a2d/inc/prodos.inc
2018-01-18 09:32:25 -08:00

102 lines
2.8 KiB
PHP

;;; ------------------------------------------------------------
;;; ProDOS MLI
;;; ------------------------------------------------------------
;;; Entry point / Global Page
MLI := $BF00 ; Entry point
DEVNUM := $BF30 ; Most recent accessed device
DEVCNT := $BF31 ; Number of on-line devices minus 1
DEVLST := $BF32 ; Up to 14 units
BITMAP := $BF58 ; System memory bitmap
BITMAP_SIZE := $18 ; Bits for pages $00 to $BF
DATELO := $BF90 ; Date lo
DATEHI := $BF91 ; Date hi
TIMELO := $BF92 ; Time lo
TIMEHI := $BF93 ; Time hi
MACHID := $BF98 ; Machine ID
;;; Patch Locations
SELECTOR := $D100
;;; ------------------------------------------------------------
;;; MLI Calls
;;; Housekeeping Calls
CREATE := $C0
DESTROY := $C1
RENAME := $C2
SET_FILE_INFO := $C3
GET_FILE_INFO := $C4
ON_LINE := $C5
SET_PREFIX := $C6
GET_PREFIX := $C7
;;; Filing Calls
OPEN := $C8
NEWLINE := $C9
READ := $CA
WRITE := $CB
CLOSE := $CC
FLUSH := $CD
SET_MARK := $CE
GET_MARK := $CF
SET_EOF := $D0
GET_EOF := $D1
SET_BUF := $D2
GET_BUF := $D3
;;; System Calls
GET_TIME := $82
ALLOC_INTERRUPT := $40
DEALLOC_INTERRUPT := $41
QUIT := $65
;;; Direct Disk Access Commands
READ_BLOCK := $80
WRITE_BLOCK := $81
;;; ------------------------------------------------------------
;;; Device Types (low nibble of unit number in DEVLST)
DT_DISKII := $0
DT_PROFILE := $4
DT_RAM := $F
;;; See ProDOS Tech Note #21 - other than the above types, there
;;; is not an "ID nibble". The nibble is a copy of $CnFE's high
;;; nibble, with this meaning:
;;; bit 3 = removable
;;; bit 2 = interruptable
;;; bit 1-0 = number of volumes (0-1)
;;; "You should ignore the low nibble in the unit number..."
;;; ------------------------------------------------------------
;;; File Types
FT_TYPELESS := $00
FT_BAD := $01
FT_TEXT := $04
FT_BINARY := $06
FT_DIRECTORY := $0F
FT_SRC := $B0 ; IIgs system type; re-used?
FT_S16 := $B3 ; IIgs Application Program
FT_BASIC := $FC
FT_SYSTEM := $FF
;;; ------------------------------------------------------------
;;; Macros
.macro MLI_CALL op, addr
jsr MLI
.byte op
.addr addr
.endmacro
.macro PASCAL_STRING str ; Length-prefixed string
.local data ; Can include control chars by using:
.local end ; PASCAL_STRING {"abc",$0D,"def"}
.byte end - data
data: .byte str
end:
.endmacro