT @ $BF95 ;backup bit disable, SetFileInfo only
P8_SPARE1 @ $BF96 2 ;reserved for MLI use
P8_MACHID @ $BF98 ;machine identification
P8_SLTBYT @ $BF99 ;'1' bits indicate ROM in slot(bit#)
P8_PFIXPTR @ $BF9A ;if = 0, no prefix active
P8_MLIACTV @ $BF9B ;if <> 0, MLI call in progress
P8_CMDADR @ $BF9C 2 ;return address of last call to MLI
P8_SAVEX @ $BF9E ;X-reg on entry to MLI
P8_SAVEY @ $BF9F ;Y-reg on entry to MLI
; the following space is reserved for Language Card bank-switching routines
; $BFA0..BFCF
; interrupt exit and entry routines
P8_IRQXIT @ $BFD0 ;interrupt exit
P8_IRQENT @ $BFEB ;interrupt entry
P8_BNKBYT1 @ $BFF4
P8_BNKBYT2 @ $BFF5
P8_SYS_RTS @ $BFF6
; each system program should set IVERSION to its own current version number
P8_IBAKVER @ $BFFC ;undefined; reserved for future use
P8_IVERSION @ $BFFD ;version # of currently running Interpreter
P8_KBAKVER @ $BFFE ;undefined; reserved for future use
P8_KVERSION @ $BFFF ;version no. (release ID)