Commodore Amiga A500 - Page 163

J-FREEMEM equ 3
J-SET-PARAM equ 4
J-SET-SERVICE equ 5
J-STOP-SERVICE equ 6
J-CALLAMIGA equ 7
J-WAITAMIGA equ 8
J-CHECKAMIGA equ 9
Status Returns:
J-NO-SERVICE equ Offh
J-PENDING equ 0
J-FINISHED equ 1
J-0 K equ 0
J-NO-MEMORY equ 3
J-ILLFNCTN equ 4
; no service available
; after J-CALLAMIGA and
J-CHECKAMIGA
; after J-CALLAMIGA and
J-CHECKAMIGA
; general good return
; requested memory not available
; Illegal function code used in AH
Disk request structure for higher level Amiga file request from 8086:
AmigaDskReq STRUC
adr-Fnctn DW ? function code (see below)
adr-File DW ? file number
adr-Offseth DW ? byte offset into file high
adr-Offset l DW ? byte offset into file low
adr-Counth DW ? number of bytes to transfer high
adr-Countl DW ? number of bytes to transfer low
adr-BufferAddr DW ? offset into MEMF-BUFFER memory
for buffer
adr-Err DW ? return code, 0 if all OK
AmigaDskReq ENDS
Function codes for AmigaDskReq adr-Fnctn word
ADRFNCTN-INIT EQU 0 currently not used
ADRFNCTN-READ EQU
1 given file, offset, count, buffer
ADRFNCTN-WRITE EQU
2 given file, offset, count, buffer
ADRFNCTN-SEEK EQU
3 given file, offset
ADRFNCTN-INFO EQU 4 currently not used
ADRFNCTN-OPEN-OLD EQU
5 given ASCllZ pathname in buffer
ADRFNCTN-OPEN-NEW EQU
6 given ASCllZ pathname in buffer
ADRFNCTN-CLOSE EQU
7 given file
ADRFNCTN-DELETE EQU
8 given ASCllZ pathname in buffer
Error codes for adr-Err, returned in low byte
ADRERROK EQU 0 no error
ADRERROFFSET EQU
1 not used
ADRERRCOUNT EQU
2 not used
ADRERRFILE EQU 3 file does not exist
ADRERRFNCT EQU
4 illegal function code
ADRERREOF EQU
5 offset past end of file
ADRERRMULPL EQU
6 not used
ADRERRFILELCOUNT EQU 7 too many open files