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Three user written SPL/3000 procedures, which satisfy the requirements described above, are shown here. They are each compiled into a User Subprogram Library named USERUSL by using the MPE/3000 SPL
command. (See the MPE Commands Reference Manual for a discussion of the SPL command.)
:SPL INIT,USERUSL
PAGE 0001 HP32100A.06.05 [4W] (C) HEWLETT-PACKARD COMPANY 1976
00001000 00000 0 $CONTROL SUBPROGRAM
00002000 00000 0 $CONTROL SEGMENT=INIT'SEG
00003000 00000 0 BEGIN
00004000 00000 1 LOGICAL PROCEDURE HP32201'USFRINIT(STRING,LEN,
USERSPACE,PROCSPACE);
00005000 00000 1 BYTE ARRAY STRING;
00006000 00000 1 INTEGER LEN;
00007000 00000 1 ARRAY USERSPACE;
00008000 00000 1 ARRAY PROCSPACE;
00009000 00000 1
00010000 00000 1 BEGIN
00011000 00000 2 MOVE STRING:=";Q#USERINIT 1.0#; Q#/S SHORT#; 5 SHORT;";
00012000 00032 2 LEN:=39;
00013000 00034 2 STRING(LEN):=%15; < <CR> >
00014000 00037 2 HP32201'USERINIT:=TRUE;
00015000 00041 2 END;
00016000 00000 1 END.
PRIMARY DB STORAGE=%000; SECONDARY DB STORAGE=%00000
NO. ERRORS=0000; NO. WARNINGS=0000
PROCESSOR TIME=0:00:00; ELAPSED TIME=0:00:17
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:SPL COMMAND, USERUSL
PAGE 0001 HP32100A.06.05 [4W] (C) HEWLETT-PACKARD COMPANY 1976
00001000 00000 0 $CONTROL SUBPROGRAM
00002000 00000 0 $CONTROL SEGMENT=COMMAND'SEG
00003000 00000 0 BEGIN
00004000 00000 1
00005000 00000 1 LOGICAL PROCEDURE HP32201'USERCOMMAND(STRING,L
EN,USERSPACE,PROCSPACE);
00006000 00000 1 BYTE ARRAY STRING;
00007000 00000 1 INTEGER LEN;
00008000 00000 1 ARRAY USERSPACE;
00009000 00000 1 ARRAY PROCSPACE;
00010000 00000 1 BEGIN
00011000 00000 2 LOGICAL POINTER WORDPTR;
00012000 00000 2 LOGICAL ARRAY L(0:10);
00013000 00000 2 BYTE ARRAY B(*)=L;
00014000 00000 2 INTRINSIC PRINT,FWRITE;
00015000 00000 2
00016000 00000 2 HP32201'USERCOMMAND:=TRUE;
00017000 00011 2 MOVE B:="USERCOMMAND ENTERED!";
00018000 00031 2 FWRITE(USERSPACE(1),L,-20,0):
00019000 00037 2 @WORDPTR:=@STRING&LSR(1);
00020000 00042 2 PRINT(WORDPTR,-LEN,0);
00021000 00046 2 < <
00022000 00046 2 < < IMPLEMENT THE COMMAND "QUIT"
00023000 00046 2 < < CHANGE "QUIT" TO "KEEP" AND INSERT ";END" AT THE END
00024000 00046 2 < < OF THE STRING
00025000 00046 2 > >
00026000 00046 2 IF STRING="QUIT" THEN
00027000 00057 2 BEGIN
00028000 00057 3 MOVE STRING:="KEEP";
00029000 00067 3 MOVE STRING(LEN):=";END";
00030000 00100 3 STRING(LEN:=LEN+4):=13; < <CR> >
00031000 00107 3 END;
00032000 00107 2 END;
00033000 00000 1 END.
PRIMARY DB STORAGE=%000; SECONDARY DB STORAGE=%00000
NO. ERRORS=0000; NO. WARNINGS=0000
PROCESSOR TIME=0:00:01; ELAPSED TIME=0:00:26
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:SPL ADD,USERUSL
PAGE 0001 HP32100A.06.05 [4W] (C) HEWLETT-PACKARD COMPANY 1976
00001100 00000 0 $CONTROL SUBPROGRAM
00002000 00000 0 $CONTROL SEGMENT=ADD'SEG
00003000 00000 0 BEGIN
00004000 00000 1 LOGICAL PROCEDURE HP32201'USERADD(STRING,LEN,U
SERSPACE,PROCSPACE);
00005000 00000 1 BYTE ARRAY STRING;
00006000 00000 1 INTEGER LEN;
00007000 00000 1 ARRAY USERSPACE;
00008000 00000 1 ARRAY PROCSPACE;
00009000 00000 1 BEGIN
00010000 00000 2 LOGICAL POINTER WORDPRT;
00011000 00000 2 LOGICAL ARRAY L(0:10);
00012000 00000 2 BYTE ARRAY B(*)=L;
00013000 00000 2 BYTE ARRAY SPACES(0:9);
00014000 00000 2 BYTE ARRAY INPUT(0:255);
00015000 00000 2 BYTE POINTER SRC'PTR;
00016000 00000 2 BYTE POINTER DFST'PTR;
00017000 00000 2 DEFINE TAB'CHAP="*";
00018000 00000 2 DEFINE INDENTATION=10-((@DEST'PTR-@STRING) MOD 10)#;
00019000 00000 2 EQUATE CARRIAGE'RETURN=13;
00020000 00000 2 INTRINSIC PRINT,FWRITE;
00021000 00000 2
00022000 00000 2 HP32201'USERADD:=TRUE;
00023000 00021 2 MOVE B:="USERADD ENTERED!";
00024000 00037 2 FWRITE(USERSPACE(1),L-16,0);
00025000 00045 2 @WORDPTR:=@STRING&LSB(1);
00026000 00050 2 PRINT(WORDPTR,-LEN,0);
00027000 00054 2 <<
00028000 00054 2 << SEARCH FOR *'S--WHEN FOUND, INSERT SPACES
00029000 00054 2 << THE TEXT IS "TABBED" OVER TO THE NEXT COLUMN THAT IS
00030000 00054 2 << A MULTIPLE OF TEN
00031000 00054 2 >>
00032000 00054 2 MOVE INPUT:=STRING,(LEN);
00033000 00060 2 INPUT(LEN):=CARRIAGE'RETURN;
00034000 00063 2 MOVE SPACES:=" ";
00035000 00076 2
00036000 00076 2 TOS:=@STRING;
00037000 00077 2 TOS:=@INPUT;
00038000 00100 2
00039000 00100 2 TAB:
00040000 00100 2 MOVE *:=* WHILE AN,0;
00041000 00101 2 @SRC'PTR:=TOS;
00042000 00102 2 @DEST'PTR:=TOS;
00043000 00103 2
00044000 00103 2 IF SRC/PTR=TAB'CHAR THEN
00045000 00106 2 BEGIN
00046000 00106 3 MOVE DEST'PTR:=SPACES,(INDENTATION),2;
00047000 00117 3 LEN:=LEN+INDENTATION-1;
00048000 00127 3 TOS:=@SRC'PTR+1;
00049000 00131 3 GO TO TAB;
00050000 00132 3 END;
00051000 00132 2
00052000 00132 2 IF SCR'PTR=CARRIAGE'RETURN THEN RETURN;
00053000 00136 2
00054000 00136 2 DEST'PTR:=SCR'PTR;
00055000 00140 2 TOS:=@DEST'PTR+1;
00056000 00142 2 TOS:=@SRC'PTR+1;
00057000 00144 2 GO TO TAB;
00058000 00145 2 END;
00059000 00000 1 END.
PRIMARY DB STORAGE=%0000; SECONDARY DB STORAGE=%00000
NO. ERRORS=0000; NO. WARNINGS=0000
PROCESSOR TIME=0:00:01; ELAPSED TIME=0:00:16
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Next, the Segmenter subsystem is accessed with the MPE/3000 SEGMENTER command. The USL Segmenter command is used to identify the USL file (USERUSL) which contains the function procedures to be added to the SL file, and the BUILDSL command is used to create an SL file with 20 records maximum and one disc extent. The segment containing each procedure is added to the SL file using the ADDSL command, and by specifying the segment name for each procedure (see the $CONTROL SEGMENT= statement at the beginning of each SPL/3000 procedure listed above). The LISTSL command shows the segments added and the names of entry points for each segment (in this case, there is only one entry point for each). Assuming we are logged-on in the PUB group of the SCC account, note that the SL file name is SL.PUB.SCC, so that the segmented library of the PUB group in the SCC account will have to be searched for these procedures. EXIT is typed to terminate Segmenter operation. (See the MPE Segmenter Reference Manual for a more detailed explanation of the Segmenter and segmented libraries). Note that if the procedures are to be installed in the system SL, all three procedures should be put in the same segment, if possible, rather than in separate segments - as was done here. This saves space in the CST (Code Segment Table), which is shared by everyone on the system and keeps track of the segments in the system SL.
:SEGMENTER
HP32050A.00.00 SEGMENTFR/3000 (C) HFWLETT-PACKARD CO. 1979
-USL USERUSL
-BUILDSL SL,20,1
-ADDSL INIT'SEG
-ADDSL COMMAND'SEG
-ADDSL ADD'SEG
-LISTSL
SL FILE SL.PUB.SCC
SEGMENT 0 INIT'SEG LENGTH 44
ENTRY POINTS CHECK CAL STT ADR
HP32201'USERINI 0 C 1 0
EXTERNALS CHECK STT SFC
100
SEGMENT 2 COMMAND'SEG LENGTH 114
ENTRY POINTS CHECK CAL STT ADR
HP32201'USERCOM 0 C 1 0
EXTERNALS CHECK STT SFC
PRINT 0 3 ?
FWRITE 0 2 ?
010
SEGMENT 2 ADD'SEG LENGTH 154
ENTRY POINTS CHECK CAL STT ADR
HP32201'USERADD 0 C 2 0
EXTERNALS CHECK STT SEG
PRINT 0 3 ?
FWRITE 0 2 ?
001
USED 3000 AVAILABLE 2000
-EXIT
END OF SUBSYSTEM
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EDIT/3000 is invoked using the MPE RUN command. The PARM=16 parameter is used since the segmented libraries need to be searched. The USERINIT procedure is called, which prints out "USERINIT 1.0" and "/S SHORT" and executes the EDIT/3000 command S [ET] SHORT. Since this procedure returns TRUE (see the listing above), both of the other two procedures will be invoked. The T[EXT] AFILE command (in response to EDIT/3000's slash prompt) causes the USERCOMMAND procedure to be called, since it is called whenever a command line has been entered. The USERCOMMAND procedure print"USERCOMMAND ENTERED!" and repeats the command line. When the ADD command is used and a line of text is entered, the USERADD procedure is called which prints out "USERADD ENTERED!" and repeats the line. The line is accepted since USERADD returns the value TRUE (see the listing above). When AFILE is listed, we see that USERADD has also interpreted each asterisk (*) in a line of text as a tab. The QUIT command is interpreted by the USERCOMMAND procedure as the standard EDIT/3000 commands K[EEP] ;END. In this case, the filename is defaulted; note that it is printed out below the command. (The QUIT command also allows for a filename to be specified if desired; see the listing of the USERCOMMAND procedure.)
:RUN EDITOR.PUB.SYS;PARM=16
HP32201A.7.04 EDIT/3000 WED, JAN 17, 1979, 2:03 PM
(C) HEWLETT-PACKARD CO. 1978
USERINIT 1.0
/S SHORT
/T AFILE
USERCOMMAND ENTERED!
T AFILE
/LIST ALL
USERCOMMAND ENTERED!
LIST ALL
1 THIS IS LINE ONE.
2 THIS IS LINE TWO.
/ADD
USERCOMMAND ENTERED!
ADD
3 *COLUMN TEN, LINE THREE.
USERADD ENTERED.
*COLUMN TEN,LINE THREE.
4 ARC*123
USERADD ENTERTED!
ABC*123
5 //
...
;/LIST ALL
USERCOMMAND ENTERED!
LIST ALL
1 THIS IS LINE ONE.
2 THIS IS LINE TWO.
3 COLUMN TEN,LINE THREE.
4 ABC 123
/OUIT
USERCOMMAND ENTERED!
QUIT
AFILE
PURGE OLD?Y
END OF PROGRAM
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