2017-11-27 04:31:41 +00:00
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;;; ------------------------------------------------------------
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;;; ASCII
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BELL := $07
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CR := $0D
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;;; ------------------------------------------------------------
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;;; Constants
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MAX_DW := $FFFF
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;;; ------------------------------------------------------------
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;;; Softswitches
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CLR80VID := $C00C ; 40 Columns
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ROMIN2 := $C082 ; Read ROM; no write
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RWRAM1 := $C08B ; Read/write RAM bank 1
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;;; ------------------------------------------------------------
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;;; ProDOS
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PRODOS := $BF00
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DATETIME := $BF06
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DEVNUM := $BF30
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BITMAP := $BF58
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BITMAP_SIZE := 24 ; 24 bytes in system bit map
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DATELO := $BF90
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TIMELO := $BF92
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MACHID := $BF98
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SYS_ADDR := $2000 ; Load address for SYSTEM files
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PATHNAME := $0280 ; Pathname of loaded system file
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;;; MLI commands
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MLI_QUIT := $65
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MLI_READ_BLOCK := $80
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2017-12-03 05:35:50 +00:00
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MLI_GET_TIME := $82
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2017-11-27 04:31:41 +00:00
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MLI_OPEN := $C8
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MLI_READ := $CA
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MLI_CLOSE := $CC
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.macro PRODOS_CALL call, params
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jsr PRODOS
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.byte call
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.addr params
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.endmacro
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;;; Volume Directory Block Header structure
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.scope VolumeDirectoryBlockHeader
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prev_block := $00
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next_block := $02
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entry_length := $23
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entries_per_block := $24
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header_length := $2B
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.endscope
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;; File Entry structure
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.scope FileEntry
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storage_type := $00
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name_length := $00
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file_name := $01
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file_type := $10
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.endscope
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;;; ------------------------------------------------------------
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;;; Monitor
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INIT := $FB2F
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MON_HOME := $FC58
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CROUT := $FD8E
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PRBYTE := $FDDA
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COUT := $FDED
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SETNORM := $FE84
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SETKBD := $FE89
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SETVID := $FE93
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;;; ------------------------------------------------------------
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;;; I/O Registers (for Slot 2)
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TDREG := $C088 + $20 ; ACIA Transmit Register (write)
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RDREG := $C088 + $20 ; ACIA Receive Register (read)
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STATUS := $C089 + $20 ; ACIA Status/Reset Register
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COMMAND := $C08A + $20 ; ACIA Command Register (read/write)
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CONTROL := $C08B + $20 ; ACIA Control Register (read/write)
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;;; ------------------------------------------------------------
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;;; Length-prefixed string
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.macro PASCAL_STRING arg
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.byte .strlen(arg)
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.byte arg
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.endmacro
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;;; ------------------------------------------------------------
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;;; Define a string with high bits set
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;;; e.g. HIASCII "Ding ding", $7, $7
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.macro HIASCII arg, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9
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.if .blank(arg)
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.exitmacro
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.endif
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.if .match ({arg}, "") ; string?
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.repeat .strlen(arg), i
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.byte .strat(arg, i) | $80
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.endrep
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.else ; otherwise assume number/char/identifier
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.byte (arg | $80)
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.endif
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HIASCII arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9
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.endmacro
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;;; Like HIASCII, but null-terminated
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.macro HIASCIIZ arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9
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HIASCII arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9
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.byte 0
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.endmacro
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;;; Set the high bit on the passed byte
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.define HI(c) ((c)|$80)
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