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PDP-10 Archives
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bb-kl11i-bm_tops20_v7_0_atpch_1-22
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autopatch/mscgen.c11
There are 2 other files named mscgen.c11 in the archive. Click here to see a list.
REP 28/1 ;11C1
WIT
;JEH 22-MAR-85 [1563] Fix 'set condition-name' code.
REP 21/47 ;11C2
PUSH PP,1(TC) ;SAVE ORIGINAL CONTAB ENTRY
HRRM TA,1(TC) ;FAKE OPERAND TO POINT TO DATAB
MOVEI LN,EBASEB ;SET IT UP AS "B" OPERAND
PUSHJ PP,SETOPN
MOVE TC,CUREOP ;RESTORE TC
POP PP,1(TC) ;PUT CONTAB LINK BACK
WIT
;movgen expects entries for at least two operands on eop stack.
;Phase D has made one entry for the condition-name. This has
;to be moved down in eoptab so the source operand can be build first,
;and it has to be modified to be a datab operand, not a contab operand.
;First, compute the size of the contab operand and move it.
MOVE TE,1(TC) ;[1564] GET SECOND WORD OF OPERAND
LDB TE,TESUBC ;[1564] GET NUMBER OF SUBSCRIPTS
IMULI TE,2 ;[1564] TIMES 2 WORDS PER SUB
ADDI TE,2 ;[1564] PLUS 2 WORDS FOR THE OPERAND
MOVE TA,EOPNXT ;[1564] END OF CURRENT EOP STACK
MOVE TB,TA ;[1564]
ADD TB,[2,,2] ;[1564] NEW END OF EOP STACK
MOVEM TB,EOPNXT ;[1564]
MOVEM TB,EACA ;[1564]
SETCD5:
POP TA,TC ;[1564] POP OFF CONTAB ENTRY
MOVEM TC,(TB) ;[1564] PLACE IT TWO WORDS LOWER
SOS TB ;[1564]
SOJG TE,SETCD5 ;[1564]
;Build dummy operand on eop stack for the source in the move, which is the
;literal stored in %PARAM equal to the 88 level value.
;
;operand word one = %param entry for condition-name value
SETCD6: MOVE TB,CUREOP ;[1564] STILL POINTS TO CONDITION-NAME
HRRZ TA,1(TB) ;[1564] GET THE CONTAB LINK
MOVEM TA,CURCON ;[1564] SAVE IT
PUSHJ PP,LNKSET ;[1564] ABSOLUTIZE IT
LDB TD,CO.FIG ;[1564] IS VALUE A FIGURATIVE CONSTANT?
JUMPN TD,SETCD7 ;[1564] YES
LDB TD,CO.TAG ;[1564] GET THE %PARAM TAG
IORI TD,AS.TAG ;[1564] MARK IT AS A TAG
HRLI TD,22000 ;[1564] SET 'IN PARAM' (GNPAR) AND GNNOTD
MOVEM TD,(TB) ;[1564]
;operand word two = size, mode, nbr of decimal places, and 'not-datab' flag
MOVSI TD,GNOPNM ;[1564]
LDB TA,CO.DAT ;[1564]
MOVEM TA,CURDAT ;[1564]
PUSHJ PP,LNKSET ;[1564]
LDB TC,DA.USG ;[1564] GET DESTINATION USAGE
DPB TC,[POINT 4,TD,13] ;[1564]
LDB TC,DA.INS ;[1564] GET DESTINATION SIZE
DPB TC,ACSIZE## ;[1564]
LDB TC,DA.NDP## ;[1564] GET DESTINATION DEC. PLACES
HRR TD,TC ;[1564]
TLO TD,GNNOTD ;[1564] SET NOT DATAB FLAG
MOVEM TD,1(TB) ;[1564] OVERWRITE WORD 2 OF OPERAND
JRST SETCD8 ;[1564] NOW FIX UP DESTINATION EOP ENTRY
;[1564] source is a figurative constant
FIGVAL: HRLZI TE,GNFCLV ;[1564] SET BIT FOR LOW-VALUES,
HRLZI TE,GNFCHV ;[1564] HIGH-VALUES,
HRLZI TE,GNFCQ ;[1564] QUOTES,
HRLZI TE,GNFCZ ;[1564] ZEROS,
HRLZI TE,GNFCS ;[1564] SPACES
FIGTYP: POINT 5,2(TA),7 ;[1564]
SETCD7: LDB TC,CO.DAT ;[1564] GET DATAB LINK
MOVEM TC,CURDAT ;[1564] AND SAVE IT
SETZ TC, ;[1564]
TLO TC,400000 ;[1564] SET OPERAND BIT
TLO TC,GNLIT!GNFIGC ;[1564] SET LITERAL!FIGURATIVE CONSTANT BITS
LDB TD,FIGTYP ;[1564] GET TYPE OF FIGURATIVE CONSTANT
SOSL TD ;[1564]
XCT FIGVAL(TD) ;[1564] SET FLAG IN TE
IOR TC,TE ;[1564] MAP IT INTO TC
LDB TD,CO.ALL## ;[1564] IS 'ALL' SET?
SKIPE TD ;[1564]
TLO TC,GNALL ;[1564] YES
MOVEM TC,(TB) ;[1564] FIRST WORD OF OPERAND
SETZM 1(TB) ;[1564] SECOND WORD OF OPERAND
;[1564] now fix up eop entry for destination
SETCD8: MOVE TC,CUREOP ;[1564]
ADDI TC,2 ;[1564]
MOVEM TC,CUREOP ;[1564] NOW POINTS TO NEW OPERAND
MOVE TD,(TC) ;[1564] WORD 1 OF OPERAND
MOVE TA,CURDAT ;[1564]
HRRM TA,1(TC) ;[1564] REPLACE CONTAB WITH DATAB LINK
PUSHJ PP,LNKSET ;[1564]
LDB TB,DA.LKS## ;[1564] IS IT IN THE LINKAGE SECTION?
SKIPE TB ;[1564]
TLO TD,(LKSFLG) ;[1564] YES, SET FLAG
LDB TB,DA.USG ;[1564] GET THE USAGE MODE
DPB TB,[POINT 4,TD,13] ;[1564]
MOVEM TD,(TC) ;[1564]
MOVEI LN,EBASEB ;SET IT UP AS "B" OPERAND
PUSHJ PP,SETOPN
REP 32/47 ;11C3
HRRZ TA,1(TC) ;POINT TO CONTAB LINK
WIT
MOVE TA,CURCON ;[1564] point to contab link
REP 45/47 ;11C4
PUSHJ PP,MXX.## ;DO THE MOVE
SETCD2: PUSHJ PP,BMPEOP ;STEP UP TO NEXT ONE
POPJ PP, ;NO MORE
MOVE TC,CUREOP
JRST SETCD1 ;YES, GO PROCESS IT
WIT
HRRZ TA,EOPLOC ;[1564] GET A-OP ADDRESS
AOS TA ;[1564]
HRL TA,CUREOP ;[1564] GET B-OP ADDRESS
MOVSM TA,OPERND ;[1564] STORE IN OPERND FOR MOVGEN AND SUBSCR
PUSHJ PP,MXX.## ;DO THE MOVE
;Always only one operand, if more in the source statement, each
;will be followed by its own operator
SETCD2: POPJ PP, ;[1564] DONE
;[1564]SETCD2: PUSHJ PP,BMPEOP ;STEP UP TO NEXT ONE
;[1564] POPJ PP, ;NO MORE
;[1564] MOVE TC,CUREOP
;[1564] JRST SETCD1 ;YES, GO PROCESS IT
SUM 67589