ST10 FAMILY PROGRAMMING MANUAL
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BFLDL
Bit Field Low Byte
Syntax
BFLDL
op1, op2, op3
Operation
(tmp) <--
(op1)
(low byte (tmp))
<-- ((low byte (tmp) ^ ¬op2) v op3)
(op1) <--
(tmp)
Data Types
WORD
Description
Replaces those bits in the low byte of the destination word operand op1 which are selected by an ’1’ in the
AND mask op2 with the bits at the corresponding positions in the OR mask specified by op3.
Note: Bits which are masked off by a ’0’ in the AND mask op2 may be unintentionally altered if the corre-
sponding bit in the OR mask op3 contains a ’1’.
Flags
Addressing Modes
E
Z
V
C
N
0
*
0
0
*
E
Always cleared.
Z
Set if the word result equals zero. Cleared otherwise.
V
Always cleared.
C
Always cleared.
N
Set if the most significant bit of the word result is set. Cleared otherwise.
Mnemonic
Format
Bytes
BFLDL bitoff
Q
, #mask
8
, #data
8
0A QQ @@##
4
Summary of Contents for ST10 Series
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