RCA Spectra 70 - Page 242

Test Under Mask 91
TM
SI 1. Address Error.
o - Selected bits all zero, or
mask all zero.
1 - Selected bits mixed zero
and one.
2- Not used.
3 - Selected
bits all one.
Translate
DC TR
SS
1. Address Error.
Unchanged.
Translate and Test DD
TRT
SS 1. Address Error.
o - All accessed func,tion bytes
all zeros.
1 - Non-zero
function byte
encountered.
2 - Last function byte ncm-zero.
3-Not used.
Test and Set
93 TS
SI 1. Machine check.
o - Leftmost bit of byte
2. Addressing.
specified
is zero.
3.
Power failure.
1 - Leftmost bit of byte
specified is one.
Branching Instructions
45 BAL RX None.
Branch and Link
Unchanged.
05
BALR RR
47
BIC
RX None.
Branch on
Condition
Unchanged.
07 BCR RR
46 BCT
RX
None.
Branch on Count
Unchanged.
06
BGTR
RR
Branch on 86
BXH
RS
None. Unchanged.
Index High
Legend:
B - total number of bytes processed. This condition occurs if instruction terminates
before L count is exhausted.
6.48
9.84
+ 5.04L
14.64 + 4.08B
6.96
5.52
Branch = 4.80
No Branch = 3.84
Branch = 4.56·
No Branch = 4.56
Branch = 3.84
No
Branch = 3.36
Branch = 7.92
No Branch = 6.96
Branch = 5.76
No Branch = 5.28
Branch = 11.60
No Branch = 11.12
L -
total number of bytes specified by L field.
N -
number of bits shifted.