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PAC
Load Accumulator With Product Register
7-134
Syntax PAC
Operands None
Opcode
0123456789101112131415
1100000001111101
Execution Increment PC, then ...
shifted (PREG) ACC
Status Bits
Affected by
PM
Description The content of PREG, shifted as specified by the PM status bits, is loaded into
the accumulator.
Words 1
Cycles for a Single PAC Instruction
ROM DARAM SARAM External
1 1 1 1+p
Cycles for a Repeat (RPT) Execution of a PAC Instruction
ROM
DARAM SARAM External
n n n n+p
Example PAC ;(PM = 0: no shift of product)
Before Instruction After Instruction
PREG 144h PREG 144h
ACC X 23h ACC X 144h
CC
Cycles