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zasm - Z80 Assembler – Version 4.2

Pseudo instructions

defl, set and '='

Define a Types of labels: redefinable named values
Types of labels: Redefinable named values
redefinable named value:

<name>[:][:] Pseudo instructions: defl, set and '='
Labels: SET
set <value> <name>[:][:] defl <value> <name>[:][:] = <value>

Pseudo instructions: Label definition
Numeric expressions: Labels
8080 Assembler: Labels
Labels defined with this keyword can be redefined at some later position.

Especially for use in Pseudo instructions: macro, .macro, endm and .endm
8080 pseudo instructions: MACRO
macros it is useful to allow Pseudo instructions: Label definition
Numeric expressions: Labels
8080 Assembler: Labels
labels which can be redefined to another value.

#insert: Examples:
#assert: Example:
incbin: Examples:
Example: define a Pseudo instructions: macro, .macro, endm and .endm
8080 pseudo instructions: MACRO
macro which counts the occurances af something:
Note: the final count is only valid after the last use of this Pseudo instructions: macro, .macro, endm and .endm
8080 pseudo instructions: MACRO
macro in your source!

foo     Pseudo instructions: defl, set and '='
Labels: SET
set 0 Pseudo instructions: macro, .macro, endm and .endm
8080 pseudo instructions: MACRO
macro COUNT foo Pseudo instructions: defl, set and '='
Labels: SET
set foo+1 Pseudo instructions: macro, .macro, endm and .endm
Pseudo instructions: rept, .rept, endm and .endm
endm

#insert: Examples:
#assert: Example:
incbin: Examples:
Example: use of a redefinable Pseudo instructions: Label definition
Numeric expressions: Labels
8080 Assembler: Labels
label in place of a Types of labels: Program labels
Types of labels: Program labels
program label:
Note: forward jumping couldn't be implemented this way!

        Pseudo instructions: macro, .macro, endm and .endm
8080 pseudo instructions: MACRO
macro WAIT ld b,10 foo defl $ call wait_1ms djnz foo Pseudo instructions: macro, .macro, endm and .endm
Pseudo instructions: rept, .rept, endm and .endm
endm

The Pseudo instructions: Label definition
Numeric expressions: Labels
8080 Assembler: Labels
label's value is valid from the position where it was defined to the position where it is redefinedor the Pseudo instructions: end, .end
8080 pseudo instructions: END
end of the source. References to this Pseudo instructions: Label definition
Numeric expressions: Labels
8080 Assembler: Labels
label before it's first definition are illegal!

For more information see the chapter about label definition.

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