Privileged Memory Reference Instructions; Immediate Instructions - HP 3000 III Series Manual

Machine Instructions and Stack Operations
SDEC field of the instr uction.
Instruction Commentary 4.
Move opcode: 5
Indicators: CCE if byte count
=
0
CCG if target byte
>
source byte (final)
CCL if target byte
<
source byte (final)
Addressing modes: Byte addressing
DB+ or PB+ for source
DB+ for targe t
Traps: STUN, STOV, BNDV, BNDV on P relative if user or privileged
~ 10. Privileged Memory Reference Instructions
LSEA Load Single Word From Extended Address
A bank address is in B and a 16-bit absolute address of a loca-
tion in that bank is in A. The word at that address is pushed
onto the s tac k.
Min i - cp code: 16, bit s 14, 15 = 0 0
Indica tors: CCA
Addressing mode: Absolute
Traps: STUN, STOV, MODE
This is a privileged instruction.
PLDA Pr iv ileged Load From Absolute Address
The content of the Index Register is a l6-bit absolute address in
bank 0: the content of this address is pushed onto the stack.
Mini-opcode: 15, bit 15
=
0
Indicators: CCA
Addressing mode: Absolute
Traps: STOV, MODE
This is a privileged instruction.
~ 11. .Immediate Instructions
ADDI Add Immed ia te
~
l
I
•
Immediate Operand
The immediate operand N is added to the TOS in integer form, and
the sum replaces the
'IDs.
The value of N is given in the argu-
ment field of the instruction, and is expressed as a positive
integer in the range
0
through 255.
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