Table 2-4. Special Instruction Set - Honeywell 6000 Series Reference Manual

Table
2 -4.
Special Instruction Set
INSTRUCTIONS
Write Control Main Memory (BIN)a
Write Control Main Memory (ASCn)a
Conditional Write Lock By tea
Write Lock
~ytea
Read Contro
L
Main Memory (BIN)a
Read Control Main Memory (ASCII)a
Read Lock By tea
Initiate \Vrite Data
Transfe~
Initiate Read Data Transfer a
Suspend Control a
Release Control a
Send Special
Interrup~
Read Logical Channel Number a
BINARY CODE
011010
001010
011100
001100
010010
000010
000100
001110
000110
000000
010000
001000
011000
a
:0"laster Mode Instructions only; restricted to privileged users.
SPECL\L SEEK
This instruction is used for
T
&
D. It is identical to the Seek instruction except that
the
s
ector address nlust refe rence a sector on cylinder 410.
PRESI EK
Th;s !(13truction is like a Seek instruction except that it may not be followed by a
data tr::1nsfer instruction.
RE~; ( RE
' " i h!.8 instruction reestablishes the seek reference point by returning the read/write
heads )f the selected
Dsn
t.o
cylinder zero.
READ
This ins 1"l1(.'tion
acce~
ses r!ata stored in the DSU and transfers it to the EUS.
L{
~:!.n ASCII
This instruction is the sarTle as the Read instruction except that it indicates the
American
~:tandard
Code for In_'c ("!Lation Interchange (ASCII) mode.
'VRITE
This instruction transfers data from the EUS to the DSU for storage on the disk pack.
2 -13
DB37