User manual

Assembler directives ST Assembler-Linker

76/89 Doc ID 11392 Rev 4

Description

This directive forces the word(s) in its argument list into the object code at the current

address. The arguments may be composed of complex expressions that may even

include external labels. If the argument was an expression and had a value greater

than FFFF then the lower 16 bits of the expression are used and no errors are

generated. WORD sends the words with the least significant byte first.

It's generally used for defining data tables. Synonymous with DC.W.

Example WORD 1,2,3,4,$1234 ;0001,0002,0003,0004,1234

See also DC.B, BYTE, STRING, DC.W, LONG, DC.L

Table 79. WORDS

Purpose Default new label length word.

Format WORDS

Description

When a label is defined, four SEPARATE attributes are defined with its scope (internal

or external defined) value (actual numerical value of the label) relativity (the label is

ABSOLUTE or RELATIVE), and lastly length (BYTE, WORD, or LONG).

All these attributes except length are defined explicitly before or at the definition: you

can force the label to be of a certain length by giving a dot suffix, for example 'label.b'

forces it to byte length.

You may also define a default state for label length: the label is created to this length

unless otherwise forced with a suffix. The default is set to WORD at the start of the

assembly, but may be CHANGED by BYTES, WORDS or LONGS to the appropriate

length.

Example

WORDS

lab1 EQU 5 ; word length for lab1