Intel 8080 - B1_Page_54

Chapter 2. Assembly Language Concepts
Chaining of Symbol Definitions
The
ISIS-II 8080/8085 Macro Assembler is e<,sentially a 2-pass assembler. All symbol table entries must be
resolvable in two passes. Therefore,
X
EQU
Y
Y
EQU
is legal, but in the series
X
EQU
Y
Y
EQU
z
z
EQU
the first line is illegal as X cannot be resolved in two passes and remains undefined.
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