. Assembler Operator

Arguments

operand.position_operand

Description

The dot operator ('.') designates a bit from the word operand whose position is specified by the position_operand. The position_operand must be an absolute expression that evaluates to a number from 0-15. The operand specifies a bit-addressable word in the internal RAM or SFR area.

The following table specifies the different memory areas for operand:

Address Range	Location
000000h-00007Fh	Internal RAM
000080h-0000EFh	SFR Area
00FD00h-00FDFEh	Internal RAM
00FF00h-00FFDEh	SFR Area

The operand may also be located in a bit-addressable data section as shown in the example below.

Example

BD10   SECTION DATA BITADDRESSABLE
 BW0   DSW1
BD10   ENDS
EXTRN  BW1 : BIT WORD                ; external bit word

BCLR   BW0.3                         ; valid bitaddress
BCLR   BW1.15                        ; external bit word in bitaddress
BCLR   0FD00H.15

. Assembler Operator

. Assembler Operator