Panasonic MN1030 Manuale Utente

Pagina di 340
Chapter  9  Writing Machine Language Instructions and Directive Statements
174  Writing Directive Statements
Usage example
Below is an example use of the global directive.
NOTE:
If a section name was referred as an external label, declaration with the section 
directive, not with the global directive, is necessary.
Example:
sec     section CODE,PUBLIC,1
_TEXT   section CODE,PUBLIC,1
        mov      sec, A0
global
SUB1
;external declaration
global
READ, 
WRITE
;external reference
main
jsr
READ
.
.
jsr
WRITE
.
.
SUB1
mov
0x11, D0
.
.
rts
end