Intel 8XC196K Series User Manual page 463

8XC196K x , J x , CA USER'S MANUAL
Mnemonic
LDBSE LOAD BYTE SIGN-EXTENDED. Sign-
extends the value of the source short-
integer operand and loads it into the
destination integer operand.
(low byte DEST)
if DEST.15 = 1 then
(high word DEST)
else
(high word DEST)
end_if
Z
—
LDBZE LOAD BYTE ZERO-EXTENDED. Zero-
extends the value of the source byte operand
and loads it into the destination word
operand.
(low byte DEST)
(high byte DEST)
Z
—
LJMP LONG JUMP. Adds to the program counter
the offset between the end of this instruction
and the target label, effecting the jump. The
offset must be in the range of –32,768 to
+32,767.
←
PC PC + 16-bit disp
Z
—
MUL MULTIPLY INTEGERS. Multiplies the source
(2 operands) and destination integer operands, using
signed arithmetic, and stores the 32-bit result
into the destination long-integer operand.
The sticky bit flag is undefined after the
instruction is executed.
←
(DEST)
Z
—
A-24
Table A-6. Instruction Set (Continued)
Operation
←
(SRC)
←
0FFH
←
0
PSW Flag Settings
N C V VT ST
— — — — —
←
(SRC)
←
0
PSW Flag Settings
N C V VT ST
— — — — —
PSW Flag Settings
N C V VT ST
— — — — ?
(DEST) × (SRC)
PSW Flag Settings
N C V VT ST
— — — — ?
Instruction Format
DEST, SRC
LDBSE wreg, baop
(101111aa) (baop) (wreg)
DEST, SRC
LDBZE wreg, baop
(101011aa) (baop) (wreg)
LJMP cadd
(11100111) (disp-low) (disp-high)
DEST, SRC
MUL lreg, waop
(11111110) (011011aa) (waop) (lreg)