Index for interrupt INT E0
Table of Contents by Order
E0 - INT E0 - IBM ROM BASIC - used while in interpreter
E0 - INT E0 - APL*PLUS/PC - RESTIME HIGH-RESOLUTION TIMER FOR QUAD MF FUNCTION
E0 - INT E0 - VIRUS - "Micro-128" - ???
E0 - INT E0 - DeskMate (Tandy) - DESK EXECUTIVE API
E0 - INT E0 - CP/M-86, Concurrent CP/M, DR Multiuser DOS - FUNCTION CALLS
E0----CL00 - INT E0 - REAL/32 - "P_TERMCPM" - TERMINATE CALLING PROCESS
E0----CL01 - INT E0 - REAL/32 - "C_READ" - FETCH CHARACTER FROM THE DEFAULT CONSOLE
E0----CL02 - INT E0 - REAL/32 - "C_WRITE" - WRITE CHARACTER TO DEFAULT CONSOLE
E0----CL03 - INT E0 - DR Multiuser DOS - "A_READ" - READ CHARACTER FROM DEFAULT AUX DEVICE
E0----CL04 - INT E0 - DR Multiuser DOS - "A_WRITE" - WRITE CHARACTER TO DEFAULT AUX DEVICE
E0----CL05 - INT E0 - REAL/32 - "L_WRITE" - WRITE CHARACTER TO DEFAULT LIST DEVICE
E0----CL06 - INT E0 - REAL/32 - "C_RAWIO" - PERFORM RAW I/O WITH DEFAULT CONSOLE
E0----CL07 - INT E0 - DR Multiuser DOS - "A_STATIN" - GET INPUT STATUS OF AUX DEVICE
E0----CL08 - INT E0 - DR Multiuser DOS - "A_STATOUT" - GET OUTPUT STATUS OF AUX DEVICE
E0----CL09 - INT E0 - REAL/32 - "C_WRITESTR" - WRITE STRING TO DEFAULT CONSOLE
E0----CL0A - INT E0 - REAL/32 - "C_READSTR" - READ STRING FROM DEFAULT CONSOLE
E0----CL0B - INT E0 - REAL/32 - "C_STAT" - RETURN DEFAULT CONSOLE INPUT STATUS
E0----CL0C - INT E0 - REAL/32 - "S_BDOSVER" - GET BDOS VERSION
E0----CL2F - INT E0 - REAL/32 - "P_CHAIN" - CHAIN PROCESS
E0----CL35 - INT E0 R - REAL/32 - "MC_MAX" - CP-M/86 ALLOCATE MAXIMUM MEMORY
E0----CL36 - INT E0 R - REAL/32 - "MC_ABSMAX" - ALLOCATE MAXIMUM MEMORY SEGMENT ABSOLUTE
E0----CL37 - INT E0 R - REAL/32 - "MC_ALLOC" - CP-M/86 ALLOCATE MEMORY SEGMENT
E0----CL38 - INT E0 R - REAL/32 - "MC_ABSALLOC" - ALLOCATE MEMORY SEGMENT ABSOLUTE
E0----CL39 - INT E0 R - REAL/32 - "MC_FREE" - CP-M/86 FREE SPECIFIED MEMORY SEGMENT
E0----CL3A - INT E0 R - REAL/32 - "MC_ALLFREE" - CP-M/86 FREE ALL MEMORY
E0----CL3B - INT E0 u - REAL/32 - "P_LOAD" - LOAD .CMD FILE INTO MEMORY
E0----CL40 - INT E0 - REAL/32 - "N_LOGON" - LOG ONTO A SERVER
E0----CL41 - INT E0 - REAL/32 - "N_LOGON" - LOG OFF A SERVER
E0----CL44 - INT E0 - REAL/32 - "N_STAT" - GET NETWORK STATUS
E0----CL45 - INT E0 - REAL/32 - "N_RCT" - GET REQUESTOR CONFIGURATION TABLE
E0----CL47 - INT E0 - REAL/32 - "N_SCT" - GET SERVER CONFIGURATION TABLE
E0----CL48 - INT E0 - REAL/32 - "N_ERRMODE" - SET NETWORK ERROR MODE
E0----CL59 - INT E0 - ConcCP/M,DR Multiuser DOS - "S_MEMORY" - RESERVE MEMORY IN GLOBAL AREA
E0----CL5C - INT E0 - REAL/32 - "P_PATH" - SCAN PATH FOR EXECUTABLE FILE
E0----CL5D - INT E0 - REAL/32 - "P_EXEC" - EXECUTE CHILD PROCESS
E0----CL5E - INT E0 - REAL/32 - "P_EXITCODE" - GET/SET PROCESS EXIT CODE
E0----CL6B - INT E0 - REAL/32 - "S_SERIAL" - GET OS SERIAL NUMBER
E0----CL6D - INT E0 - REAL/32 - "C_MODE" - GET/SET CONSOLE MODE
E0----CL6E - INT E0 - REAL/32 - "C_DELIMIT" - GET/SET STRING DELIMITER
E0----CL6F - INT E0 - REAL/32 - "C_WRITEBLK" - WRITE BLOCK TO DEFAULT CONSOLE
E0----CL70 - INT E0 - REAL/32 - "L_WRITEBLK" - WRITE BLOCK TO DEFAULT LIST (PRINTER) DEVICE
E0----CL71 - INT E0 R - ConcCP/M,DR Multiuser DOS - EXECUTE DOS-COMPATIBLE FUNCTIONS
E0----CL73 - INT E0 - GSX-86, GEM/1, GEM/2 - API
E0----CL80 - INT E0 - REAL/32 - "M_ALLOC" - ALLOCATE MEMORY
E0----CL81 - INT E0 - REAL/32 - "M_FREE" - DEALLOCATE MEMORY
E0----CL84 - INT E0 - REAL/32 - "DEV_WAITFLAG" - WAIT ON SYSTEM FLAG
E0----CL85 - INT E0 - REAL/32 - "DEV_SETFLAG" - SET SYSTEM FLAG
E0----CL86 - INT E0 - ConcCP/M,DR Multiuser DOS - "Q_MAKE" - CREATE MESSAGE QUEUE
E0----CL87 - INT E0 - ConcCP/M,DR Multiuser DOS - "Q_OPEN" - OPEN MESSAGE QUEUE
E0----CL88 - INT E0 - REAL/32 - "Q_DELETE" - DELETE SYSTEM QUEUE
E0----CL89 - INT E0 - ConcCP/M,DR Multiuser DOS - "Q_READ" - READ MESSAGE QUEUE
E0----CL8A - INT E0 - ConcCP/M,DR Multiuser DOS - "Q_CREAD" - CONDITIONALLY READ MSG QUEUE
E0----CL8B - INT E0 - ConcCP/M,DR Multiuser DOS - "Q_WRITE" - WRITE MESSAGE QUEUE
E0----CL8C - INT E0 - ConcCP/M,DR Multiuser DOS - "Q_CWRITE" - CONDITIONALLY WRITE MSG QUEUE
E0----CL8E - INT E0 - ConcCP/M,DR Multiuser DOS - "P_DISPATCH" - CALL DISPATCHER
E0----CL8F - INT E0 - REAL/32 - "P_TERM" - TERMINATE CALLING PROCESS
E0----CL90 - INT E0 - REAL/32 - "P_CREATE" - CREATE A PROCESS
E0----CL91 - INT E0 - ConcCP/M,DR Multiuser DOS - "P_PRIORITY" - SET PROCESS PRIORITY
E0----CL92 - INT E0 - ConcCP/M,DR Multiuser DOS - "C_ATTACH" - ATTACH TO DEFAULT CONSOLE
E0----CL93 - INT E0 - ConcCP/M,DR Multiuser DOS - "C_DETACH" - DETACH FROM DEFAULT CONSOLE
E0----CL94 - INT E0 - REAL/32 - "C_SET" - SET PROCESS'S DEFAULT CONSOLE
E0----CL95 - INT E0 - REAL/32 - "C_ASSIGN" - ASSIGN DEFAULT CONSOLE TO ANOTHER PROCESS
E0----CL96 - INT E0 - REAL/32 - "P_CLI" - RUN COMMAND LINE INTERFACE
E0----CL99 - INT E0 - REAL/32 - "C_GET" - GET DEFAULT CONSOLE
E0----CL9A - INT E0 - REAL/32 - "S_SYSDAT" - GET SYSTEM DATA AREA
E0----CL9C - INT E0 - REAL/32 - "P_PDADR" - GET ADDRESS OF PROCESS DESCRIPTOR
E0----CL9D - INT E0 - REAL/32 - "P_ABORT" - ABORT PROCESS BY NAME OR DESCRIPTOR
E0----CL9E - INT E0 - REAL/32 - "L_ATTACH" - ATTACH TO DEFAULT LIST DEVICE
E0----CL9F - INT E0 - REAL/32 - "L_DETACH" - DETACH FROM DEFAULT LIST DEVICE
E0----CLA0 - INT E0 - REAL/32 - "L_SET" - SET DEFAULT LIST DEVICE
E0----CLA1 - INT E0 - REAL/32 - "L_CATTACH" - CONDITIONALLY ATTACH TO DEFAULT LIST DEVICE
E0----CLA2 - INT E0 - REAL/32 - "C_CATTACH" - CONDITIONALLY ATTACH TO DEFAULT CONSOLE
E0----CLA3 - INT E0 - ConcCP/M,DR Multiuser DOS,REAL/32 - "S_OSVER" - GET OS VERSION
E0----CLA4 - INT E0 - REAL/32 - "L_GET" - GET DEFAULT LIST (PRINTER) DEVICE
E0----CLA5 - INT E0 - DR Multiuser DOS - "A_ATTACH" - ATTACH AUX DEVICE
E0----CLA6 - INT E0 - DR Multiuser DOS - "A_DETACH" - DETACH FROM AUX DEVICE
E0----CLA7 - INT E0 - DR Multiuser DOS - "A_CATTACH" - CONDITIONALLY ATTACH TO AUX DEVICE
E0----CLA8 - INT E0 - DR Multiuser DOS - "A_SET" - SET DEFAULT AUX DEVICE NUMBER
E0----CLA9 - INT E0 - DR Multiuser DOS - "A_GET" - GET DEFAULT AUX DEVICE NUMBER
E0----CLAC - INT E0 - DR Multiuser DOS - "A_READBLK" - READ STRING FROM AUX DEVICE
E0----CLAD - INT E0 - DR Multiuser DOS - "A_WRITEBLK" - WRITE STRING TO AUX DEVICE
E0----CLB0 - INT E0 - DR Multiuser DOS - "A_CONFIG" - GET/SET AUX DEVICE PARAMETERS
E0----CLB1 - INT E0 - DR Multiuser DOS - "A_CONTROL" - GET/SET AUX CONTROL PARAMETERS
E0----CLB2 - INT E0 - DR Multiuser DOS - "A_BREAK" - SEND BREAK TO AUX DEVICE
E0----CLB3 - INT E0 R - REAL/32 - "MP_ALLOC" - ALLOCATE PHYSICAL MEMORY
E0----CLB4 - INT E0 R - REAL/32 - "MP_FREE" - DEALLOCATE PHYSICAL MEMORY
E0----CLB5 - INT E0 R - REAL/32 - "MP_MAP" - MAP PHYSICAL MEMORY
E0----CLB6 - INT E0 - REAL/32 - "Q_NCREAD" - CONDITIONALLY NONDESTRUCTIVELY READ QUEUE
E0----CLB7 - INT E0 - REAL/32 - "DEV_TWAITFLAG" - TIMED WAIT ON SYSTEM FLAG
E0----CLB8 - INT E0 - REAL/32 - "DEV_MAP" - GET/SET SERIAL/PARALLEL PORT MAPPINGS
E0----CLB9 - INT E0 - REAL/32 - "L_TIMEOUT" - SET LIST DEVICE TIMEOUT
E0----CLBA - INT E0 - REAL/32 - "A_TIMEOUT" - SET AUX DEVICE TIMEOUT
E0----CLBD - INT E0 - DR Multiuser DOS - "P_DELAY" - DELAY EXECUTION
E00000 - INT E0 - PCROBOTS v1.41 - "SWAPTASK" - END CURRENT ROBOT'S TURN
E00001 - INT E0 - PCROBOTS v1.41 - "MOVEMENT" - START MOVING
E00002 - INT E0 - PCROBOTS v1.41 - "SCAN" - SCAN FOR OTHER ROBOTS IN THE GIVEN DIRECTION
E00003 - INT E0 - PCROBOTS v1.41 - "SHOOT" - FIRE A SHELL AT ANOTHER ROBOT
E00010 - INT E0 - PCROBOTS v1.41 - "GETXY" - GET ROBOT'S CURRENT POSITION
E00011 - INT E0 - PCROBOTS v1.41 - "TRANSMIT" - SEND DATA TO ANOTHER ROBOT
E00012 - INT E0 - PCROBOTS v1.41 - "RECEIVE" - GET DATA FROM OTHER ROBOTS
E00013 - INT E0 - PCROBOTS v1.41 - "DAMAGE" - DETERMINE HOW MUCH DAMAGE SUSTAINED
E00014 - INT E0 - PCROBOTS v1.41 - "SPEED" - DETERMINE HOW FAST ROBOT IS MOVING
E00015 - INT E0 - PCROBOTS v1.41 - "BATTERY" - DETERMINE HOW MUCH BATTERY POWER LEFT
E00016 - INT E0 - PCROBOTS v1.41 - "TICKS" - DETERMINE HOW LONG SINCE GAME STARTED
E00017 - INT E0 - PCROBOTS v1.41 - "L_SIN" - GET SCALED SINE OF AN ANGLE
E00018 - INT E0 - PCROBOTS v1.41 - "L_COS" - GET SCALED COSINE OF AN ANGLE
E00019 - INT E0 - PCROBOTS v1.41 - "L_TAN" - GET SCALED TANGENT OF AN ANGLE
E0001A - INT E0 - PCROBOTS v1.41 - "L_ATAN" - GET ANGLE GIVEN SCALED TANGENT
E0001B - INT E0 - PCROBOTS v1.41 - "SQRT" - DETERMINE SQUARE ROOT OF A NUMBER
E0001C - INT E0 - PCROBOTS v1.41 - "SET_PATTERN" - SPECIFY ROBOT'S DISPLAY IMAGE
E0001D - INT E0 - PCROBOTS v1.41 - "DEBUG_FLAG" - SET/CLEAR MARKERS NEXT TO ROBOT'S NAME
E0001E - INT E0 - PCROBOTS v1.41 - "BUY_ARMOUR" - BUY OR SELL ARMOR FOR ROBOT
E0001F - INT E0 - PCROBOTS v1.41 - "BUY_SHELLS" - BUY ADDITIONAL CANNON SHELLS
E00020 - INT E0 - PCROBOTS v1.41 - "SHELLS LEFT" - DETERMINE HOW MANY SHELLS ROBOT HAS
E00021 - INT E0 - PCROBOTS v1.41 - "GET LOCAL MAP"
E00022 - INT E0 - PCROBOTS v1.41 - "INVISIBILITY" - CONTROL ROBOT'S INVISIBILITY DEVICE
E00023 - INT E0 - PCROBOTS v1.41 - "GET_SHELL_STATUS" - FIND OUT WHAT HAPPENED TO SHELL
E00024 - INT E0 - PCROBOTS v1.41 - "IS_INVISIBLE" - DETERMINE WHETHER ROBOT IS INVISIBLE
E00025 - INT E0 - PCROBOTS v1.41 - "L_ATAN2" - GET ARCTANGENT
E00026 - INT E0 - PCROBOTS v1.41 - "GET_ROBOT_ID" - DETERMINE CURRENT ROBOT'S IDENTIFIER
E00027 - INT E0 - PCROBOTS v1.41 - "REGISTER_IFF" - REGISTER FRIEND/FOE IDENT STRING
E00028 - INT E0 - PCROBOTS v1.41 - "CHECK_IFF" - QUERY FRIEND/FOE IDENTIFICATION STRING
E00029 - INT E0 - PCROBOTS v1.41 - "REGISTER_NAME" - SPECIFY ROBOT'S NAME
E0002A - INT E0 - PCROBOTS v1.41 - "FIND_NAME" - SEARCH FOR ROBOT WITH GIVEN NAME
E0002B - INT E0 - PCROBOTS v1.41 - "GET_TEAM_ID" - DETERMINE TEAM MEMBERSHIP OF ROBOT
E0002C - INT E0 - PCROBOTS v1.41 - "GET_ASHELL_STATUS" - FIND OUT WHAT HAPPENED TO SHELL
E0002D - INT E0 - PCROBOTS v1.41 - "REGISTER_X" - SELECT AUTOMATIC X POSITION UPDATES
E0002E - INT E0 - PCROBOTS v1.41 - "REGISTER_Y" - SELECT AUTOMATIC Y POSITION UPDATES
E00080 - INT E0 - PCROBOTS v1.41 - "CONFIGURE" - CUSTOMIZE ROBOT
INT E0 - IBM ROM BASIC - used while in interpreter Notes: called by ROM BASIC BASIC.COM/BASICA.COM do not restore vector on termination SeeAlso: INT 80"BASIC",INT DF"BASIC",INT E1"BASIC"Top
INT E0 - APL*PLUS/PC - RESTIME HIGH-RESOLUTION TIMER FOR QUAD MF FUNCTION SeeAlso: INT CF"APL"Top
INT E0 - VIRUS - "Micro-128" - ??? Note: Micro-128 also overwrites the upper half of the interrupt table SeeAlso: INT 9E"VIRUS",INT F1"VIRUS"Top
INT E0 - DeskMate (Tandy) - DESK EXECUTIVE API AX = function code (numerous) parameters passed in BX, DX, ES, DI, and/or BP Return: AX = return from function Program: DeskMate is a proprietary GUI from Tandy distributed with several models of the Tandy 1000's, 2500's, 3000's, and laptops. Retail and runtime versions also exist. Some Tandy's are designed to boot directly into DeskMate. SeeAlso: INT 15/AX=7002h,INT E1"DeskMate"Top
INT E0 - CP/M-86, Concurrent CP/M, DR Multiuser DOS - FUNCTION CALLS
CL = function number (see #04019,#04020)
DS,DX contain parameter(s):
DL = byte parameter
DX = word parameter
DS:DX -> structure
Return: as appropriate for function:
AL = byte result
AX = word
ES:AX -> structure (and BX=ES)
CX is often the error code (see #04021)
Notes: several functions are covered in more detail in following entries
most of these calls are also supported by Digital Research's DOS Plus
v2.1; the unsupported functions are 26h,29h-2Bh,3Ah,3Dh-62h,71h-8Ch,
90h-92h,94h-97h,9Bh-ABh, and AEh-FFh
SeeAlso: INT 21/AX=4459h,INT 21/AH=E0h"DOS Plus",INT E6"CP/M-86"
(Table 04019)
Values for CP/M-86,DR Multiuser DOS function number:
00h terminate calling process (see INT E0/CL=00h)
01h read a character (see INT E0/CL=01h)
02h write character to default console (see INT E0/CL=02h)
03h read character from default AUX (see INT E0/CL=03h)
04h write character to default AUX (see INT E0/CL=04h)
05h write character to default list device (see INT E0/CL=05h)
06h perform raw I/O on default console (see INT E0/CL=06h)
07h return default AUX input status (see INT E0/CL=07h)
08h return default AUX output status (see INT E0/CL=08h)
09h write string to default console (see INT E0/CL=09h)
0Ah read string from default console (see INT E0/CL=0Ah)
0Bh return default console input status (see INT E0/CL=0Bh)
0Ch get BDOS release ID (see INT E0/CL=0Ch)
0Dh reset all disk drives (see also INT 21/AH=0Dh)
0Eh set default drive (see also INT 21/AH=0Eh"DOS 1+")
0Fh open file via FCB (see also INT 21/AH=0Fh,#01345)
10h close file via FCB (see also INT 21/AH=10h)
11h search for first matching file with FCB (see also INT 21/AH=11h)
12h search for next matching file with FCB (see also INT 21/AH=12h)
13h delete file via FCB (see also INT 21/AH=13h)
14h sequential read via FCB (see also INT 21/AH=14h)
15h sequential write via FCB (see also INT 21/AH=15h)
16h create file via FCB (see also INT 21/AH=16h)
17h rename file via FCB (see also INT 21/AH=17h)
18h get bit map of logged drives
19h get default drive (see also INT 21/AH=19h)
1Ah set DMA address offset
1Bh get default disk allocation vector (see also INT 21/AH=1Bh)
1Ch set default drive to read-only
1Dh get bit map of read-only drives
1Eh set file attributes via FCB (see also INT 21/AX=4301h)
1Fh get address of disk parameter block (see also INT 21/AH=1Fh)
20h get/set default user number
21h read random record via FCB (see also INT 21/AH=21h)
22h write random record via FCB (see also INT 21/AH=22h)
23h compute file size with FCB (see also INT 21/AH=23h)
24h get FCB random record number (see also INT 21/AH=24h)
25h reset specified drives
26h access specified drives (not in DR DOS Plus v2.1)
27h free specified drives
28h write random with FCB, zero fill (see also INT 21/AH=28h)
2Ah lock records in FCB file (see also INT 21/AH=5Ch)
2Bh unlock records in FCB file (see also INT 21/AH=5Ch)
2Ch set BDOS multisector count
2Dh set BDOS error mode
2Eh get free space on disk
2Fh load, initialize, and jump to process ("chain process")
(see INT E0/CL=2Fh,INT 21/AH=4Bh)
30h flush write-deferred buffers
31h get/set system variable (DOS Plus v2.1)
32h call BIOS (XIOS) character routine (see #04020)
33h set DMA address segment
34h get DMA buffer address
35h CP/M-86 allocate maximum memory (see INT E0/CL=35h)
36h allocate maximum memory at specified segment (see INT E0/CL=36h)
37h CP/M-86 allocate memory segment (see INT E0/CL=37h,INT 21/AH=48h)
38h allocate memory at specified segment (see INT E0/CL=38h)
39h CP/M-86 free specified memory segment (see INT E0/CL=39h,INT 21/AH=49h)
3Ah CP/M-86 free all memory (not in DOS Plus v2.1) (see INT E0/CL=3Ah)
3Bh load .CMD file into memory (see INT E0/CL=3Bh)
3Ch (DOS Plus v2.1) call RSX program
40h (DR-NET, REAL/32) log on a server (see INT E0/CL=40h)
41h (DR-NET, REAL/32) log off a server (see INT E0/CL=41h)
42h (DR-NET) send a message
43h (DR-NET) receive a message
44h (DR-NET, REAL/32) get network status (see INT E0/CL=44h)
45h (DR-NET, REAL/32) get requestor config table (see INT E0/CL=45h)
46h (DR-NET) set compatibility attributes
47h (DR-NET, REAL/32) get server configuration table (see INT E0/CL=47h)
48h (DR-NET, REAL/32) set network error mode (see INT E0/CL=48h)
49h (DR-NET, REAL/32) attach network
4Ah (DR-NET, REAL/32) detach network
4Bh (DR-NET, REAL/32) set default password
4Ch (DR-NET, REAL/32) get-set long timeout
4Dh (DR-NET, REAL/32) get parameter table
4Fh (REAL/32) get extended network error
50h (DR-NET, REAL/32) get network information
53h get current time (see also INT 21/AH=2Ch)
54h set current time (see also INT 21/AH=2Dh)
55h get binary system date (see also INT 21/AH=2Ah)
56h set system date (see also INT 21/AH=2Bh"DATE")
57h allocate system flag
58h deallocate system flag
59h reserve memory in global area (see INT E0/CL=59h)
5Ah lock physical drive
5Bh unlock physical drive
5Ch search path for executable file (see INT E0/CL=5Ch)
5Dh load and execute command (see INT E0/CL=5Dh)
5Eh get/set process exit code (see INT E0/CL=5Eh)
5Fh set country information
60h get country information
63h truncate FCB file (see also INT 21/AH=28h)
64h create/update directory label
65h get directory label
66h get FCB date stamp and password mode
67h write extended FCB
68h set system date and time
69h get system date and time in binary
6Ah establish password for file access
6Bh get OS serial number (see INT E0/CL=6Bh)
6Ch (DOS Plus v2.1) get/set program return code
6Dh get/set console mode (see INT E0/CL=6Dh)
6Eh get/set string delimiter (see INT E0/CL=6Eh)
6Fh write block to default console (see INT E0/CL=6Fh)
70h write block to default list device (see INT E0/CL=70h)
71h execute DOS-compatible function (see INT E0/CL=71h)
74h set FCB time and date stamps
80h allocate memory (see INT E0/CL=80h)
82h deallocate memory (see INT E0/CL=81h)
83h poll I/O device
84h wait on system flag (see INT E0/CL=84h)
85h set system flag (see INT E0/CL=85h)
86h create message queue (see INT E0/CL=86h)
87h open message queue (see INT E0/CL=87h)
88h delete message queue (see INT E0/CL=88h)
89h read from message queue (see INT E0/CL=89h)
8Ah conditionally read from message queue (see INT E0/CL=8Ah)
8Bh write to message queue (see INT E0/CL=8Bh)
8Ch conditionally write to message queue (see INT E0/CL=8Ch)
8Dh delay calling process (see INT E0/CL=8Dh)
8Eh call process dispatcher (yield CPU) (see INT E0/CL=8Eh)
8Fh terminate calling process (same as func 00h) (see INT E0/CL=8Fh)
90h create a process (see INT E0/CL=90h)
91h set calling process' priority (see INT E0/CL=91h)
92h attach to default console (see INT E0/CL=92h)
93h detach from default console (see INT E0/CL=93h)
94h (REAL/32) set the process' default console (see INT E0/CL=94h)
95h assign default console to process (see INT E0/CL=95h)
96h interpret and execute commandline (see INT E0/CL=96h)
97h resident procedure library
98h parse ASCII string into FCB (see also INT 21/AH=29h)
99h return default console (see INT E0/CL=99h)
9Ah get address of system data (SYSDAT) (see INT E0/CL=9Ah)
9Bh get system time and date
9Ch return calling process' descriptor (see INT E0/CL=9Ch)
9Dh terminate process by name or PD address (see INT E0/CL=9Dh)
9Eh attach to default list device (see INT E0/CL=9Eh)
9Fh detach from default list device (see INT E0/CL=9Fh)
A0h select default list device (see INT E0/CL=A0h)
A1h conditionally attach to default list device (see INT E0/CL=A1h)
A2h conditionally attach to default console (see INT E0/CL=A2h)
A3h get OS version number (see INT E0/CL=A3h)
A4h get default list device (see INT E0/CL=A4h)
A5h attach to default AUX (see INT E0/CL=A5h)
A6h detach from default AUX (see INT E0/CL=A6h)
A7h conditionally attach to default AUX (see INT E0/CL=A7h)
A8h set default AUX (see INT E0/CL=A8h)
A9h return default AUX (see INT E0/CL=A9h)
ACh read block from default AUX (see INT E0/CL=ACh)
ADh (DOS Plus v2.1) write block to default AUX (see INT E0/CL=ADh)
B0h configure default AUX (see INT E0/CL=B0h)
B1h get/set device control parameters (see INT E0/CL=B1h)
B2h send Break through default AUX (see INT E0/CL=B2h)
B3h allocate physical memory (see INT E0/CL=B3h)
B4h free physical memory (see INT E0/CL=B4h)
B5h map physical memory (see INT E0/CL=B5h)
B6h nondestructive conditional message queue read (see INT E0/CL=B6h)
B7h timed wait on system flag (see INT E0/CL=B7h)
B8h get/set I/O port mapping (see INT E0/CL=B8h)
B9h set list device timeout (see INT E0/CL=B9h)
BAh set AUX timeout value (see INT E0/CL=BAh)
BBh execute XIOS service
BDh (DR Multiuser DOS) delay (see INT E0/CL=BDh)
FFh return 80386 to native mode
SeeAlso: #04020,#04021
(Table 04020)
Values for DOS Plus v2.1 XIOS functions:
00h terminate program
01h ???
02h check for console input status
03h read character from console
04h write character to console
05h write character to list device
06h write character to auxiliary device
07h read character from auxiliary device
0Fh get list device status
10h-14h reserved
15h device initialization
16h check console output status
17h-7Fh reserved
---BBC Acorn---
80h get XIOS version
81h get Tube semaphore
82h release Tube semaphore
83h select text/graphics
84h update B&W graphics rectangle
85h update color graphics rectangle
86h get/release/update mouse
87h get system error info
88h entry in CLOCK called by WatchDog RSP
89h BBC OSBYTE function
8Ah BBC OSWORD function
SeeAlso: #04019
(Table 04021)
Values for DR Multiuser DOS Error Return Code:
00h no error
01h system call not implemented
02h illegal system call number
03h cannot find memory
04h illegal flag number
05h flag overrun
06h flag underrun
07h no unused Queue Descriptors
08h no free queue buffer
09h cannot find queue
0Ah queue in use
0Ch no free Process Descriptors
0Dh no queue access
0Eh empty queue
0Fh full queue
10h CLI queue missing
11h no 8087 in system
12h no unused Memory Descriptors
13h illegal console number
14h no Process Descriptor match
15h no console match
16h no CLI process
17h illegal disk number
18h illegal filename
19h illegal filetype
1Ah character not ready
1Bh illegal Memory Descriptor
1Ch bad return from BDOS load
1Dh bad return from BDOS read
1Eh bad return from BDOS open
1Fh null command
20h not owner of resource
21h no CSEG in load file
22h process Descriptor exists on Thread Root
23h could not terminate process
24h cannot attach to process
25h illegal list device number
26h illegal password
28h external termination occurred
29h fixup error upon load
2Ah flag set ignored
2Bh illegal auxilliary device number
SeeAlso: #04019
Top
INT E0 - REAL/32 - "P_TERMCPM" - TERMINATE CALLING PROCESS CL = 00h Return: AX = error code FFFFh on failure may destroy SI,DI??? Program: REAL/32 is the descendant of IMS Multiuser DOS, which in turn is derived from DR Multiuser DOS and its predecessors (Concurrent DOS, etc.) Notes: sets the exit code (ERRORLEVEL) to 00h INT E0h is officially reserved for Digital Research by Intel. Apparently some Borland products also used this interrupt, which forced Digital Research to indirect calls through other interrupt entry points. This is also supported by IMS Multiuser DOS and IMS REAL/32. SeeAlso: INT 21/AH=00hTop
INT E0 - REAL/32 - "C_READ" - FETCH CHARACTER FROM THE DEFAULT CONSOLE CL = 01h Return: AX = character may destroy SI,DI??? Notes: this function echos the character to the screen, expanding Tab characters to the next multiple of eight columns; Ctrl-C is ignored if the calling process can not terminate the calling process is suspended until a character is available; if the caller does not own the console, it is suspended until it can attach to the console SeeAlso: INT E0/CL=02h,INT E0/CL=06h,INT 21/AH=01hTop
INT E0 - REAL/32 - "C_WRITE" - WRITE CHARACTER TO DEFAULT CONSOLE CL = 02h DX = character Return: nothing may destroy SI,DI??? Note: Tab characters are expanded to blanks up to the next multiple of eight columns SeeAlso: INT E0/CL=01h,INT E0/CL=06h,INT 21/AH=02hTop
INT E0 - DR Multiuser DOS - "A_READ" - READ CHARACTER FROM DEFAULT AUX DEVICE CL = 03h Return: AL = ASCII character may destroy SI,DI??? Notes: A_READ reads the next 8-bit character from the logical auxilliary input device (AUXn:); control is not returned to the calling process until a character has been read. if another process owns AUX, this call blocks until the device becomes available this function is also supported by REAL/32 SeeAlso: INT 21/AH=03h,INT E0/CL=04h,INT E0/CL=07h,INT E0/CL=A5h,INT E0/CL=AChTop
INT E0 - DR Multiuser DOS - "A_WRITE" - WRITE CHARACTER TO DEFAULT AUX DEVICE CL = 04h DL = BYTE to write Return: nothing may destroy SI,DI,DH??? Note: if another process owns AUX, this call blocks until the device becomes available SeeAlso: INT 21/AH=04h,INT E0/CL=03h,INT E0/CL=08h,INT E0/CL=A5h,INT E0/CL=ADhTop
INT E0 - REAL/32 - "L_WRITE" - WRITE CHARACTER TO DEFAULT LIST DEVICE CL = 05h DL = char to write Return: nothing may destroy SI,DI??? Note: if another process owns the list device, this call blocks until the device becomes available SeeAlso: INT 21/AH=05hTop
INT E0 - REAL/32 - "C_RAWIO" - PERFORM RAW I/O WITH DEFAULT CONSOLE CL = 06h DL = mode describing the operation to be performed FFh get console input/status FEh get console status FDh get console input (blocking) else output DL to the console as a character Return: AX = returned value for DL = FFh, the character or 00h if none available for DL = FEh, 00h if no characters available, FFh if any available for DL = FDh, the character read from the console else AX = 0000h may destroy SI,DI??? Notes: during raw I/O, the special characters ^C, ^O, ^P, and ^S are not interpreted, but are passed through if the virtual console is in ^S mode and the owning process calls this function, the ^S state is cleared SeeAlso: INT E0/CL=01h,INT E0/CL=02h,INT 21/AH=06hTop
INT E0 - DR Multiuser DOS - "A_STATIN" - GET INPUT STATUS OF AUX DEVICE CL = 07h Return: AL = status 00h not ready FFh character available Desc: determine whether the current AUX device has input available SeeAlso: INT E0/CL=03h,INT E0/CL=08hTop
INT E0 - DR Multiuser DOS - "A_STATOUT" - GET OUTPUT STATUS OF AUX DEVICE CL = 08h Return: AL = status 00h not ready FFh ready for output Desc: determine whether the current AUX device is able to accept more output SeeAlso: INT E0/CL=04h,INT E0/CL=07hTop
INT E0 - REAL/32 - "C_WRITESTR" - WRITE STRING TO DEFAULT CONSOLE CL = 09h DS:DX -> string Return: nothing may destroy SI,DI,DS??? Note: the string terminated with a '$' character (24h) by default; the terminator may be changed with C_DELIMIT tabs are expanded to the next multiple of eight columns SeeAlso: INT E0/CL=6EhTop
INT E0 - REAL/32 - "C_READSTR" - READ STRING FROM DEFAULT CONSOLE CL = 0Ah DS:DX -> buffer for string (see #04022) Return: nothing Format of REAL/32 "C_READSTR" buffer: Offset Size Description (Table 04022) 00h BYTE maximum number of characters buffer can hold 01h BYTE actual number of buffers read 02h N BYTEs input lineTop
INT E0 - REAL/32 - "C_STAT" - RETURN DEFAULT CONSOLE INPUT STATUS CL = 0Bh Return: AX = status 0000h no characters ready 0001h character available may destroy SI,DI??? Note: after setting bit 0 of the console mode word with C_MODE, this function will only return AX=0001h when the user presses Ctrl-C.Top
INT E0 - REAL/32 - "S_BDOSVER" - GET BDOS VERSION CL = 0Ch Return: AX = version (see #04023) may destroy SI,DI??? SeeAlso: INT E0/CL=A3h,INT 21/AX=4451h (Table 04023) Values for REAL/32 BDOS version: 1432h - DR Concurrent PC DOS Version 3.2 1441h - DR Concurrent DOS Version 4.1 1450h - DR Concurrent DOS/XM Version 5.0 1463h - DR Multiuser DOS Release 5.0 1465h - DR Multiuser DOS Release 5.01 1466h - DR Multiuser DOS Release 5.1, IMS Multiuser DOS Enhanced Release 5.1 1467h - IMS Multiuser DOS Version 7.0, 7.1 1468h - IMS REAL/32 Version 7.50, 7.51 1469h - IMS REAL/32 Version 7.52, 7.53 14??h - IMS REAL/32 Version 7.6 SeeAlso: #01579,#01580,#01581Top
INT E0 - REAL/32 - "P_CHAIN" - CHAIN PROCESS CL = 2Fh [DTA] = ASCIZ command line for process to start Return: AX = return code 0000h successful FFFFh failed may destroy SI,DI???Top
INT E0 R - REAL/32 - "MC_MAX" - CP-M/86 ALLOCATE MAXIMUM MEMORY CL = 35h DS:DX -> MCB (see #04024) Return: AX = status may destroy SI,DI,DS??? SeeAlso: INT E0/CL=39h Format of REAL/32 MCB (Memory Control Block): Offset Size Description (Table 04024) 00h WORD segment address of memory block 02h WORD length of block in paragraphs 04h BYTE reserved (0)Top
INT E0 R - REAL/32 - "MC_ABSMAX" - ALLOCATE MAXIMUM MEMORY SEGMENT ABSOLUTE CL = 36h DS:DX -> MCB (see #04024) Return: AX = status may destroy SI,DI,DS??? SeeAlso: INT E0/CL=39hTop
INT E0 R - REAL/32 - "MC_ALLOC" - CP-M/86 ALLOCATE MEMORY SEGMENT CL = 37h DS:DX -> MCB (see #04024) Return: AX = status may destroy SI,DI,DS??? SeeAlso: INT E0/CL=39hTop
INT E0 R - REAL/32 - "MC_ABSALLOC" - ALLOCATE MEMORY SEGMENT ABSOLUTE CL = 38h DS:DX -> MCB (see #04024) Return: AX = status may destroy SI,DI,DS??? SeeAlso: INT E0/CL=39hTop
INT E0 R - REAL/32 - "MC_FREE" - CP-M/86 FREE SPECIFIED MEMORY SEGMENT CL = 39h DS:DX -> MCB (see #04024) Return: AX = status may destroy SI,DI,DS??? SeeAlso: INT E0/CL=3AhTop
INT E0 R - REAL/32 - "MC_ALLFREE" - CP-M/86 FREE ALL MEMORY CL = 3Ah Return: nothing??? Desc: release all of the calling process's memory except the User Data Area SeeAlso: INT E0/CL=39hTop
INT E0 u - REAL/32 - "P_LOAD" - LOAD .CMD FILE INTO MEMORY CL = 3Bh ??? Return: ??? Note: IMS does not document the details of this call because .CMD files are supported for backward compatibility onlyTop
INT E0 - REAL/32 - "N_LOGON" - LOG ONTO A SERVER CL = 40h DS:DX -> LPB (see #04025) Return: AX = status (0000h,00FFh,07FFh,0DFFh,0EFFh,FFFFh) (see #04030) may destroy SI,DI,DS??? SeeAlso: INT E0/CL=41h Format of REAL/32 Logon/Logoff Parameter Block: Offset Size Description (Table 04025) 00h BYTE node ID 01h 8 BYTEs password for server access 09h DWORD -> process descriptor of process to be logged on (see #04026) Format of REAL/32 Process Descriptor: Offset Size Description (Table 04026) 00h WORD offset of next entry in current descriptor list 02h WORD offset of thread list 04h BYTE current processor status (see #04027) 05h BYTE priority 06h WORD runtime flags (see #04028) 08h 8 BYTEs process name 10h WORD segment of User Data Area (UDA) (256 or 352 bytes) 12h BYTE current default disk drive 13h BYTE drive from which process was loaded 14h WORD reserved (0) 16h WORD offset of memory descriptor list for memory owned by process 18h 6 BYTEs reserved 1Eh WORD offset of process descriptor for parent process 0000h if parent has already terminated 20h BYTE number of default console 21h BYTE number of default AUX device 22h 2 BYTEs reserved 24h BYTE number of default list device 25h BYTE reserved 26h WORD flags (see #04029) 28h 12 BYTEs reserved 34h WORD offset of memory page allocation root 36h 22 BYTEs reserved Note: At least offset 10h (UDA) is also supported by MDOS 5.00, 5.01, 5.10, as the DR DOS MEM utility retrieves this UDA segment through INT E0/CL=9Ah when INT 21/AX=4451h returns 1463h, 1465h, or 1466h. SeeAlso: #04025 (Table 04027) Values for REAL/32 processor status: 00h process is ready to run 01h process is polling a device 02h delaying for a number of ticks 03h in swap list 04h terminating 05h asleep 06h waiting to read a message from a queue 07h waiting to write a message 08h waiting on system flag or semaphore 09h waiting to attach to an I/O device 0Ah waiting on sync block 0Bh waiting for system flag or semaphore with timeout 0Ch forced dispatch SeeAlso: #04026 Bitfields for REAL/32 process flags: Bit(s) Description (Table 04028) 0 system process 1 do not terminate 2 special rsp process 3 from process descriptor table 14-4 unused??? 15 uses math coprocessor SeeAlso: #04026,#04029 Bitfields for REAL/32 secondary flags: Bit(s) Description (Table 04029) 0 suspend when in background 1 ??? 2 in foreground 3 enable APPEND processing on file opens 4 Ctrl-C was typed 5 Ctrl-C will reset disk system 6 OK to read locked record 7 ??? 8 do not perform banking SeeAlso: #04026,#04028 (Table 04030) Values for REAL/32 "N_LOGON" status: 0000h successful 00FFh server could not create shadow process 07FFh incorrect password 0CFFh not logged into specified server 0DFFh process already logged onto 16 servers, LPB process not attached to network 0EFFh physical transmission prevented message or response from getting thru network error during logoff FFFFh calling process not attached to networkTop
INT E0 - REAL/32 - "N_LOGON" - LOG OFF A SERVER CL = 41h DS:DX -> LPB (see #04025) Return: AX = status (0000h,0CFFh,0DFFh,0EFFh,FFFFh) (see #04030) may destroy SI,DI,DS??? SeeAlso: INT E0/CL=40hTop
INT E0 - REAL/32 - "N_STAT" - GET NETWORK STATUS CL = 44h Return: AX = network status or 0FFFh on error bit 8: calling process is attached to network may destroy SI,DI???Top
INT E0 - REAL/32 - "N_RCT" - GET REQUESTOR CONFIGURATION TABLE CL = 45h DS:DX -> RCT Control Block (see #04031,#04032) Return: AX = status or error code (see #04033,#04030) may destroy SI,DI,DS??? SeeAlso: INT E0/CL=47h Format of REAL/32 RCT Control Block for Drives: Offset Size Description (Table 04031) 00h BYTE command byte 00h map disk drive 02h map list device 01h BYTE local resource ID 02h BYTE remote resource ID 03h BYTE server node ID number Note: the RCT Control Block is a union of two possible structures; this variant is used when mapping disk drives and list devices SeeAlso: #04032 Format of REAL/32 RCT Control Block for Queues: Offset Size Description (Table 04032) 00h BYTE command byte 03h map local queue to server 04h unmap queue 01h 8 BYTEs local queue name (case-sensitive) 09h 8 BYTEs remote queue name (case-sensitive) 11h BYTE server node ID number Note: the RCT Control Block is a union of two possible structures; this variant is used when mapping queues SeeAlso: #04031 (Table 04033) Values for REAL/32 "N_RCT" status: 0000h successful 0001h invalid local device 0002h invalid remote device 0003h no queue entry spaceTop
INT E0 - REAL/32 - "N_SCT" - GET SERVER CONFIGURATION TABLE CL = 47h DS:DX -> 112-byte buffer for Server Configuration Table (see #04034) Return: AX = status (0000h successful, else error code) may destroy SI,DI,DS??? Note: the first byte of the SCT buffer is set to the desired server number prior to calling this function SeeAlso: INT E0/CL=45h Format of REAL/32 Server Configuration Table: Offset Size Description (Table 04034) 00h BYTE server's default physical drive ID 01h BYTE network status 02h BYTE server node ID number 03h BYTE maximum number of requesters supported by server 04h BYTE current number of shadow processes 05h 108 BYTEs six logon structures, each: Offset Size Description 00h WORD bit vector of logged-in nodes 02h 16 BYTEs list of requester node IDsTop
INT E0 - REAL/32 - "N_ERRMODE" - SET NETWORK ERROR MODE CL = 48h DL = new error mode FFh return error in registers AX,BX,CX FEh display message and return error FDh display message and abort (default) Return: CX = error code (0000h successful, FFFFh failed) may destroy SI,DI??? Desc: specify how the REAL/32 Net Server responds to error numbers 0CFFh, 0DFFh, and 0EFFh (see #04030)Top
INT E0 - ConcCP/M,DR Multiuser DOS - "S_MEMORY" - RESERVE MEMORY IN GLOBAL AREA CL = 59h DX = size in bytes Return: AX = status FFFFh failed other successful ES:BX -> reserved memoryTop
INT E0 - REAL/32 - "P_PATH" - SCAN PATH FOR EXECUTABLE FILE CL = 5Ch DS:DX -> Exec Parameter Block (EPB) (see #04035) Return: AX = status FFFEh file not found FFFDh path not found FFFCh too many handles open FFFBh access denied FFF6h invalid environment FFDCh sharing conflict FFAAh invalid password EPB updated (if successful) may destroy SI,DI,DS SeeAlso: INT E0/CL=5Dh,INT E0/CL=5Eh,INT 21/AH=4Bh Format of REAL/32 Exec Parameter Block (EPB): Offset Size Description (Table 04035) 00h DWORD -> ASCIZ command to be executed 04h BYTE type of exec 00h .CMD 01h .COM 02h .EXE 03h .BAT 04h RSP-type queue 05h BYTE flags bit 0: overlay existing program bit 1: don't assign console to child bit 2: allocate memory for .CMD within parent's memory space bit 3: make full banked window available while loading child 06h DWORD 32-bit offset to ASCIZ command line 0Ah WORD selector for ASCIZ command lineTop
INT E0 - REAL/32 - "P_EXEC" - EXECUTE CHILD PROCESS CL = 5Dh DS:DX -> Exec Parameter Block (EPB) (see #04035) Return: AX = status FFFEh file not found FFFDh path not found FFFCh too many handles open FFFBh access denied FFF6h invalid environment FFDCh sharing conflict FFAAh invalid password EPB updated (if successful) may destroy SI,DI,DS SeeAlso: INT E0/CL=5Ch,INT E0/CL=5Eh,INT 21/AH=4BhTop
INT E0 - REAL/32 - "P_EXITCODE" - GET/SET PROCESS EXIT CODE CL = 5Eh DX = exit code or FFFFh to get DH ignored when setting code DL = process exit code Return: AX = status (FFFFh on error) if getting: AH = termination reason 00h normal 01h external termination via Ctrl-C or P_ABORT 02h hardware (critical) error abort 03h child did not terminate FFh illegal request (no child, or exit code already retrieved) AL = process exit code SeeAlso: INT E0/CL=5Dh,INT 21/AH=4ChTop
INT E0 - REAL/32 - "S_SERIAL" - GET OS SERIAL NUMBER CL = 6Bh DS:DX -> 6-byte buffer for ASCII serial number Return: nothing???Top
INT E0 - REAL/32 - "C_MODE" - GET/SET CONSOLE MODE CL = 6Dh DX = new console mode (see #04036), or FFFFh to get current mode Return: AX = status if setting (0000h = success) AX = current console mode if DX=FFFFh on entry Bitfields for REAL/32 console mode: Bit(s) Description (Table 04036) 0 C_STAT function will return 01h only when Ctrl-C is pressed 1 disable support for stop/start scroll (Ctrl-S/Ctrl-Q) 2 raw console output (no tab expansion, no printer echo) 3 disable program termination on Ctrl-C 7 disable Ctrl-O console bit-bucket 10 enable Esc as end-of-line characterTop
INT E0 - REAL/32 - "C_DELIMIT" - GET/SET STRING DELIMITER CL = 6Eh DX = new delimiter, or FFFFh to get current string delimiter Return: AX = status (0000h success) if setting AX = current string delimiter (default is 24h '$' at process start) SeeAlso: INT E0/CL=09hTop
INT E0 - REAL/32 - "C_WRITEBLK" - WRITE BLOCK TO DEFAULT CONSOLE CL = 6Fh DS:DX -> Character Control Block (see #04051,#04052) Return: nothing??? SeeAlso: INT E0/CL=70hTop
INT E0 - REAL/32 - "L_WRITEBLK" - WRITE BLOCK TO DEFAULT LIST (PRINTER) DEVICE CL = 70h DS:DX -> Character Control Block (see #04051,#04052) Return: nothing??? SeeAlso: INT E0/CL=6FhTop
INT E0 R - ConcCP/M,DR Multiuser DOS - EXECUTE DOS-COMPATIBLE FUNCTIONS CL = 71h DS:DX -> parameter block (see #04038) Return: AX = status (0000h successful, else error code) may destroy SI,DI,DS (Table 04037) Values for DR "execute DOS-compatible function" function number: 00h "fd_getdpb" get disk information (see also INT 21/AH=32h) 01h "fd_mkdir" create directory (see also INT 21/AH=39h) 02h "fd_rmdir" remove directory (see also INT 21/AH=3Ah) 03h "fd_chdir" change directory (see also INT 21/AH=3Bh) 04h "fd_creat" create file (see also INT 21/AH=3Ch) 05h "fd_open" open existing file (see also INT 21/AH=3Dh) 06h "fd_close" close file (see also INT 21/AH=3Eh) 07h "fd_read" read from file (see also INT 21/AH=3Fh) 08h "fd_write" write to file (see also INT 21/AH=40h) 09h "fd_delete" delete file (see also INT 21/AH=41h) 0Ah "fd_lseek" get/set file position (see also INT 21/AH=42h) 0Bh "fd_chmod" get/set file attributes (see also INT 21/AH=43h) 0Ch "fd_curdir" get current directory (see also INT 21/AH=47h) 0Dh "fd_sfirst" find first matching file (see also INT 21/AH=4Eh) 0Eh "fd_snext" find next matching file (see also INT 21/AH=4Fh) 0Fh "fd_rename" rename file (see also INT 21/AH=56h) 10h "fd_gsfdate" get/set file date (see also INT 21/AX=5700h) 11h "fd_mktemp" make temporary file (see also INT 21/AH=5Ah) 12h "fd_mknew" create new file (see also INT 21/AH=5Bh) 13h "fd_lock" lock/unlock file data (see also INT 21/AH=5Ch) 14h "fd_dup" duplicate file handle (see also INT 21/AH=45h) 15h "fd_dup2" force duplicate file handle (see also INT 21/AH=46h) 16h-19h ??? 1Ah "fd_ioctl" I/O control emulation 1Bh "fd_commit" commit file to disk (see also INT 21/AH=68h) 1Ch "fd_expand" expand file name (see also INT 21/AH=60h) 1Dh ??? 1Eh ??? 1Fh "fd_sethandles" set number of handles for calling process SeeAlso: #04038 Format of DR "execute DOS-compatible function" parameter block: Offset Size Description (Table 04038) 00h WORD function number (see #04037) ---function 00h--- 02h WORD drive 04h DWORD -> DPB (see #04039) ---function 01h,02h,03h--- 02h DWORD -> ASCIZ directory name ---function 04h--- 02h DWORD -> ASCIZ filename 06h WORD file attributes ---function 05h--- 02h DWORD -> ASCIZ filename 06h WORD open mode (see INT 21/AH=3Dh) ---function 06h--- 02h WORD file handle ---function 07h,08h--- 02h WORD file handle 04h DWORD -> buffer 08h WORD number of bytes to read or write ---function 09h--- 02h DWORD -> ASCIZ filename ---function 0Ah--- 02h WORD file handle 04h DWORD (call) desired offset (ret) new file position if function is successful 08h WORD seek origin (offset is calculated from specified position) 00h start of file 01h current position 02h end of file ---function 0Bh--- 02h DWORD -> ASCIZ filename 06h WORD (call) new file attributes or new file owner (ret) current/new file attributes, depending on function 08h WORD subfunction 00h get attribute 01h set attribute 02h get extended attributes 03h set extended attributes (and password) 04h get encrypted password 05h set extended attributes (and encrypted password) 06h get file owner 07h set file owner Note: the password is taken from the first 8 bytes of the DTA ---function 0Ch--- 02h WORD drive 04h DWORD -> 64-byte buffer for ASCIZ current directory path ---function 0Dh--- 02h DWORD -> ASCIZ filespec 06h WORD file attributes 08h WORD (call) size of buffer pointed at by current DTA (ret) number of matching files returned??? Note: if the volume label attribute is specified, the root directory will be searched if the buffer is at least 47 bytes, multiple matching entries will be stored in the DTA (at 21 bytes per entry) ---function 0Eh--- 02h WORD number of additional matches to store in DTA (normally set to 0, but if DTA is at least 47 bytes, can be set to (DTAsize-21)/26 to return multiple matches) ---function 0Fh--- 02h DWORD -> ASCIZ filename 06h DWORD -> ASCIZ new name ---function 10h--- 02h WORD file handle 04h WORD subfunction 00h get date and time 01h set date and time 06h WORD file date 08h WORD file time ---function 11h--- 02h DWORD -> ASCIZ pathname + 13 extra bytes for generated filename (if pathname does not end in backslash, one will be appended) 06h WORD file attributes ---function 12h--- 02h DWORD -> ASCIZ filename 06h WORD file attributes ---function 13h--- 02h WORD file handle 04h DWORD offset of start of region 08h DWORD length of region to lock/unlock 0Ch WORD subfunction (00h = lock, 01h = unlock) ---function 14h--- 02h WORD file handle to be duplicated (new file handle is returned as function return value) ---function 15h--- 02h WORD file handle to be duplicated 04h WORD file handle which is to become the duplicate ---function 1Ah, form 1--- 02h WORD file handle 04h WORD IOCTL function number (00h,01h,06h,07h,0Ah) 06h WORD (ret) status ---function 1Ah, form 2--- 02h WORD drive number 04h WORD IOCTL function number (08h,09h,0Eh,0Fh) 06h WORD (ret) status ---function 1Ah, form 3--- 02h WORD file handle 04h WORD IOCTL function number (02h,03h,54h) 06h DWORD -> buffer 0Ah WORD (call) size of buffer in bytes (ret) size of returned data ---function 1Ah, form 4--- 02h WORD drive number 04h WORD IOCTL function number (04h,05h) 06h DWORD -> buffer 0Ah WORD (call) size of buffer in bytes (ret) size of returned data ---function 1Bh--- 02h WORD file handle of file to be committed to disk ---function 1Ch--- 02h DWORD -> ASCIZ relative filename 06h DWORD -> buffer for absolute filename ---function 1Fh--- 02h WORD desired number of file handles for process Format of DR Multiuser DOS Disk Parameter Block (DPB): Offset Size Description (Table 04039) 00h BYTE drive number (00h = A:) 01h BYTE relative unit number 02h WORD sector size in bytes 04h BYTE sectors per cluster - 1 05h BYTE shift count to convert clusters into sectors 06h WORD number of reserved sectors at beginning of drive 08h BYTE number of FATs 09h WORD number of root directory entries 0Bh WORD number of first sector containing user data 0Dh WORD number of clusterse on disk 0Fh BYTE number of sectors per FAT 10h WORD sector number of first directory sector 12h 4 BYTEs reserved 16h BYTE media ID byte (see #01356) 17h BYTE 00h if disk accessed, FFh if not 18h 6 BYTEs reserved 1Eh WORD number of free clusters on drive Note: this structure is a subset of the MS-DOS 3.x Drive Parameter Block SeeAlso: #04038,#01357 at INT 21/AH=1Fh,#01395 at INT 21/AH=32hTop
INT E0 - GSX-86, GEM/1, GEM/2 - API CL = 73h CH = 04h DS:DX -> parameter blockTop
INT E0 - REAL/32 - "M_ALLOC" - ALLOCATE MEMORY CL = 80h DS:DX -> Memory Parameter Block (MPB) (see #04040) Return: AX = status (0000h success, else error code) SeeAlso: INT E0/CL=81h Format of REAL/32 Memory Parameter Block (MPB): Offset Size Description (Table 04040) 00h WORD (call) desired starting paragraph of block, or 0000h for anywhere (ret) starting paragraph of allocated block 02h WORD (call) minimum number of paragraphs required (ret) actual number of paragraphs allocated 04h WORD (call) maximum number of paragraphs to allocate (ret) actual number of paragraphs allocated 06h WORD process descriptor (see #04026) of memory's owner or 0000h 08h WORD flags (normally set to 0000h on call) SeeAlso: #04041Top
INT E0 - REAL/32 - "M_FREE" - DEALLOCATE MEMORY CL = 81h DS:DX -> Memory Free Parameter Block (MFPB) (see #04041) Return: AX = status (0000h success, else error code) SeeAlso: INT E0/CL=81h Format of REAL/32 Memory Free Parameter Block (MFPB) : Offset Size Description (Table 04041) 00h WORD starting segment of block to be freed 02h WORD reserved (0) SeeAlso: #04040Top
INT E0 - REAL/32 - "DEV_WAITFLAG" - WAIT ON SYSTEM FLAG CL = 84h DX = system flag ID Return: AX = status (0000h success, else error code) if successful, this function does not return until the system flag has been set by an interrupt handler (see INT E0/CL=85h); if the flag was already set, this call returns immediately SeeAlso: INT E0/CL=85h,INT E0/CL=B7hTop
INT E0 - REAL/32 - "DEV_SETFLAG" - SET SYSTEM FLAG CL = 85h DX = system flag ID Return: AX = status (0000h success, else error code) Note: REAL/32 returns an error if the flag was already set, which indicates that a previous logical interrupt has not yet been serviced SeeAlso: INT E0/CL=84hTop
INT E0 - ConcCP/M,DR Multiuser DOS - "Q_MAKE" - CREATE MESSAGE QUEUE CL = 86h DS:DX -> queue descriptor (see #04042) Return: AX = status (0000h success, FFFFh failure) CX = error code (see #04021) Note: also supported by REAL/32 SeeAlso: INT E0/CL=87h Format of DR Multiuser DOS queue descriptor: Offset Size Description (Table 04042) 00h 2 WORDs internal use, initialize to zeros 04h WORD queue flags (see #04043) 06h 8 BYTEs queue name 0Eh WORD length of message 10h WORD number of messages 12h 4 WORDs internal use, initialize to zeros 1Ah WORD offset in system area of buffer for messages Bitfields for REAL/32 queue flags: Bit(s) Description (Table 04043) 0 mutual exclusion queue 1 can not be deleted 2 restricted to system processes 3 RSP message queue 4 reserved for internal use 5 RPL address queue 7-6 reserved for internal use 15-8 reserved for future use SeeAlso: #04042Top
INT E0 - ConcCP/M,DR Multiuser DOS - "Q_OPEN" - OPEN MESSAGE QUEUE CL = 87h DS:DX -> queue parameter block (QPB) (see #04044,#04045) Return: AX = status (0000h success, FFFFh failure) CX = error code (see #04021) Note: also supported by REAL/32 SeeAlso: INT E0/CL=86h,INT E0/CL=88h,INT E0/CL=89h Format of DR Multiuser DOS queue parameter block: Offset Size Description (Table 04044) 00h WORD internal use, initialize to zero 02h WORD queue ID (set by INT E0/CL=87h) 04h WORD internal use, initialize to zero 06h WORD offset of queue message buffer (REAL/32) if FFFFh, then full address of buffer is stored at offest 10h 08h 8 BYTEs queue name ---REAL/32 only---- 10h DWORD segment:offset of queue message buffer SeeAlso: #04045 Format of protected-mode REAL/32 Queue Parameter Block (QPB): Offset Size Description (Table 04045) 00h WORD internal use 02h WORD queue ID 04h WORD internal use 06h DWORD 32-bit offset to buffer 0Ah WORD selector for buffer 0Ch 8 BYTEs queue name SeeAlso: #04044Top
INT E0 - REAL/32 - "Q_DELETE" - DELETE SYSTEM QUEUE CL = 88h DS:DX -> queue parameter block (QPB) (see #04044,#04045) Return: AX = status (0000h success, FFFFh failure) SeeAlso: INT E0/CL=87hTop
INT E0 - ConcCP/M,DR Multiuser DOS - "Q_READ" - READ MESSAGE QUEUE CL = 89h DS:DX -> queue parameter block (QPB) (see #04044,#04045) Return: AX = status (0000h success, FFFFh failure) CX = error code (see #04021) Note: also supported by REAL/32 SeeAlso: INT E0/CL=87h,INT E0/CL=8Ah,INT E0/CL=8Bh,INT E0/CL=B6hTop
INT E0 - ConcCP/M,DR Multiuser DOS - "Q_CREAD" - CONDITIONALLY READ MSG QUEUE CL = 8Ah DS:DX -> queue parameter block (QPB) (see #04044,#04045) Return: AX = status (0000h success, FFFFh failure) CX = error code (see #04021) Note: also supported by REAL/32 SeeAlso: INT E0/CL=87h,INT E0/CL=89h,INT E0/CL=8Ch,INT E0/CL=B6hTop
INT E0 - ConcCP/M,DR Multiuser DOS - "Q_WRITE" - WRITE MESSAGE QUEUE CL = 8Bh DS:DX -> queue parameter block (QPB) (see #04044,#04045) Return: AX = status (0000h success, FFFFh failure) CX = error code (see #04021) Note: also supported by REAL/32 SeeAlso: INT E0/CL=89h,INT E0/CL=8ChTop
INT E0 - ConcCP/M,DR Multiuser DOS - "Q_CWRITE" - CONDITIONALLY WRITE MSG QUEUE CL = 8Ch DS:DX -> queue parameter block (QPB) (see #04044,#04045) Return: AX = status (0000h success, FFFFh failure) CX = error code (see #04021) Note: also supported by REAL/32 SeeAlso: INT E0/CL=8Ah,INT E0/CL=8BhTop
INT E0 - ConcCP/M,DR Multiuser DOS - "P_DISPATCH" - CALL DISPATCHER CL = 8Eh DX = FFFFh (optional) to force dispatch Return: nothing Desc: allow other processes of the same or higher priority to run if they are ready Notes: if DX=FFFFh, a dispatch is forced even if no other process is ready also supported by REAL/32 SeeAlso: INT E0/CL=91h,INT 15/AX=1000h,INT 2F/AX=1680hTop
INT E0 - REAL/32 - "P_TERM" - TERMINATE CALLING PROCESS CL = 8Fh DX = termination code Return: never if successful AX = FFFFh on failure Note: this function can not terminate processes whose KEEP flag is set if the termination code is FFh, this function can terminate the process even if its SYSTEM flag is on; otherwise, only user processes can terminate themselves SeeAlso: INT E0/CL=90h,INT 21/AH=4ChTop
INT E0 - REAL/32 - "P_CREATE" - CREATE A PROCESS CL = 90h DS:DX -> process descriptor in calling process' system memory area (see #04026) Return: AX = status Notes: this call can create more than one process if the specied process descriptor's link (next-process) field is nonzero all reserved and unused fields in the process descriptor should be filled with zeros; passing an invalid descriptor or pointer may crash the system because the descriptor is not checked by the OS the newly-created process(es) is always a native process, which can not make DOS calls SeeAlso: INT E0/CL=8FhTop
INT E0 - ConcCP/M,DR Multiuser DOS - "P_PRIORITY" - SET PROCESS PRIORITY CL = 91h DL = new priority (00h highest to FFh lowest) Return: nothing Notes: sets priority of calling process; transient processes are initialized to priority C8h also supported by REAL/32 SeeAlso: INT E0/CL=8EhTop
INT E0 - ConcCP/M,DR Multiuser DOS - "C_ATTACH" - ATTACH TO DEFAULT CONSOLE CL = 92h Return: AX = status Notes: also supported by REAL/32 if the console is currently owned by another process, this function waits until the console is available SeeAlso: INT E0/CL=93h,INT E0/CL=94h,INT E0/CL=99h,INT E0/CL=9Eh,INT E0/CL=A2hTop
INT E0 - ConcCP/M,DR Multiuser DOS - "C_DETACH" - DETACH FROM DEFAULT CONSOLE CL = 93h Return: AX = status 0000h successfully detached FFFFh detach failed Note: also supported by REAL/32 SeeAlso: INT E0/CL=92h,INT E0/CL=A6hTop
INT E0 - REAL/32 - "C_SET" - SET PROCESS'S DEFAULT CONSOLE CL = 94h DX = console ID Return: AX = status (0000h success, else error code) SeeAlso: INT E0/CL=92h,INT E0/CL=95h,INT E0/CL=99hTop
INT E0 - REAL/32 - "C_ASSIGN" - ASSIGN DEFAULT CONSOLE TO ANOTHER PROCESS CL = 95h DS:DX -> Assign Control Parameter Block (ACPB) (see #04046) Return: AX = status SeeAlso: INT E0/CL=94h,INT E0/CL=99h Format of REAL/32 Assign Control Parameter Block (ACPB): Offset Size Description (Table 04046) 00h BYTE ID of console to assign 01h BYTE flag: if FFh, new process must have CNS as console for this call to succeed 02h DWORD -> process descriptor (see #04026) or 00000000h 06h 8 BYTEs name of process to search for if descriptor field above is zeroTop
INT E0 - REAL/32 - "P_CLI" - RUN COMMAND LINE INTERFACE CL = 96h DS:DX -> Command Line Buffer (CLBUF) (see #04047) Return: AX = status Desc: execute the indicated command concurrently with the calling process; system queue commands, .BAT, .CMD, .COM, and .EXE files can be executed Note: the calling process will lose its virtual console and must reattach it before attempting any I/O SeeAlso: INT E0/CL=92h Format of REAL/32 Command Line Buffer (CLBUF): Offset Size Description (Table 04047) 00h BYTE reserved (0) 01h 128 BYTEs ASCIZ command line 81h BYTE (0)Top
INT E0 - REAL/32 - "C_GET" - GET DEFAULT CONSOLE CL = 99h Return: AX = default console ID SeeAlso: INT E0/CL=94hTop
INT E0 - REAL/32 - "S_SYSDAT" - GET SYSTEM DATA AREA CL = 9Ah Return: ES:AX -> system data area (see #04048) may destroy SI,DI Format of REAL/32 system data area: Offset Size Description (Table 04048) 00h DWORD address of supervisor entry point 04h 36 BYTEs reserved 28h DWORD address of XIOS entry point 2Ch DWORD address of XIOS initialization point 30h 8 BYTEs reserved 38h DWORD address of IRET dispatcher entry point 3Ch DWORD address of RETF dispatcher entry point 40h WORD segment of operating system code 42h WORD paragraph address of first Resident System Process (RSP) 44h WORD paragraph after OS system area 46h BYTE reserved 47h BYTE number of system console devices 48h BYTE number of system list (printer) devices 49h BYTE number of Character Control blocks 4Ah BYTE number of system flags 4Bh BYTE current search disk 4Ch WORD maximum memory per process 4Eh BYTE reserved 4Fh BYTE "dayfile" (flag, true if FFh) 50h BYTE default disk for temporary files 51h BYTE system ticks per second (typically 60) 52h WORD offset of Locked Unused list 54h WORD offset of CCB table 56h WORD offset of system flag table 58h WORD offset of root of Memory Descriptor Unused list 5Ah WORD offset of Memory Free list 5Ch WORD offset of Process Unused list 5Eh WORD offset of Queue Unused list 60h 4 WORDs (no longer used) QMAU 68h WORD offset of root of Ready List 6Ah WORD offset of root of Delay List 6Ch WORD offset of Dispatcher Ready list 6Eh WORD offset of root of Poll List 70h WORD reserved 72h WORD offset of root of Thread List 74h WORD offset of root of Queue List 76h WORD offset of Memory Allocation list 78h WORD segment of version string 7Ah WORD BDOS version number 7Ch WORD OS version number 7Eh WORD number of days since 1978/01/01 80h BYTE current time: hour 81h BYTE current time: minute 82h BYTE current time: second 83h BYTE number of XIOS consoles 84h BYTE number of XIOS list (printer) devices 85h BYTE total number of character devices 86h WORD offset of LCB table 88h WORD bitmap of open files 8Ah BYTE maximum locked records per process 8Bh BYTE maximum open files per process 8Ch WORD offset of process descriptor for math coprocessor's owner 8Eh WORD offset of Auxiliary Control Block 90h 8 BYTEs reserved 98h WORD offset of root Memory Window Descriptor 9Ah WORD reserved 9Ch BYTE number of Auxiliary Control Blocks 9Dh BYTE default search disk 9Eh BYTE reserved 9Fh BYTE number of physical consoles A0h DWORD address of 8087 interrupt handler A4h DWORD address of default 8087 exception handler ... reserved C00h 82 BYTEs XIOS header structure (see #04049) Format of REAL/32 XIOS header structure: Offset Size Description (Table 04049) 00h 3 BYTEs XIOS initialization entry point 03h 3 BYTEs XIOS service entry point 06h WORD segment address of system data 08h DWORD address of supervisor entry point 0Ch BYTE set tick flag 0Dh BYTE ticks per second 0Eh BYTE global Door Open interrupt flag 0Fh BYTE number of Auxiliary Control Blocks 10h BYTE number of physical consoles 11h BYTE number of virtual consoles 12h BYTE number of logical consoles 13h BYTE number of list control blocks 14h WORD offset of CCB table 16h WORD offset of LCB table 18h 16 WORDs offsets into DPH for drives A-P 38h WORD buffer size in paragraphs 3Ah WORD offset of ACB table 3Ch WORD used by OEM 3Eh WORD offset of CCB pointer array 40h WORD offset of LCB pointer array 42h WORD offset of ACB pointer array 44h BYTE 'first' flag 45h BYTE unused 46h WORD offset of print device support table 48h WORD offset of aux device support table 4Ah WORD XIOS extra segment 4Ch WORD segment of save end address for debug 4Eh WORD segment of save start address for debug 50h BYTE number of main virtual console 51h WORD segment of XIOS code SeeAlso: #04048Top
INT E0 - REAL/32 - "P_PDADR" - GET ADDRESS OF PROCESS DESCRIPTOR CL = 9Ch Return: ES:AX -> caller's process descriptor (see #04026) may destroy SI,DI Note: This function is also called by the DR DOS MEM utility when INT 21/AX=4451h returns either 1463h (MDOS 5.00), 1465h (MDOS 5.01), or 1466h (MDOS 5.10). SeeAlso: INT E0/CL=8Fh,INT E0/CL=90hTop
INT E0 - REAL/32 - "P_ABORT" - ABORT PROCESS BY NAME OR DESCRIPTOR CL = 9Dh DS:DX -> Abort Parameter Block (see #04050) Return: AX = status may destroy SI,DI,DS SeeAlso: INT E0/CL=8Fh,INT E0/CL=9Ch Format of REAL/32 Abort Parameter Block: Offset Size Description (Table 04050) 00h WORD process descriptor of process to abort, or 0000h 02h WORD termination code 04h BYTE default console number 05h BYTE reserved (0) 06h 8 BYTEs name of process to abort, if descriptor at offset 00h is 0000hTop
INT E0 - REAL/32 - "L_ATTACH" - ATTACH TO DEFAULT LIST DEVICE CL = 9Eh Return: AX = status may destroy SI,DI SeeAlso: INT E0/CL=92h,INT E0/CL=9Fh,INT E0/CL=A0h,INT E0/CL=A1hTop
INT E0 - REAL/32 - "L_DETACH" - DETACH FROM DEFAULT LIST DEVICE CL = 9Fh Return: AX = status may destroy SI,DI SeeAlso: INT E0/CL=92h,INT E0/CL=9EhTop
INT E0 - REAL/32 - "L_SET" - SET DEFAULT LIST DEVICE CL = A0h DX = ID of list (printer) device Return: AX = status (0000h success, FFFFh if invalid printer number) may destroy SI,DI SeeAlso: INT E0/CL=92h,INT E0/CL=9Eh,INT E0/CL=A4hTop
INT E0 - REAL/32 - "L_CATTACH" - CONDITIONALLY ATTACH TO DEFAULT LIST DEVICE CL = A1h Return: AX = status (00h = successful, FFh = unable to attach) may destroy SI,DI Desc: attach the default list device to the calling process only if it is currently available SeeAlso: INT E0/CL=92h,INT E0/CL=9Eh,INT E0/CL=A0hTop
INT E0 - REAL/32 - "C_CATTACH" - CONDITIONALLY ATTACH TO DEFAULT CONSOLE CL = A2h Return: AL = status (FFh = console attached to another process) Note: if the console is currently owned by another process, this function will return an error code instead of attaching or waiting SeeAlso: INT E0/CL=93h,INT E0/CL=94h,INT E0/CL=99h,INT E0/CL=92hTop
INT E0 - ConcCP/M,DR Multiuser DOS,REAL/32 - "S_OSVER" - GET OS VERSION CL = A3h Return: AX = operating system version (see #04023) (see also INT 21/AX=4451h) SeeAlso: INT E0/CL=0Ch,INT 21/AX=4451hTop
INT E0 - REAL/32 - "L_GET" - GET DEFAULT LIST (PRINTER) DEVICE CL = A4h Return: AL = number of default list device SeeAlso: INT E0/CL=A0hTop
INT E0 - DR Multiuser DOS - "A_ATTACH" - ATTACH AUX DEVICE CL = A5h Return: nothing (DR) AX = status (REAL/32) Desc: attaches the default auxiliary device to the calling process unless it is already attached to another process, in which case the call blocks until the device becomes available Notes: this call should be used before attempting to read or write from the AUX device; however, the I/O calls internally call this function to ensure device ownership also supported by REAL/32 SeeAlso: INT E0/CL=03h,INT E0/CL=04h,INT E0/CL=A6h,INT E0/CL=A7h,INT E0/CL=A8h SeeAlso: INT E0/CL=ACh,INT E0/CL=ADh,INT E0/CL=B0hTop
INT E0 - DR Multiuser DOS - "A_DETACH" - DETACH FROM AUX DEVICE CL = A6h Return: AX = status 0000h successfully detached FFFFh detach failed CX = error code Note: also supported by REAL/32 SeeAlso: INT E0/CL=93h,INT E0/CL=A5h,INT E0/CL=A7hTop
INT E0 - DR Multiuser DOS - "A_CATTACH" - CONDITIONALLY ATTACH TO AUX DEVICE CL = A7h Return: AX = status 0000h attached FFFFh unable to attach Desc: attaches the default auxiliary device to the calling process if it is available Notes: does not block if the device is already in use also supported by REAL/32 SeeAlso: INT E0/CL=A5h,INT E0/CL=A6h,INT E0/CL=A8h,INT E0/CL=B0hTop
INT E0 - DR Multiuser DOS - "A_SET" - SET DEFAULT AUX DEVICE NUMBER CL = A8h DL = auxiliary device number Return: AX = status 0000h successful FFFFh failed CX = error code Desc: specify which physical device will become AUX SeeAlso: INT E0/CL=A5h,INT E0/CL=A9hTop
INT E0 - DR Multiuser DOS - "A_GET" - GET DEFAULT AUX DEVICE NUMBER CL = A9h Return: AL = current default auxiliary device number Desc: determine which physical device is currently AUX SeeAlso: INT E0/CL=A8hTop
INT E0 - DR Multiuser DOS - "A_READBLK" - READ STRING FROM AUX DEVICE CL = ACh DS:DX -> character control block (CHCB) (see #04051,#04052) Return: AX = number of characters read Desc: read characters from the default auxiliary (AUXn:) device into a buffer until the buffer is full or the device is no longer ready Notes: if the device is initially not ready, blocks until at least one character has been read if another process owns AUX, this call blocks until the device becomes available also supported by REAL/32 SeeAlso: INT E0/CL=03h,INT E0/CL=A5h,INT E0/CL=ADh Format of DR Multiuser DOS character control block (CHCB): Offset Size Description (Table 04051) 00h DWORD pointer to character buffer 04h WORD length of character buffer Note: this version of the structure is used by REAL/32 in real mode SeeAlso: #04059 Format of REAL/32 protected-mode Character Control Block (CHCB): Offset Size Description (Table 04052) 00h DWORD 32-bit offset of character buffer 04h WORD selector for character buffer 06h WORD length of character buffer SeeAlso: #04051Top
INT E0 - DR Multiuser DOS - "A_WRITEBLK" - WRITE STRING TO AUX DEVICE CL = ADh DS:DX -> character control block (see #04051,#04052) Return: AX = number of characters written Notes: does not return until at least one character has been written also supported by REAL/32 SeeAlso: INT E0/CL=04h,INT E0/CL=A5h,INT E0/CL=AChTop
INT E0 - DR Multiuser DOS - "A_CONFIG" - GET/SET AUX DEVICE PARAMETERS CL = B0h DX:DX -> AUX device parameter block (see #04053) Return: AX = status 0000h successful parameter block updated FFFFh failed CX = error code Note: also supported by REAL/32 SeeAlso: INT E0/CL=A5h,INT E0/CL=B1h Format of DR Multiuser DOS AUX device parameter block: Offset Size Description (Table 04053) 00h BYTE function (00h get, 01h set) 01h BYTE baud rate (see #04055) FFh = don't change/unknown 02h BYTE parity (see #04054) 03h BYTE stop bits (00h one, 01h 1.5, 02h two, FFh unknown/don't change) 04h BYTE data bits (05h-08h or FFh unknown/don't change) 05h BYTE handshake (00h none, 01h DTS/DSR, 02h RTS/CTS, 04h XON/XOFF, FFh unknown/don't change) 06h BYTE XON character, FFh unknown/don't change 07h BYTE XOFF character, FFh unknown/don't change (Table 04054) Values for DR Multiuser DOS AUX parity: 00h none 01h odd 02h none 03h even 04h stick parity bit FFh don't change/unknown SeeAlso: #04053,#04055 (Table 04055) Values for DR Multiuser DOS AUX baud rate: 00h 50 baud 01h 62.5 baud 02h 75 baud 03h 110 baud 04h 134.5 baud 05h 150 baud 06h 200 baud 07h 300 baud 08h 600 baud 09h 1200 baud 0Ah 1800 baud 0Bh 2000 baud 0Ch 2400 baud 0Dh 3600 baud 0Eh 4800 baud 0Fh 7200 baud 10h 9600 baud 11h 19200 baud 12h 38400 baud 13h 56000 baud 14h 76800 baud 15h 115200 baud SeeAlso: #04053,#04054Top
INT E0 - DR Multiuser DOS - "A_CONTROL" - GET/SET AUX CONTROL PARAMETERS CL = B1h DS:DX -> AUX device control block (see #04056) Return: AX = status 0000h successful control block updated FFFFh failed CX = error code Note: also supported by REAL/32 SeeAlso: INT E0/CL=B0h,INT E0/CL=B2h Format of DR Multiuser DOS AUX device control block: Offset Size Description (Table 04056) 00h BYTE function (00h get, 01h set) 01h BYTE DTR state (00h low, 01h high, FFh unknown/don't change) 02h BYTE RTS state (00h low, 01h high, FFh unknown/don't change) 03h BYTE DSR state (00h low, 01h high, FFh unknown/don't change) 04h BYTE CTS state (00h low, 01h high, FFh unknown/don't change) 05h BYTE DCD state (00h low, 01h high, FFh unknown/don't change) 06h BYTE RI state (00h inactive, 01h active, FFh unknown/don't change)Top
INT E0 - DR Multiuser DOS - "A_BREAK" - SEND BREAK TO AUX DEVICE CL = B2h DX = duration of break in system ticks (0001h-FFFFh) Return: AX = status 0000h successful break signal completed FFFFh failed CX = error code Notes: if the AUX device is currently owned by another process, this call will block until the device becomes available also supported by REAL/32 SeeAlso: INT E0/CL=A5h,INT E0/CL=B1hTop
INT E0 R - REAL/32 - "MP_ALLOC" - ALLOCATE PHYSICAL MEMORY CL = B3h DX = number of 4K pages to allocate Return: AX = number of first 4K page allocated, or FFFFh on error Note: memory allocated with this function is not automatically freed when the process terminates SeeAlso: INT E0/CL=B4h,INT E0/CL=B5hTop
INT E0 R - REAL/32 - "MP_FREE" - DEALLOCATE PHYSICAL MEMORY CL = B4h DX = number of the physical page to free Return: AX = status (0000h successful, FFFFh error) SeeAlso: INT E0/CL=B3hTop
INT E0 R - REAL/32 - "MP_MAP" - MAP PHYSICAL MEMORY CL = B5h DS:DX -> Memory Physical Parameter Block (see #04057) Return: AX = status (0000h successful, FFFFh error) may destroy SI,DI,DS SeeAlso: INT E0/CL=B3h Format of REAL/32 Memory Physical Parameter Block: Offset Size Description (Table 04057) 00h WORD 4K page number in first megabyte to be mapped 02h WORD number of page to map into above page, or 0000h to unmap 04h WORD window number (0000h, as only one window currently supported) 06h WORD reserved Note: all users of the system share the window, so applications should not use it for arguments to system calls, attempt to read/write to/from files via the window, etc.Top
INT E0 - REAL/32 - "Q_NCREAD" - CONDITIONALLY NONDESTRUCTIVELY READ QUEUE CL = B6h DS:DX -> Queue Parameter Block (QPB) (see #04045,#04044) Return: AX = status SeeAlso: INT E0/CL=89h,INT E0/CL=8AhTop
INT E0 - REAL/32 - "DEV_TWAITFLAG" - TIMED WAIT ON SYSTEM FLAG CL = B7h DS:DX -> Flag Parameter Block (FPB) (see #04058) Return: AX = status may destroy SI,DI,DS Note: if the flag was already set, this function returns immediately SeeAlso: INT E0/CL=84h,INT E0/CL=85h Format of REAL/32 Flag Parameter Block (FPB): Offset Size Description (Table 04058) 00h WORD number of system flag on which to wait 02h WORD maximum number of system ticks (see INT E0/CL=9Ah) to waitTop
INT E0 - REAL/32 - "DEV_MAP" - GET/SET SERIAL/PARALLEL PORT MAPPINGS CL = B8h DS:DX -> Device Map Parameter Block (DEVPB) (see #04059) Return: nothing??? may destroy SI,DI,DS Format of REAL/32 Device Map Parameter Block (DEVPB): Offset Size Description (Table 04059) 00h WORD direction (00h = get current mapping, 01h = set new mapping) 02h 4 BYTEs physical device IDs which map into LPT1 - LPT4 06h 4 BYTEs physical device IDs which map into COM1 - COM4 Note: LPT4 and COM3/COM4 are reserved on early versions of Multiuser DOS, but are supported from at least CCI Multiuser DOS v7.22 onwardTop
INT E0 - REAL/32 - "L_TIMEOUT" - SET LIST DEVICE TIMEOUT CL = B9h DX = timeout value in system ticks (see #04048) 0000h-FFEFh = new number of system ticks FFFDh = get current value without changing FFFEh = start timeout count FFFFh = never timeout Return: AX = status, or current timeout value if DX=FFFDh on entry may destroy SI,DI SeeAlso: INT E0/CL=BAhTop
INT E0 - REAL/32 - "A_TIMEOUT" - SET AUX DEVICE TIMEOUT CL = BAh DX = timeout value in system ticks (see #04048) 0000h-FFEFh = new number of system ticks FFFDh = get current value without changing FFFEh = start timeout count FFFFh = never timeout Return: AX = status, or current timeout value if DX=FFFDh on entry may destroy SI,DI SeeAlso: INT E0/CL=B9hTop
INT E0 - DR Multiuser DOS - "P_DELAY" - DELAY EXECUTION CL = BDh DX = delay in system ticks (typically 16.6 ms/tick) Return: after the delay elapses no results Notes: the length of a system tick is installation-dependent (typically 1/50 or 1/60 second); the length may be determined by reading the TICKSPERSEC value from the system data segment the actual delay before the process is rescheduled to run may be up to one tick longer than requested; the delay between rescheduling and actual execution cannot be predicted if higher-priority processes are awaiting a turn at the CPU SeeAlso: INT 15/AH=86h,INT 1A/AX=FF01h,INT 2F/AX=1224h,INT 62/AX=0096hTop
INT E0 - PCROBOTS v1.41 - "SWAPTASK" - END CURRENT ROBOT'S TURN AX = 0000h Return: nothing Program: PCROBOTS is P.D. Smith's adaptation of Tom Poindexter's CROBOTS, in which specially-written .COM or .EXE programs form robots battling each other in a user-defined arenaTop
INT E0 - PCROBOTS v1.41 - "MOVEMENT" - START MOVING AX = 0001h BX = speed (0-maximum for robot) CX = direction (0-359 degrees) Return: nothing Notes: the speed will change to the specified value at the maximum acceleration the robot is capable of; if the robot is already moving faster than its maximum maneuverability speed, it will not be able to change direction this call also terminates the current robot's turn SeeAlso: AX=0000h,AX=0002h,AX=0003hTop
INT E0 - PCROBOTS v1.41 - "SCAN" - SCAN FOR OTHER ROBOTS IN THE GIVEN DIRECTION AX = 0002h BX = direction (0-359 degrees) CX = resolution (0-45 degrees) Return: AX = status FFFFh if nothing detected else robot ID (0-19) BX = range to detected robot Notes: the scan searches within CX degrees to either side of the specified direction the scanner will see right through walls, but shells will not pass through walls this call also terminates the current robot's turn SeeAlso: AX=0000h,AX=0001h,AX=0003hTop
INT E0 - PCROBOTS v1.41 - "SHOOT" - FIRE A SHELL AT ANOTHER ROBOT AX = 0003h BX = direction (0-359 degrees) CX = range (0-700) Return: AX = status (0000h not fired, else ID of shell fired) Notes: up to seven shells may be in flight for a robot at one time; the cannon takes 50 ticks to reload this call also terminates the current robot's turn SeeAlso: AX=0000h,AX=0001h,AX=0002h,AX=002ChTop
INT E0 - PCROBOTS v1.41 - "GETXY" - GET ROBOT'S CURRENT POSITION AX = 0010h Return: BX = current X coordinate (0-999) CX = current Y coordinate (0-999)Top
INT E0 - PCROBOTS v1.41 - "TRANSMIT" - SEND DATA TO ANOTHER ROBOT AX = 0011h BX = target robot ID CX = data to be sent Return: AX = status (0000h data could not be sent, 0001h data sent) Note: this call costs one unit of battery powerTop
INT E0 - PCROBOTS v1.41 - "RECEIVE" - GET DATA FROM OTHER ROBOTS AX = 0012h Return: AX = status 0000h no data available 0001h data retrieved BX = sender's ID CX = data Note: each robot has a 20-word receive FIFO; if the FIFO is full, other robots will be unable to send more data until some is readTop
INT E0 - PCROBOTS v1.41 - "DAMAGE" - DETERMINE HOW MUCH DAMAGE SUSTAINED AX = 0013h Return: BX = damage status Note: the initial value depends on configuration, but is typically 100; as the robot is damaged, it decreasesTop
INT E0 - PCROBOTS v1.41 - "SPEED" - DETERMINE HOW FAST ROBOT IS MOVING AX = 0014h Return: BX = current speedTop
INT E0 - PCROBOTS v1.41 - "BATTERY" - DETERMINE HOW MUCH BATTERY POWER LEFT AX = 0015h Return: BX = current battery charge Note: the battery starts off with 1000 units of charge, and is constantly being charged by solar panels and constantly discharged by motion; the battery is charged at 4 units per turn and discharged at 0.1*speed units per turn.Top
INT E0 - PCROBOTS v1.41 - "TICKS" - DETERMINE HOW LONG SINCE GAME STARTED AX = 0016h Return: BX:CX = number of game ticks elapsed (not related to real time)Top
INT E0 - PCROBOTS v1.41 - "L_SIN" - GET SCALED SINE OF AN ANGLE AX = 0017h BX = angle (0-359 degrees) Return: BX:CX = 100000*sine of angle SeeAlso: AX=0018h,AX=0019h,AX=001Ah,AX=001BhTop
INT E0 - PCROBOTS v1.41 - "L_COS" - GET SCALED COSINE OF AN ANGLE AX = 0018h BX = angle (0-359 degrees) Return: BX:CX = 100000*cosine of angle SeeAlso: AX=0017h,AX=0019h,AX=001AhTop
INT E0 - PCROBOTS v1.41 - "L_TAN" - GET SCALED TANGENT OF AN ANGLE AX = 0019h BX = angle (0-359 degrees) Return: BX:CX = 100000*tangent of angle SeeAlso: AX=0017h,AX=0018h,AX=001AhTop
INT E0 - PCROBOTS v1.41 - "L_ATAN" - GET ANGLE GIVEN SCALED TANGENT AX = 001Ah BX:CX = 100000*tangent of an angle Return: AX = angle (-90 to +90 degrees) SeeAlso: AX=0017h,AX=0018h,AX=0019hTop
INT E0 - PCROBOTS v1.41 - "SQRT" - DETERMINE SQUARE ROOT OF A NUMBER AX = 001Bh BX:CX = value Return: BX:CX = square root SeeAlso: AX=0017hTop
INT E0 - PCROBOTS v1.41 - "SET_PATTERN" - SPECIFY ROBOT'S DISPLAY IMAGE AX = 001Ch BX:CX -> pattern array Return: nothing Note: the pattern array consists of five bytes, the low five bits of each specifying the bit pattern for one line of the robot's screen displayTop
INT E0 - PCROBOTS v1.41 - "DEBUG_FLAG" - SET/CLEAR MARKERS NEXT TO ROBOT'S NAME AX = 001Dh BX = flag number (0 or 1) CX = new value (0 reset, 1 set) Return: nothing Program: PCROBOTS is P.D. Smith's adaptation of Tom Poindexter's CROBOTS, in which specially-written .COM or .EXE programs form robots battling each other in a user-defined arena Note: the two flag markers may be used for any purpose, typically for debugging to provide a visual display of progressTop
INT E0 - PCROBOTS v1.41 - "BUY_ARMOUR" - BUY OR SELL ARMOR FOR ROBOT AX = 001Eh BX = number of armor units to buy (negative to sell) Return: nothing Note: each armor unit is worth 50 battery units; the robot's armor rating will not go above its initial rating, so attempts to purchase more will waste battery units SeeAlso: AX=001FhTop
INT E0 - PCROBOTS v1.41 - "BUY_SHELLS" - BUY ADDITIONAL CANNON SHELLS AX = 001Fh BX = number of shells to buy Return: nothing Note: each shell costs ten battery units SeeAlso: AX=001Eh,AX=0020hTop
INT E0 - PCROBOTS v1.41 - "SHELLS LEFT" - DETERMINE HOW MANY SHELLS ROBOT HAS AX = 0020h Return: BX = number of shells remaining SeeAlso: AX=001FhTop
INT E0 - PCROBOTS v1.41 - "GET LOCAL MAP" AX = 0021h BX:CX -> 81-byte buffer for map (see #04060) Return: buffer filled with 9x9 area of map centered on robot's position (Table 04060) Values for PCROBOTS map squares: 2Eh '.' empty square 44h 'D' damaging trap 52h 'R' refueling point 58h 'X' wallTop
INT E0 - PCROBOTS v1.41 - "INVISIBILITY" - CONTROL ROBOT'S INVISIBILITY DEVICE AX = 0022h BX = new state (0000h become visible, 0001h become invisible) Return: nothing Notes: this function has no effect if the robot is not capable of invisibility the robot can only stay invisible for 100 turns, after which it will automatically become visible; it must also be remain visible for as many turns as it was invisible before it can turn invisible again SeeAlso: AX=0024h,AX=0080hTop
INT E0 - PCROBOTS v1.41 - "GET_SHELL_STATUS" - FIND OUT WHAT HAPPENED TO SHELL AX = 0023h Return: BX = status of last shell to land 0000h missed completely 0001h hit a wall 0002h hit a robot within 50-square radius 0003h hit a robot within 25-square radius 0004h hit a robot within 5-square radiusTop
INT E0 - PCROBOTS v1.41 - "IS_INVISIBLE" - DETERMINE WHETHER ROBOT IS INVISIBLE AX = 0024h Return: BX = visibility (0000h visible, 0001h invisible) SeeAlso: AX=0022h,AX=0080hTop
INT E0 - PCROBOTS v1.41 - "L_ATAN2" - GET ARCTANGENT AX = 0025h BX = Y CX = X Return: AX = angle (arctangent of Y/X)Top
INT E0 - PCROBOTS v1.41 - "GET_ROBOT_ID" - DETERMINE CURRENT ROBOT'S IDENTIFIER AX = 0026h Return: AX = robot IDTop
INT E0 - PCROBOTS v1.41 - "REGISTER_IFF" - REGISTER FRIEND/FOE IDENT STRING AX = 0027h BX:CX = ASCIZ IFF string Return: nothing Note: the IFF string may only be set once SeeAlso: AX=0028h,AX=0029hTop
INT E0 - PCROBOTS v1.41 - "CHECK_IFF" - QUERY FRIEND/FOE IDENTIFICATION STRING AX = 0028h BX = robot ID to test Return: AX = status 0000h IFF strings match 0001h IFF strings differ or invalid robot ID SeeAlso: AX=0027hTop
INT E0 - PCROBOTS v1.41 - "REGISTER_NAME" - SPECIFY ROBOT'S NAME AX = 0029h BX:CX -> ASCIZ name string Return: nothing Note: the name may only be set once SeeAlso: AX=0027h,AX=002AhTop
INT E0 - PCROBOTS v1.41 - "FIND_NAME" - SEARCH FOR ROBOT WITH GIVEN NAME AX = 002Ah BX:CX -> ASCIZ name string DX = first ID to check Return: AX = robot ID or FFFFh if no robot with specified name SeeAlso: AX=0028h,AX=0029h,AX=002BhTop
INT E0 - PCROBOTS v1.41 - "GET_TEAM_ID" - DETERMINE TEAM MEMBERSHIP OF ROBOT AX = 002Bh Return: AX = team ID (0-2) or FFFFh if 'loner' SeeAlso: AX=0029hTop
INT E0 - PCROBOTS v1.41 - "GET_ASHELL_STATUS" - FIND OUT WHAT HAPPENED TO SHELL AX = 002Ch BX = shell ID Return: AX = status 0000h missed completely 0001h hit a wall 0002h hit a robot within a 50-square radius 0003h hit a robot within a 25-square radius 0004h hit a robot within a 5-square radius 0005h shell not known (too old or not yet fired) 0006h shell still in flight SeeAlso: AX=0003hTop
INT E0 - PCROBOTS v1.41 - "REGISTER_X" - SELECT AUTOMATIC X POSITION UPDATES AX = 002Dh BX:CX -> X word variable Return: AX = status (0001h OK, 0000h problem with address) Note: after this call, PCROBOTS will automatically update the specified word whenever the robot moves SeeAlso: AX=002EhTop
INT E0 - PCROBOTS v1.41 - "REGISTER_Y" - SELECT AUTOMATIC Y POSITION UPDATES AX = 002Eh BX:CX -> Y word variable Return: AX = status (0001h OK, 0000h problem with address) Note: after this call, PCROBOTS will automatically update the specified word whenever the robot moves SeeAlso: AX=002DhTop
INT E0 - PCROBOTS v1.41 - "CONFIGURE" - CUSTOMIZE ROBOT AX = 0080h BX = basic configuration (see #04061) CX = advanced configuration (see #04062) Return: AX = status (0001h OK, 0000h not first call in program) Program: PCROBOTS is P.D. Smith's adaptation of Tom Poindexter's CROBOTS, in which specially-written .COM or .EXE programs form robots battling each other in a user-defined arena Notes: a maximum of ten points may be allocated to the robot; if you attempt to allocate more, some items will be given a value of zero. If this function is not called, each attribute is set to the default value of 2. if the invisibility option is chosen, the robot will start with only 900 cannon shells instead of the default 1000 Bitfields for PCROBOTS basic configuration: Bit(s) Description (Table 04061) 0-3 maximum speed (0-4 = 50,75,100,150,200) 4-7 maneuverability (0-4 = 20%,35%,50%,75%,100%) 8-11 cannon range (0-4 = 300,500,700,1000,1500) 12-15 robot armor (0-4 = 50,75,100,150,200) Bitfields for PCROBOTS advanced configuration: Bit(s) Description (Table 04062) 0-2 robot acceleration (0-4 = 5,7,10,15,20) 3 capable of invisibilityTop