80-Bus News

  

January–March 1982, Volume 1, Issue 1











Page 23 of 55











1080

1082 1084 1087 1089 iosa 1086 10eac i0e8p LOGE 1090

LG?1 1095 1098 1099 L064

LOS8 1o9D LO’F LGAL

1043 LOAG LOA LOAA 10AC LOQAE LOEO

LOBEL LOE3 LOEBS 1087

LOE9 LOEC LOBED LOBE LOEF 1ecea 1602 10cs

DF SE

DF 44 SAZ10C ED79 oc

OF

OF

OF

OF ED?? Cc?

ED73E610 SLFC1O FS

CS

ES

QEZF ED? ED7S8 ED?®

21ED0E gE27 D727 D725 D723 3420

23

JEZ9 D710 GE2Z

D718

SAES10 OF

OF

aF

OF D71iC SAESLO D717

O990 1000

1026 1030 1040 1050 1040 1070 1080 1096 1100 1110 1120

L1iS0

Liva 1180 Ligo 1200 L210 1220 1230 1240 1250 1260

1270

L290 13600 L318 1320 Laac

wed tad &,

L340 1350 1340

L380 L3c9 1406 L410 L420

1440 L450 L480 L470 1480 L490 Ls00 iS10

1520

23

;Returnm to NAS-SYS 3

SCAL

Subroutine

LOAD SCAL LD QUT INC RECA RECA RECA RRCA OUT RET

MRET

LOAD

NUM

A cNUMY) (Cy) A

Fad Le

(0) A

+; INTERRUPT ROUTINE

}Save stack

INTE LD LD BUSH PUSH FUSH

pointer and registers (SPSTR) SF

SFO STACKS 20

AF

BC

HI.

rReset interrupt and restart timer

LG TN IN IN

C CLOCK+OF HG Interrupt register ® c€C) A €C) A cC)

;Oisplay hours, minutes and seconds

LG LD ROAL BCA ROAL LD INC

Display dd LD RCAL LD RCAL

Display yy LD RROA RRCA RECA RECA RCAL Lo RCAL

HL CRT

® CLOCK+?% 3 Tens of hours register DISe

DIS

DISF

CHL) SPACE

HL

and mm

C CLOCK+9iTens of days registe DISF

C CLOCK+0CH; Tens of months OISF :

fi CYEAR)

ASCII

A CYEAR) ASCT


This is an OCR’d version of the scanned page and likely contains recognition errors.











Page 23 of 55