Apple MultiRam C PROGRAMMING AUXILIARY MEMORY, Table, Soft switches

PROGRAMMING AUXILIARY MEMORY 7.3

			Table 8.1
			Soft switches
Switch	Location			Function
Name	Hex	Decimal
------	-----	-------	----------------------------------
RAMRD	$C013	49171	Read RAMRD switch
	$C002	49154	OFF: Read Main 48K ($0200—$BFFF)
	$COO3	49155	ON:	Read Aux. 48K
RAMWRT	$C014	49172	Read RAMWRT switch
	$CD04	49156	OFF: Write to Main 48K
	$C005	49157	ON:	Write to Aux. 48K
ALTZP	$C016	49174	Read ALTZP switch
	$C008	49160	OFF: Use Main memory, Page 0. stack
				bank—switched (16K) memory
	$C009	49161	ON:	Use Aux. memory. Page 0, stack
				bank—awitched memory
80STORE	$C018	49176	Read 80STORE switch
	$C000	49152	OFF: Enable RAMRD, RANWRT switches
				for video pages
	$C001	49153	ON	Override RAMRD, RAMWRT switches
				for video pages (use PAGE2 switch)
80COL	$CD1F	49183	Read 8OCOL switch
	$COOC	49163	OFF: Display 40—colunma
	$COOD	49164	ON :	Display 80—columns
TEXT	$CO1A	49178	Read TEXT switch
	$C050	49232	OFF: Display graphics
	$C051	49233	ON:	Display text
MIXED	$CO1B	49179	Read MIXED switch
	$C052	49234	OFF: Full graphics
	$C053	49235	ON:	Mixed text and graphics
PAGE2	$CO1C	49180	Read PAGE2 switch
	$C054	49236	OFF:	1. Display video page 1 using
				RAMRD.RAMWRT (80STORE off)

2.Display video page 1 using main memory (8OSTORE on)

$C055	49237	ON : 1. Display video	page 2 using
		RAMRD, RANWRT	(80STORE off)

2.Display video page 1 using AUX. memory (80STORE on)

HIRES	$C01D	49181	Read HIRES switch
	$C056	49238	OFF: Low—res graphics selected
	$C057	49239	ON: Hi—res graphics selected

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