GE 235 System Manual page 70

T e s t and Branch Instructions
The following instructions t e s t to determine whether a magnetic tape controller condition i s t r u e
o r false. If the condition tested i s true, the computer executes the next sequential instruction.
If false, the computer executes the second sequential instruction. Under Index Word and the
Description, P stands f o r tape controller P .
Mnemonic Operand
Index Time
Oper. Code Address
Word Microsec.
-
Description
BCS BTR P 24-36 BRANCH ON TAPE CONTROLLER READY. P i s
tested f o r the ready status.
-
BCS BTN P 24-36 BRANCH ON TAPE CONTROLLER NOT READY. P i s
tested f o r the not-ready status.
BCS B E F P 24-36 BRANCH ON END-OF-FILE. P i s tested f o r end-of-
file indicator
ON.
BCS BNF P 24-36 BRANCH ON NO END-OF-FILE. P i s t e s t e d f o r end-
of-file indicator OFF.
-
BCS
BCS
BCS BER P 24-36 BRANCH ON ERROR. P i s tested f o r any e r r o r indi-
cator ON.
-
BCS BNE P 24-36 BRANCH ON NO ERROR. P i s tested f o r no e r r o r
indicator
-
ON.
BCS BIO P 24-36 BRANCH ON INPUT/OUTPUT ERROR. P i s tested
for input/output buffer e r r o r indicator ON.
-
BCS BIC P 24-36 BRANCH ON 1NPUT/OUTPUT BUFFER CORRECT. P
i s tested for input/output buffer e r r o r indicator OFF.
-
BCS BME P 24-36 BRANCH ON MOD 3 OR 4 ERROR. P i s tested f o r
modulo 3 o r 4 e r r o r indicator ON.
-
BCS BNM P 24-36 BRANCH ON NO MOD 3 OR 4 ERROR. P i s tested f o r
modulo 3 o r 4 e r r o r indicator OFF.
-
BCS BET P 24-36 BRANCH ON END-OF-TAPE. P i s tested f o r end-of-
tape i n d i c a t o r s This indicator i s t u r n e d x b y the
detection of a photo reflective spot located on tape just
p r i o r t o the trailer.
BNT P 24-36 BRANCH ON NO END-OF-TAPE. P i s t e s t e d f o r end-
of
-
tape indicator
=.
BPE P 24-36 BRANCH ON TAPE PARITY ERROR. P i s tested f o r
parity e r r o r indicator
ON.
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