GE 235 System Manual page 37

FOR THE PURPOSES O F THIS MANUAL, THE DESCRIPTION O F EACH INSTRUCTION 1s
NECESSARILY ABBREVIATED. COMPLETE EXPLANATIONS WITH EXAMPLES MAY BE
FOUND IN THE GE-235 PROGRAMMING REFERENCE MANUAL.
Data Transfer
Mnemonic
Operand Index Time
Oper. Code Address Word Microsec. Description
LDA Y X 12 LOAD A register with the contents of
Y.
DLD
Y X 18 DOUBLE LENGTH LOAD r e g i s t e r s A and Q with the
contents of Y and Y+1.
STA Y
X
12 STORE A register contents into memory location Y.
DST
Y
X 18 DOUBLE LENGTH STORE contents of r e g i s t e r s A
and Q into Y and Y+1.
MOV Y 24+12N MOVE a block of N words starting a t memory lo-
cation Y into another a r e a of memory. Register A
contains starting address of new a r e a ; register Q
contains number of words to be moved (in 2's com-
plement form). This instruction i s an optional
feature.
S T 0
ORY
EXT
LD Z
LDO
18 STORE OPERAND ADDRESS field of register A in
the operand address field of Y.
18 OR A INTO Y byplacing a 1 bit in Y wherever register
A has a 1 bit in the corresponding position.
18 EXTRACT into A by placing a 0 bit in register A
wherever Y has a 1 bit in the corresponding position.
18 LOAD A FROM Q by transferring the contents of
register Q into A.
18 LOAD Q FROM A by transferring the contents of
register A into Q.
18 MOVE A TO
Q
and replace the contents of A with
zeros.
18
EXCHANGE A AND Q by interchanging the contents
of r e g i s t e r s A and Q.
18 LOAD ZERO into all bit positions of register A.
18 LOAD ONE bit into 19th bit position of register A and
s e t the other bit positions to 0.
IV- 12