TAL Reference Manual

Statements

TAL Reference Manual—526371-001

12-7

Bit-Deposit Assignment Statement

The bit deposit form of the assignment statement lets you assign a value to an

individual bit or to a group of sequential bits.

variable

is the identifier of a STRING or INT variable, but not an UNSIGNED(1–16)

variable.

variable can be the identifier of a simple variable, array element, or simple

pointer (inside or outside a structure).

left-bit

is an INT constant that specifies the leftmost bit of the bit deposit field.

For STRING variables, specify a bit number in the range 8 through 15. Bit 8 is the

leftmost bit in a STRING variable; bit 15 is the rightmost bit.

right-bit

is an INT constant specifying the rightmost bit of the bit deposit field. right-bit must

be equal to or greater than

left-bit.

For STRING variables, specify a bit number in the range 8 through 15. Bit 8 is the

leftmost bit in a STRING variable; bit 15 is the rightmost bit.

expression

is an INT arithmetic or conditional expression, with or without a bit field

specification.

Usage Considerations

The bit deposit field is on the left side of the assignment operator (:=). The bit deposit

assignment changes only the bit deposit field. If the value on the right side has more

bits than the bit deposit field, the system ignores the excess high-order bits when

making the assignment.

variable

< left-bit

ns ns ns

: right-bit

ns ns ns

:= expression

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