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PDP-10 Archives
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forchr.c19
There are 9 other files named forchr.c19 in the archive. Click here to see a list.
REP 3/1 ;19C1
TV FORCHR Character routines, 10(4106)
SUBTTL BL/AHM/TFV/CKS/RVM/PLB/TJK/CDM/MRB 2-Feb-84
WIT
TV FORCHR Character routines, 11(5036)
SUBTTL BL/AHM/TFV/CKS/RVM/PLB/TJK/CDM/MRB/RLF 6-Oct-87
REP 1/45 ;19C2
TITLE SAVAC%-RESAC% Save and restore registers routine
SEARCH MTHPRM,FORPRM
FSRCH
SEGMENT CODE
ENTRY SAVAC%, RESAC%
WIT
TITLE CHRSTK - Character stack routines
DEL 15/45 ;19C3
; SAVAC% is used in conjunction with RESAC%. SAVAC% should be the
; first stack operation performed by the string sub-routine.
; SAVAC% saves registers 2-15 on the stack, beginning at the
; location pointed to by the stack- pointer. SAVAC% returns with
; all registers intact except T1 & P.
;
; Upon completion of string operation, a PJRST to RESAC% restores
; registers 2-15 and POPJ's to next higher-level caller.
FIRST==2 ;[3242] First AC to save
LAST==15 ;[3242] Last AC to save
SAVAC%: MOVEM LAST,ACS+LAST ;[3242] Save LAST
MOVE LAST,[FIRST,,ACS+FIRST] ;[3242] Point to the start of the block
BLT LAST,ACS+LAST-1 ;[3242] Save FIRST:LAST-1
POPJ P, ;[3242] Return to library routine
RESAC%: MOVS LAST,[FIRST,,ACS+FIRST] ;[3242] Point to the AC save block
BLT LAST,LAST ;[3242] Restore FIRST:LAST
GOODBYE ;Return to user routine
SEGMENT DATA
ACS==.-FIRST
BLOCK LAST-FIRST+1 ;[3242] Place to save the ACs
SEGMENT CODE
PRGEND
TITLE CHRSTK - Character stack routines
;THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY ONLY BE USED
; OR COPIED IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE.
;COPYRIGHT (c) DIGITAL EQUIPMENT CORPORATION 1981, 1987
;ALL RIGHTS RESERVED.
INS 88/56 ;19C4
PRGEND ;[5036]
;[5036] This routine is moved down here so none of the above
;[5036] routines that calls SAVAC% or RESAC% will get undefined
;[5036] global symbols
TITLE SAVAC%-RESAC% Save and restore registers routine
SEARCH MTHPRM,FORPRM
FSRCH
SEGMENT CODE
ENTRY SAVAC%, RESAC%
;THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY ONLY BE USED
; OR COPIED IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE.
;COPYRIGHT (c) DIGITAL EQUIPMENT CORPORATION 1981, 1987
;ALL RIGHTS RESERVED.
; SAVAC% is used in conjunction with RESAC%. SAVAC% should be the
; first stack operation performed by the string sub-routine.
; SAVAC% saves registers 2-15 on the stack, beginning at the
; location pointed to by the stack- pointer. SAVAC% returns with
; all registers intact except T1 & P.
;
; Upon completion of string operation, a PJRST to RESAC% restores
; registers 2-15 and POPJ's to next higher-level caller.
FIRST==2 ;[3242] First AC to save
LAST==15 ;[3242] Last AC to save
SAVAC%: MOVEM LAST,ACS+LAST ;[3242] Save LAST
MOVE LAST,[FIRST,,ACS+FIRST] ;[3242] Point to the start of the block
BLT LAST,ACS+LAST-1 ;[3242] Save FIRST:LAST-1
POPJ P, ;[3242] Return to library routine
RESAC%: MOVS LAST,[FIRST,,ACS+FIRST] ;[3242] Point to the AC save block
BLT LAST,LAST ;[3242] Restore FIRST:LAST
GOODBYE ;Return to user routine
SEGMENT DATA
ACS==.-FIRST
BLOCK LAST-FIRST+1 ;[3242] Place to save the ACs
;[5036] PRGEND removed
SUM 46361