;  vars.inc - Macros for Defining Variables
;
;  VarStart Address - Specify Where Variables Begin
;  VarAdd Label, Size - Specify a Variable of a Given Size
;
;  99.07.31 - Updated to Include Check for repeated
;   Invocations
;
;  Myke Predko
;  99.06.25
;
VarStart macro mStart, mEnd
 ifdef VarStartVar
  error "'VarStart' Invocation Repeated More than once"
 else
#define VarStartVar
 endif
VarCurrent set mStart
VarEnd set mEnd
 endm

VarAdd macro VarName, Size
 if (VarCurrent > VarEnd)
  error "Too Many Variables for Allocated File Registers"
 endif
VarName EQU VarCurrent
VarCurrent set VarCurrent + Size
 endm