Get system command output: Difference between revisions
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* [[Execute_a_system_command | Execute a system command]]
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=={{header|6502 Assembly}}==
{{works with|Commodore 64}}
Uses the system call <code>$FFED</code> which returns the screen dimensions (measured in 8x8 pixel squares).
<lang 6502asm>JSR $FFED
;returns screen width in X and screen height in Y
dex ;subtract 1. This is more useful for comparisons.
dey ;subtract 1. This is more useful for comparisons.
stx $20 ;store in zero page ram
sty $21 ;store in zero page ram</lang>
=={{header|68000 Assembly}}==
{{works with|NEOGEO MVS}}
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