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SUBROUTINE QPARAM
C
C PARAM PERFORMS THE FOLLOWING OPERATIONS ON PARAMETERS--
C 1. OUT = IN1 .AND. IN2
C 2. OUT = IN1 .OR . IN2
C 3. OUT = IN1 + IN2
C 4. OUT = IN1 - IN2
C 5. OUT = IN1 * IN2
C 6. OUT = IN1 / IN2
C 7. OUT = .NOT. IN1
C 8. OUT = IN1 .IMP. IN2
C 9. STORE VALUE OF OUT IN VPS.
C 10. OUT = VALUE OF PRECISION CELL FROM /SYSTEM/
C 11. OUT = CURRENT TIME
C 12. OUT = TIME TO GO
C 13. OUT = SYSTEM(IN1) = IN2
C 14. OUT = SYSTEM(25) WITH BITS IN1 THRU IN2 TURNED ON OR OFF.
C 15. OUT = SYSTEM CELL IN1.
C 16. SAVE AND RESTORES SENSE SWITCHES
C 17. SETS SENSE SWITCHES
C 18. SAVE AND RESTORES SYSTEM CELLS
C 19. OUT = -1 IF IN1 .EQ. IN2, OUT = +1 OTHERWISE.
C 20. OUT = -1 IF IN1 .GT. IN2, OUT = +1 OTHERWISE.
C 21. OUT = -1 IF IN1 .LT. IN2, OUT = +1 OTHERWISE.
C 22. OUT = -1 IF IN1 .LE. IN2, OUT = +1 OTHERWISE.
C 23. OUT = -1 IF IN1 .GE. IN2, OUT = +1 OTHERWISE.
C 24. OUT = -1 IF IN1 .NE. IN2, OUT = +1 OTHERWISE.
C 25. UNDEFINED.
C 26. UNDEFINED.
C 27. UNDEFINED.
C 28. UNDEFINED.
C 29. UNDEFINED.
C 30. UNDEFINED.
C
EXTERNAL LSHIFT,ORF,ANDF
INTEGER SWITCH,OFF,ORF,XORF,OP,OPCODE,OUT,OUTTAP,ANDF,VPS,
1 OSCAR
DIMENSION OPCODE(30),SWITCH(2)
CHARACTER UFM*23,UWM*25
COMMON /XMSSG / UFM,UWM
COMMON /BLANK / OP(2),OUT,IN1,IN2
COMMON /SYSTEM/ KSYSTM(80)
COMMON /OSCENT/ OSCAR(16)
COMMON /XVPS / VPS(1)
EQUIVALENCE (KSYSTM( 2),OUTTAP),(KSYSTM(23),LSYSTM),
1 (KSYSTM(55),IPREC ),(KSYSTM(79),SWITCH(1))
DATA OPCODE/ 4HAND ,4HOR ,4HADD ,4HSUB ,4HMPY
1 , 4HDIV ,4HNOT ,4HIMPL,4HNOP ,4HPREC
2 , 4HKLOC,4HTMTO,4HSYST,4HDIAG,4HSYSR
3 , 4HSSSR,4HSSST,4HSTSR,4HEQ ,4HGT
4 , 4HLT ,4HLE ,4HGE ,4HNE ,4H****
5 , 4H****,4H****,4H****,4H****,4H****
Z /
DATA OFF / 4HOFF /
C
C BRANCH ON OPERATION CODE.
C
DO 5 I = 1,30
IF (OP(1) .EQ. OPCODE(I)) GO TO (
1 10, 20, 30, 40, 50, 60, 70, 80, 90,100,
2 110,120,130,140,150,160,170,180,190,200,
3 210,220,230,240,250,260,270,280,290,300), I
5 CONTINUE
GO TO 990
C
C .AND.
C
10 OUT = -1
IF (IN1.GE.0 .OR. IN2.GE.0) OUT = +1
GO TO 900
C
C .OR.
C
20 OUT = +1
IF (IN1.LT.0 .OR . IN2.LT.0) OUT = -1
GO TO 900
C
C ADD
C
30 OUT = IN1 + IN2
GO TO 900
C
C SUB
C
40 OUT = IN1 - IN2
GO TO 900
C
C MPY
C
50 OUT = IN1*IN2
GO TO 900
C
C DIV
C
60 OUT = IN1/IN2
GO TO 900
C
C NOT
C
70 OUT = -IN1
GO TO 900
C
C IMPLY
C
80 OUT = +1
IF (IN1.GE.0 .OR. IN2.LT.0) OUT = -1
GO TO 900
C
C NOP
C
90 GO TO 900
C
C PROVIDE PRECISION FROM /SYSTEM/.
C
100 OUT = IPREC
GO TO 900
C
C PROVIDE CURRENT TIME
C
110 CALL KLOCK (OUT)
GO TO 900
C
C PROVIDE TIME-TO-GO
C
120 CALL TMTOGO (OUT)
GO TO 900
C
C MODIFY SYSTEM CELL.
C
130 OUT = IN2
KSYSTM(IN1) = IN2
IF (IN1.LE.0 .OR. IN1.GT.LSYSTM) WRITE (OUTTAP,135) UWM,IN1
135 FORMAT (A25,' 2317, PARAM HAS STORED OUTSIDE DEFINED RANGE OF ',
1 'COMMON BLOCK /SYSTEM/.', /32X,'INDEX VALUE =',I20)
GO TO 900
C
C TURN DIAG SWITCH ON OR OFF.
C
140 IF (IN2 .LT. IN1) IN2 = IN1
DO 145 I = IN1,IN2
IF (I .GT. 31) GO TO 142
OUT = LSHIFT(1,I-1)
SWITCH(1) = ORF(SWITCH(1),OUT)
IF (OP(2) .EQ. OFF) SWITCH(1) = SWITCH(1) - OUT
GO TO 145
142 OUT = I - 31
OUT = LSHIFT(1,OUT-1)
SWITCH(2) = ORF(SWITCH(2),OUT)
IF (OP(2) .EQ. OFF) SWITCH(2) = SWITCH(2) - OUT
OUT = OUT + 31
145 CONTINUE
OUT = SWITCH(1)
IF (I .GT. 31) OUT = SWITCH(2)
GO TO 900
C
C RETURN VALUE OF IN1-TH WORD OF /SYSTEM/.
C
150 OUT = KSYSTM(IN1)
GO TO 900
C
C SAVE OR RESTORE SSWITCH WORD
C
160 IF (IN1 .LT. 0) GO TO 165
IF (IN1 .GT. 31) GO TO 161
OUT = SWITCH(1)
GO TO 900
161 CONTINUE
OUT = SWITCH(2)
GO TO 900
165 IF (IABS(IN1) .GT. 31) GO TO 166
SWITCH(1) = OUT
GO TO 900
166 SWITCH(2) = OUT
GO TO 900
C
C TURN SSWITCH ON OR OFF
C
170 IF (OUT .EQ. 0) GO TO 900
IF (OUT .GT. 0) GO TO 175
IF (IABS(OUT) .GT. 31) GO TO 171
MASK = LSHIFT(1,IABS(OUT)-1)
SWITCH(1) = XORF(MASK,ORF(MASK,SWITCH(1)))
GO TO 900
171 CONTINUE
OUT = OUT + 31
MASK = LSHIFT(1,IABS(OUT)-1)
SWITCH(2) = XORF(MASK,ORF(MASK,SWITCH(2)))
OUT = OUT - 31
GO TO 900
175 CONTINUE
IF (OUT .GT. 31) GO TO 176
SWITCH(1) = ORF(LSHIFT(1,OUT-1),SWITCH(1))
GO TO 900
176 CONTINUE
OUT = OUT - 31
SWITCH(2) = ORF(LSHIFT(1,OUT-1),SWITCH(2))
OUT = OUT + 31
GO TO 900
C
C SAVE OR RESTORE A CELL OF SYSTEM
C
C SAVE
C
180 CONTINUE
IF (IN1 .LT. 0) GO TO 185
OUT = KSYSTM(IN1)
GO TO 900
C
C RESTORE
C
185 IN1 = IABS(IN1)
KSYSTM(IN1) = OUT
GO TO 900
C
C ARITHMETIC RELATIONAL OPERATORS.
C
190 IF (IN1-IN2) 191,192,191
191 OUT = +1
GO TO 900
192 OUT = -1
GO TO 900
200 IF (IN1-IN2) 191,191,192
210 IF (IN1-IN2) 192,191,191
220 IF (IN1-IN2) 192,192,191
230 IF (IN1-IN2) 191,192,192
240 IF (IN1-IN2) 192,191,192
C
C UNDEFINED.
C
250 GO TO 900
C
C UNDEFINED.
C
260 GO TO 900
C
C UNDEFINED.
C
270 GO TO 900
C
C UNDEFINED.
C
280 GO TO 900
C
C UNDEFINED.
C
290 GO TO 900
C
C UNDEFINED.
C
300 GO TO 900
C
C SAVE OUT IN THE VPS.
C
900 I = ANDF(OSCAR(16),65535)
VPS(I) = OUT
RETURN
C
C OPERATION CODE NOT DEFINED-- WRITE MESSAGE.
C
990 WRITE (OUTTAP,998) UFM,OP(1),OP(2)
998 FORMAT (A23,' 2024, OPERATION CODE ',2A4,' NOT DEFINED FOR ',
1 'MODULE PARAM.')
CALL MESAGE (-61,0,0)
RETURN
END
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