A83: Compare from 'hl'...?

To: assembly-83@lists.ticalc.org
Subject: A83: Compare from 'hl'...?
From: Jkhum98@aol.com
Date: Fri, 6 Nov 1998 20:45:06 EST
Delivered-To: assembly-83-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: assembly-83@lists.ticalc.org


Whats the best way to test a 16-Bit Number in 'hl'?  I'm using Linus' new Menu
Emulator and when you choose an item from the menu, it outputs a value to
'hl'... If you choose from the first submenu, its a number from 1-256 and I
know how to test that with a compare, but from the other submenus, the value
is a 16-Bit Number... how do I test for that? Would this routine work...? My
program crashes, but Im not sure if its this routine or something else, but
can somebody check this or give me a better way...? Thanks. =)
																--Jason K.
;choosing the first item from the 2nd submenu,
;it outputs the value '257' to 'hl'...

	ld a, 255
	call _SETXXOP1
	call _PLUS1
	call _SETXXXXOP2
	call _INVSUB
	call _OP2TOOP1
	call _CONVOP1
	ex de, hl
	ld a, l
	cp 1
	jp z, Label
	etc...

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