RCA 301 Programmer's Reference Manual page 100

2 Card Punch Normal (CPN)
General Description
This instruction enables the Model 334 Card Punch to punch 80-column cards from information contained in
the HSM.
JFormat
Operation —2
N —Must be zero (0).
A Address — HSM address of first character to be punched.
B Address — HSM address of last character to be punched.
Direction of Operation
Left to right.
Outline of Operation
A start signal is sent to the Card Punch. The Card Punch punches the information from HSM between and
including the locations addressed by the contents of the A and B Registers, punching 80 columns to a card. When
the A and B Registers are equal, the last card is punched and the contents of the A Register are incremented by one.
The card punched is read concurrently with the punching of the succeeding card to insure the accuracy of
punching.
Final Register Contents
(A) = Address of location one to the right of the last character in HSM punched.
f
(B) =Bi
t
Timing
Cards are punched at the rate of 100 cards per minute.
Example
Instruction:
Operation
2
1000
C a r A
Final Register Contents:
(A) = 1160
f
(B)f = 1159
Time:
1.2 seconds
VIII-14
N
0
1079
#1
Punched
Card #2
Card #1
Standard Location
0202 - 0205
A Address
1000
1080
#2
B Address
1159
1159