| 词条 | COMPASS/Sample Code |
| 释义 |
This COMPASS sample code[1] displays the calendar of the year given as a parameter on the terminal. If no parameter is given, then the calendar of the current year is displayed. IDENT CALEND,FWA ABS SST ENTRY CALEND,RFL= SYSCOM B1 TITLE DISPLAY CALENDAR OF A SPECIFIC YEAR. COMMENT DISPLAY CALENDAR OF A SPECIFIC YEAR. CALEND SPACE 4,10 *** CALEND - DISPLAY CALENDAR OF A SPECIFIC YEAR. * * THIS PROGRAM DISPLAYS ON THE TERMINAL THE CALENDAR OF* THE YEAR GIVEN AS A PARAMETER. IF NO PARAMETER IS GIVEN* THEN THE CALENDAR OF THE CURRENT YEAR IS DISPLAYED. SPACE 4,10 *** CONTROL STATEMENT CALL. * * CALEND, YEAR. * * YEAR : MUST BE IN THE FORMAT: CYM. (EACH PART IS OPTIONAL.)* C: MAY BE G (FOR GREGORIAN) OR J (FOR JULIAN CALENDAR). * DEFAULT IS G. * Y: A 1 TO 7-DIGIT NUMBER INDICATING THE YEAR YOU WANT TO* DISPLAY THE CALENDAR OF. IF IT IS NOT IN THE RANGE* [ 0 .. 9999 ] (FOR GREGORIAN) OR [ 0 .. 6999 ] (FOR* JULIAN CALENDAR) IT IS PUT IN THIS RANGE. DEFAULT IS* THE CURRENT YEAR.* M: MAY BE D (INDICATING THAT Y IS DECIMAL) OR B (INDICATING * IT IS OCTAL). DEFAULT IS D. * * CALEND. DISPLAYS CURRENT GREGORIAN CALENDAR.* CALEND, J. DISPLAYS CURRENT JULIAN CALENDAR. SPACE 4,10 ORG 110B FWA BSS 0 * CONSTANT. BUFL EQU 401B * FET. F BSS 0 ZZZZZG0 FILEB FBUF,BUFL,DTY=2RTT * STRUCTURED CONSTANTS.* MONTH LENGTHS DPM VFD 5/31,5/29,5/31,5/30,5/31,5/30,5/31,5/31,5/30,5/31,5/30,5/31 + VFD 5/31,5/28,5/31,5/30,5/31,5/30,5/31,5/31,5/30,5/31,5/30,5/31 * DAY NAMES. DAYT DATA L*SUN* DATA L*MON* DATA L*TUE* DATA L*WED* DATA L*THU* DATA L*FRI* DATA L*SAT* * CALENDAR TYPES. CT DATA A*GREGORIAN* DATA A*JULIAN* * OUTPUT STRINGS. HDR1 DATA 20H DATA C*XXXXXXXXXX CALENDAR FOR XXXX* DATA 0 DATA C* J A N U A R Y F E B R U A R Y M A R C ,H A P R I L* HDR1L EQU *-HDR1 HDR2 DATA 0 DATA C* M A Y J U N E J U L Y, A U G U S T* HDR2L EQU *-HDR2 HDR3 DATA 0 DATA C* S E P T E M B E R O C T O B E R N O V E M B, E R D E C E M B E R* HDR3L EQU *-HDR3 LINE BSS 0 DUP 77,1 DATA 1R LINEL EQU *-LINE W4M SPACE 4,10 ** W4M - WRITE A 4-MONTH ROW OF THE CALENDAR.* * ENTRY (X5) = 5/LENGTH OF FIRST MONTH, 5/LENGTH OF SECOND...* (X0) = 48/X, 12/START DAY OF FIRST MONTH W4M SUBR ENTRY / EXIT MX4 -12 BX0 -X4*X0 SB4 4 MONTHS PER ROW W4M1 LX5 5 MX7 -5 BX6 -X7*X5 LENGTH OF MONTH BX2 -X4*X0 START DAY OF MONTH IX3 X2+X6 SUM THEM SX2 7 TAKE MOD 7 SX1 X3 IX1 X1/X2 SX2 X1 LX2 3 *8 IX2 X2-X1 *7 IX3 X3-X2 START DAY OF NEXT MONTH LX0 12 BX0 X0+X3 SB4 B4-B1 NE B4,W4M1 REPEAT FOR 4 MONTHS SA0 B0 LINE COUNTER W4M2 LX0 60-12*4 LX5 60-5*4 SB4 B0+ MONTH COUNTER SB3 4 MONTHS PER LINE SB5 6 DAYS PER MONTH PER LINE W4M3 MX7 -12 BX3 -X7*X0 START DAY OF THIS MONTH LX0 12 MX7 -5 LX5 5 BX4 -X7*X5 LENGTH OF THIS MONTH SB6 B0+ DAY COUNTER W4M4 SX7 1R SB2 B6+B6 SB2 B2+B6 3*B6 SX1 B4 LX1 4 16*B4 SB2 B2+B4 SB2 B2+B4 SX1 X1+B2 SX1 X1+LINE+6 X1 = LINE + 18*B4 + 3*B6 + 6 SA7 X1 INITIALIZE TO BLANKS SA7 A7+B1 SB7 B6+B6 2*B6 SB7 B7+B7 4*B6 SB7 B7+B7 8*B6 SB7 B7-B6 7*B6 SB7 B7+A0 SB2 X3 SB7 B7-B2 SB7 B7+B1 DAY NUMBER = 7*B6 + A0 - X3 + 1 LT B7,B1,W4M7 IF NULL ENTRY (B7 .LE. 0) SB2 X4 LENGTH OF MONTH GT B7,B2,W4M7 IF NULL ENTRY (B7 .GT. X4) SB2 10 LT B7,B2,W4M6 IF ONE CHARACTER SX7 1R0 W4M5 SB7 B7-B2 SX7 X7+B1 GE B7,B2,W4M5 UNTIL B7 < 10 SA7 X1+ W4M6 SX7 B7+1R0 SA7 X1+1 W4M7 SB6 B6+B1 NE B6,B5,W4M4 NEXT DAY SB4 B4+B1 NE B4,B3,W4M3 NEXT MONTH SA1 DAYT+A0 SET DAY NAME MX2 -6 LX1 6 BX7 -X2*X1 SA7 LINE+1 LX1 6 BX7 -X2*X1 SA7 A7+B1 LX1 6 BX7 -X2*X1 SA7 A7+B1 WRITES F,LINE,LINEL SA0 A0+1 INCREMENT LINE NUMBER SB7 A0-7 CHECK IF .EQ. 7 NE B7,W4M2 NEXT LINE JP W4MX RETURN CALEND SPACE 4,10 * MAIN PROGRAM. CALEND SB1 1 SA2 ACTR NUMBER OF PARAMETERS SB2 X2+ LE B2,B1,CAL1 IF ONE OR ZERO PARAMETERS SX1 =C* TOO MANY PARAMETERS.* EQ ERR ABORT CAL1 R= A1,ARGR MX4 42 BX2 X4*X1 GET PARAMETER LX2 6 BX3 -X4*X2 GET FIRST CHARACTER BX5 X4*X2 REST OF PARAMETER (YEAR) SB7 B1 DECIMAL BASE FOR CONVERSION SB6 B1 INDICATE JULIAN CALENDAR SB3 X3-1RJ EQ B3,CAL1.1 IF JULIAN CALENDAR SB6 B0+ INDICATE GREGORIAN CALENDAR SB3 X3-1RG EQ B3,CAL1.1 IF GREGORIAN CALENDAR BX5 X4*X1 IF NO CALENDAR TYPE SPECIFIED (GREGORIAN) CAL1.1 ZR X5,CAL2 IF NO YEAR (DEF. CURRENT YEAR) RJ DXB CONVERT TO BINARY SX1 =C* ERROR IN PARAMETER.* NZ X4,ERR IF CONVERSION ERROR ZR X6,ERR IF 0 YEAR SX2 10000 EQ B6,CAL1.2 IF GREGORIAN CALENDAR SX2 7000 IF JULIAN CALENDAR CAL1.2 SX4 X2 BX7 X6 IX2 X7/X2 IX2 X2*X4 IX6 X6-X2 YEAR MOD (10000 OR 7000) EQ CAL2.1 CONTINUE BELOW CAL2 SA0 B6 PDATE CALEND GET CURRENT DATE SB6 A0 MX4 -6 SA1 CALEND AX1 30 BX3 -X4*X1 SX6 X3+1970 CURRENT YEAR CAL2.1 EQ B6,CAL3 IF GREGORIAN CALENDAR * JULIAN. (X6) = YEAR IN [ 0 .. 6999 ]. SX3 28 SX4 X3 SX5 X6 SAVE YEAR IN X5 IX6 X6/X3 IX6 X6*X4 IX6 X5-X6 YEAR MOD 28 MX4 -2 BX4 -X4*X6 MOD 4 CX4 X4 CX4 X4 SA0 DPM+X4 SX4 X6+19 AX4 2 / 4 IX0 X6+X4 KYR EQ CAL6 CONTINUE TO TAKE MOD 7 * GREGORIAN. (X6) = YEAR IN [ 0 .. 9999 ]. CAL3 SA0 DPM+1 ASSUME NOT LEAP YEAR SX3 400 SX4 X3 SX5 X6 SAVE YEAR IN X5 IX6 X6/X3 IX6 X6*X4 IX6 X5-X6 YEAR MOD 400 (MYR) SX1 X6 SAVE MYR IN X1 AX6 2 MYR/4 SX3 100 SX4 X1 IX4 X4/X3 MYR/100 IX0 X1+X6 IX0 X0-X4 (KYR) = MYR + MYR/4 - MYR/100 SX6 X5 SX3 100 IX6 X6/X3 SX3 100 IX6 X6*X3 IX6 X5-X6 YEAR MOD 100 ZR X6,CAL4 IF / 100 CHECK ALSO IF / 400 MX7 -2 BX7 -X7*X5 YEAR MOD 4 ZR X7,CAL5 IF / 4 (LEAP YEAR) EQ CAL6 NOT LEAP CAL4 NZ X1,CAL6 IF NOT LEAP (NOT / 400) CAL5 SX0 X0+6 SA0 DPM LEAP YEAR * GREGORIAN OR JULIAN CALENDAR. CAL6 SX3 7 BX6 X0 IX6 X6/X3 SX3 X6 LX3 3 *8 IX6 X3-X6 *7 IX0 X0-X6 KYR MOD 7 (1ST JANUARY) SA1 CT+B6 BX6 X1 SA6 HDR1+2 SET CALENDAR TYPE SX1 X5+10000 ZERO PAD FROM LEFT MX5 24 PREPARE MASK LX5 -24 RJ CDD CONVERT YEAR TO DISPLAY CODE LX6 12 BX7 X5*X6 SA1 HDR1+4 BX6 -X5*X1 BX7 X6+X7 SA7 A1+ PUT YEAR IN HEADER RETURN F,R PROTECT ,ON REQUEST F,U,N WRITEW F,HDR1,HDR1L SA5 A0 GET DPM OR DPM+1 RJ W4M WRITEW F,HDR2,HDR2L RJ W4M WRITEW F,HDR3,HDR3L RJ W4M WRITER F,R MESSAGE HDR2,1,R ENDRUN ERR MESSAGE X1,3,R ABORT * EXTERNAL TEXT. COMCPL XTEXT COMCCDD COMCPL XTEXT COMCCIO COMCPL XTEXT COMCCPM COMCPL XTEXT COMCDXB COMCPL XTEXT COMCLFM COMCPL XTEXT COMCSYS COMCPL XTEXT COMCWTS COMCPL XTEXT COMCWTW BUFFERS SPACE 4,10 USE BUFFERS FBUF EQU * RFL= EQU FBUF+BUFL+10 LIST -R END References1. ^The source code is written by the author of this article in the year 1987. -- FedKad 06:26, 26 August 2005 (UTC) {{DEFAULTSORT:Compass Sample Code}} 2 : Assembly languages|CDC software |
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