Programming instructions

MNEMONIC OCTAL
EVENT
SYMBOL CODE
TIME
OPERATION
ral
rtl
740010 3
Rotate AC Left. The C(AC) and the C(L) are
rotated left one place.
C(ACJ => C(AC j-~)
C(AC,) => C(L). C(L) => C(AG7)
742010 2, 3
Rotate Two places Left. Equivalent to two
successive ral’s.
rar
740020 3
Rotate AC Right. The C(AC) and the C(L) are
rotated one place right.
C(ACj) => C(ACj-1)
C(L) => C(ACo)
C(AC17) =>C(L)
rtr 742020 2, 3
Rotate Two Places Right. Action taken is
equivalent to two successive rar’s.
oas 740004 3
OR AC Switches. The Inclusive OR of the
C(AC) and the C(AC switches) is placed in the
AC. A switch up is interpreted as a 1.
C(AC Switches) V C(AC) => C(AC).
Example
Cr / C(AC[ final C(AC) jrnal 1
sma
740100 1
Skip if Minus AC. If the AC is negative, the
next instruction is skipped.
If AC0 = 1, then C(PC) + 1 => C(PC).
spa
741100 1 Skip if Plus AC. If the AC is positive, the next
instruction is skipped.
If AC0 = 0, then C(PC) + 1 => C(PC).
sza 740200 1
Skip if Zero AC. If C(AC) are 0, the next in-
struction is skipped.
If C(AC) = 0, then C(PC) + 1 => C(PC).
sna 741200 1
Skip if Non-zero AC.
If C(AC) # 0, then C(PC) + 1 => C(PC>.
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