Programming instructions

psf - 700201 - Skip if the Punch flag is a 1.

pcf - 700202 - Clear the Punch flag.

pls - 700206 - Load a character into PB hcom AC bits 10-17. Clear the Punch

flag. Punch the specified character.

700204 - C(PB) V C(AC)=> C(PB). Punch the C(PB).

0 2 4 8 8 lo 12

11.3

162

Fixed*

Ref.

I I

Flag 01

PLS Or

PCF

Load

Punch

Action

1 Buffer Must Be

Loaded By

This

Time to

AIIow

63.3

Char/&c Operation

*Determined By Punch

**PCF Flag Will Not Come On Until Next P Is Complete

Figure 22 - Perforated-Tape Punch timing

PROGRAM SEQUENCES

/punch the contents of AC and wait

Pls

/punches AC lo-17

Psf

/wait till done loop beginning

jmp.-1

/wait till done loop end

/wait for previous punching, then punch next

Psf

/wait loop for previous character punching

jmp.-1

/wait loop end

Pls

/punch the

character on tape

In the first sequence above, 11.3 milliseconds of program time is available

between the instruction following the wait loop and the next pls that can

be given. In the second sequence, 15.8 milliseconds or more program

time is available between the pls and the next time a pls can be given.