Computer Hardware User's Guide

BcondD Branch Conditionally (Delayed)
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Example BNZD 36 (36 = 24h)
Before Instruction After Instruction
PC 0050 PC 0077
LUF 0 LUF 0
LV 0 LV 0
UF 0 UF 0
N 0 N 0
Z 0 Z 0
V 0 V 0
C 0 C 0
Note:
Delayed branches disable interrupts until the completion of the three instruc-
tions that follow the delayed branch, regardless if the branch is or is not per-
formed. The following instructions cannot be used in the next three instruc-
tions following a delayed branch: B
cond , B cond D, BR, BRD, CALL, CALL-
cond , DB cond , DB cond D, IDLE, IDLE2, RETI cond , RETS cond , RPTB,
RPTS, TRAP cond .