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prs.mac
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UNIVER PRS
SUBTTL GENERAL DEFINITIONS
PASS2
;AC NAMING AND USAGE CONVENTIONS:
;NO ROUTINE IS EXPECTED TO PRESERVE T1-T4.
;THEY ARE INTENDED AS TEMPORARY SCRATCH SPACE ONLY.
;T1-T4 ARE GUARANTEED TO BE CONSECUTIVE AC'S IN THAT ORDER.
;ALL ROUTINES ARE EXPECTED TO PRESERVE P1-P4.
;P1-P4 ARE GUARANTEED TO BE CONSECUTIVE AC'S IN THAT ORDER.
;C CONTAINS THE NEXT CHARACTER FOR I/O.
;ROUTINES THAT PARSE INPUT WILL LEAVE C WITH THE FIRST
;CHARACTER FOR THE NEXT ROUTINE.
;P IS THE STACK POINTER.
T1=1 ;TEMPS
T2=T1+1
T3=T2+1
T4=T3+1
P1=5 ;PRESERVED AC'S
P2=P1+1
P3=P2+1
P4=P3+1
C=11 ;CHAR
P=17 ;PDL
;ASSEMBLY PARAMETERS
IFNDEF SFDS,<SFDS==5> ;NUMBER OF SFDS TO SUPPORT
IFNDEF FOOSIZ,<FOOSIZ==25> ;SIZE SCR SPACE
;OP-CODES
OPDEF PJRST[JRST] ;POPPING JRST
SUBTTL FORMAT OF FILE SPC BLOCK
PHASE 0
.SBSIZ:! ;LH=SIZE OF BLK (INCLUSIVE)
.SBNXT:! BLOCK 1 ;RH=ADR NEXT BLK OR 0
.SBDEV:! BLOCK 1 ;DEVICE
.SMDEV:! BLOCK 1 ;DEVICE MASK
.SBPPN:! BLOCK SFDS+1 ;PPN&SFDS
IFN SFDS,<BLOCK 1> ;ZERO
.SMPPN:! BLOCK SFDS+1 ;PPN&SFDS MASKS
.SBNAM:! BLOCK 1 ;FILENAME
.SMNAM:! BLOCK 1 ;FILENAME MASK
.SBEXT:! ;LH=EXTENSION
.SMEXT:! BLOCK 1 ;RH=EXTENSION MASK
.SBMOD:! BLOCK 1 ;MODE
;PUT NEW WORDS ABOVE HERE
SPCSIZ:! ;SIZE OF A SPC BLK
DEPHAS
SUBTTL ERROR MESSAGES
ER.EAT==1B0 ;EAT TYPE AHEAD
DEFINE VB(AA,BB,CC,DD),<
AA+BB
SIXBIT /CC/
ASCIZ /DD/
>
DEFINE VRB(AA,BB,CC,DD),<
MOVEI T1,[VB AA,BB,CC,<DD>]
>
DEFINE VERB(AA,BB,CC,DD),<
VRB AA,BB,CC,<DD>
PUSHJ P,VERBO##
>
DEFINE ERR(AA,BB,CC,DD),<
VRB AA,BB,CC,<DD>
JRST VERBO##
>
DEFINE WARN(CC,DD),<
PUSHJ P,[ERR 0,"%",CC,<DD>]
>
DEFINE FATAL(CC,DD),<
JRST [ERR ER.EAT,"?",CC,<DD>]
>
END