More efficient even/odd checking

Documentation.md

@@ -44,7 +44,7 @@ Place the WeeGUI library in the same ProDOS folder as your program. Then, at the
 
 	10  PRINT  CHR$ (4)"BRUN WEEGUI"
 
-That's it! WeeGUI will load itself at address $7E00 of main memory, just below ProDOS.
+That's it! WeeGUI will load itself into memory and it's ready for use.
 
 
 ####Assembly Language
@@ -65,12 +65,29 @@ When using assembly language, you can install WeeGUI by loading the *WEEGUI* lib
 		.byte "BRUN WEEGUI",$8d,0
 		
 
-If you load the library some other way, make sure you load it at $7E00, and perform a JSR to that address in order to prepare the library for use.
+If you load the library some other way, make sure you load it at the base address specified in the memory map below, and perform a JSR to that address in order to prepare the library for use.
 		
 You also need to include the file *WeeGUI_MLI.s* in your program. This is the WeeGUI Machine Language Interface, and it provides all the constants, entry points, etc that you'll need for WeeGUI.
 
 
-With either language, WeeGUI protects itself using ProDOS's memory page reservation scheme. This prevents it from being overwritten by ProDOS file operations, or Applesoft BASIC.
+With either language, WeeGUI protects itself using ProDOS's memory page reservation scheme, and Applesoft's HIMEM. This prevents it from being overwritten by ProDOS file operations, or Applesoft code/variables.
+
+
+####Memory Map
+
+WeeGUI is 6k in size, and lives at the top of main memory, right under ProDOS. For an experimental version that lives primarily in the auxiliary memory bank, see Appendix A.
+
+<table align="center">
+<tr><td>$FFFF</td><td></td></tr>
+<tr><td></td><td>...</td></tr>
+<tr><td>$BFFF</td><td>ProDOS</td></tr>
+<tr><td>$9600</td><td>ProDOS</td></tr>
+<tr><td>$95FF</td><td>WeeGUI</td></tr>
+<tr><td>$7D00</td><td>WeeGUI</td></tr>
+<tr><td>$7CFF</td><td>HIMEM</td></tr>
+<tr><td></td><td>...</td></tr>
+<tr><td>$0000</td><td></td></tr>
+</table>
 
 
 <br>

ReadMe.md

@@ -9,6 +9,4 @@ Known issues
 
 To Do:
 ------
-- Document final memory map
-- Remove references to ORG in docs (except in memory map)
 - Put sample code in docs

mouse.s

@@ -442,8 +442,8 @@ renderPointer:
 	sta BASH
 
 	lda	WG_MOUSEPOS_X		; X even?
-	and	#$01
+	ror
-	bne	renderPointer_xOdd
+	bcs	renderPointer_xOdd
 
 	SETSWITCH	PAGE2ON
 

painting.s

@@ -105,8 +105,8 @@ WGPlot:
 	sta BASH
 
 	lda	WG_CURSORX			; X even?
-	and	#$01
+	ror
-	bne	WGPlot_xOdd
+	bcs	WGPlot_xOdd
 
 	SETSWITCH	PAGE2ON		; Plot the character
 	pla

rects.s

@@ -45,8 +45,8 @@ WGFillRect_vertLoop:
 	sta BASH
 
 	lda	PARAM0			; Left edge even?
-	and	#$01
+	ror
-	bne	WGFillRect_horzLoopOdd
+	bcs	WGFillRect_horzLoopOdd
 
 	lda PARAM2
 	cmp #1			; Width==1 is a special case
@@ -81,8 +81,8 @@ WGFillRect_horzLoopEvenAligned1:	; Draw odd columns
 	bpl	WGFillRect_horzLoopEvenAligned1	; Loop for w/2
 
 	lda	PARAM2						; Is width even?
-	and	#$01
+	ror
-	beq	WGFillRect_horzLoopEvenAlignedEvenWidth
+	bcc	WGFillRect_horzLoopEvenAlignedEvenWidth
 
 WGFillRect_horzLoopEvenAlignedOddWidth:
 	; CASE 1a: Left edge even aligned, odd width
@@ -129,8 +129,8 @@ WGFillRect_horzLoopOddAligned1:		; Draw even columns
 	bpl	WGFillRect_horzLoopOddAligned1	; Loop for w/2
 
 	lda	PARAM2						; Is width even?
-	and	#$01
+	ror
-	beq	WGFillRect_horzLoopOddAlignedEvenWidth
+	bcc	WGFillRect_horzLoopOddAlignedEvenWidth
 
 WGFillRect_horzLoopOddAlignedOddWidth:
 	; CASE 2a: Left edge odd aligned, odd width
@@ -220,8 +220,8 @@ WGStrokeRect_horzEdge:
 	sta BASH
 
 	lda	PARAM0			; Left edge even?
-	and	#$01
+	ror
-	beq	WGStrokeRect_horzEdgeEven
+	bcc	WGStrokeRect_horzEdgeEven
 	jmp WGStrokeRect_horzLoopOdd
 
 WGStrokeRect_horzEdgeEven:
@@ -253,8 +253,8 @@ WGStrokeRect_horzLoopEvenAligned1:	; Draw odd columns
 	bpl	WGStrokeRect_horzLoopEvenAligned1	; Loop for w/2
 
 	lda	PARAM2						; Is width even?
-	and	#$01
+	ror
-	beq	WGStrokeRect_horzLoopEvenAlignedEvenWidth
+	bcc	WGStrokeRect_horzLoopEvenAlignedEvenWidth
 
 WGStrokeRect_horzLoopEvenAlignedOddWidth:
 	; CASE 1a: Left edge even aligned, odd width
@@ -310,8 +310,8 @@ WGStrokeRect_horzLoopOddAligned1:		; Draw even columns
 	bpl	WGStrokeRect_horzLoopOddAligned1	; Loop for w/2
 
 	lda	PARAM2						; Is width even?
-	and	#$01
+	ror
-	beq	WGStrokeRect_horzLoopOddAlignedEvenWidth
+	bcc	WGStrokeRect_horzLoopOddAlignedEvenWidth
 
 WGStrokeRect_horzLoopOddAlignedOddWidth:
 	; CASE 2a: Left edge odd aligned, odd width
@@ -368,8 +368,8 @@ WGStrokeRect_vertLoop:
 
 	lda	PARAM0			; Left edge even?
 	dec
-	and	#$01
+	ror
-	bne	WGStrokeRect_vertLoopOdd
+	bcs	WGStrokeRect_vertLoopOdd
 
 	; CASE 1: Left edge even-aligned, even width
 	SETSWITCH	PAGE2ON
@@ -380,8 +380,8 @@ WGStrokeRect_vertLoop:
 	lda	PARAM2						; Is width even?
 	inc
 	inc
-	and	#$01
+	ror
-	bne	WGStrokeRect_vertLoopEvenAlignedOddWidth
+	bcs	WGStrokeRect_vertLoopEvenAlignedOddWidth
 
 	lda PARAM2						; Calculate right edge
 	inc
@@ -423,8 +423,8 @@ WGStrokeRect_vertLoopOdd:
 	lda	PARAM2						; Is width even?
 	inc
 	inc
-	and	#$01
+	ror
-	bne	WGStrokeRect_vertLoopOddAlignedOddWidth
+	bcs	WGStrokeRect_vertLoopOddAlignedOddWidth
 
 	lda PARAM2						; Calculate right edge
 	inc
@@ -512,8 +512,8 @@ WGFancyRect_horzEdge:
 	sta BASH
 
 	lda	PARAM0			; Left edge even?
-	and	#$01
+	ror
-	bne	WGFancyRect_horzLoopOdd
+	bcs	WGFancyRect_horzLoopOdd
 
 	; CASE 1: Left edge even-aligned, even width
 	SETSWITCH	PAGE2OFF
@@ -539,8 +539,8 @@ WGFancyRect_horzLoopEvenAligned1:	; Draw odd columns
 	bpl	WGFancyRect_horzLoopEvenAligned1	; Loop for w/2
 
 	lda	PARAM2						; Is width even?
-	and	#$01
+	ror
-	beq	WGFancyRect_horzLoopEvenAlignedEvenWidth
+	bcc	WGFancyRect_horzLoopEvenAlignedEvenWidth
 
 WGFancyRect_horzLoopEvenAlignedOddWidth:
 	; CASE 1a: Left edge even aligned, odd width
@@ -588,8 +588,8 @@ WGFancyRect_horzLoopOddAligned1:		; Draw even columns
 	bpl	WGFancyRect_horzLoopOddAligned1	; Loop for w/2
 
 	lda	PARAM2						; Is width even?
-	and	#$01
+	ror
-	beq	WGFancyRect_horzLoopOddAlignedEvenWidth
+	bcc	WGFancyRect_horzLoopOddAlignedEvenWidth
 
 WGFancyRect_horzLoopOddAlignedOddWidth:
 	; CASE 2a: Left edge odd aligned, odd width
@@ -643,8 +643,8 @@ WGFancyRect_vertLoop:
 
 	lda	PARAM0			; Left edge even?
 	dec
-	and	#$01
+	ror
-	bne	WGFancyRect_vertLoopOdd
+	bcs	WGFancyRect_vertLoopOdd
 
 	; CASE 1: Left edge even-aligned, even width
 	SETSWITCH	PAGE2ON
@@ -655,8 +655,8 @@ WGFancyRect_vertLoop:
 	lda	PARAM2						; Is width even?
 	inc
 	inc
-	and	#$01
+	ror
-	bne	WGFancyRect_vertLoopEvenAlignedOddWidth
+	bcs	WGFancyRect_vertLoopEvenAlignedOddWidth
 
 	lda PARAM2						; Calculate right edge
 	inc
@@ -698,8 +698,8 @@ WGFancyRect_vertLoopOdd:
 	lda	PARAM2						; Is width even?
 	inc
 	inc
-	and	#$01
+	ror
-	bne	WGFancyRect_vertLoopOddAlignedOddWidth
+	bcs	WGFancyRect_vertLoopOddAlignedOddWidth
 
 	lda PARAM2						; Calculate right edge
 	inc

views.s

@@ -324,8 +324,8 @@ paintCheck:
 	bne paintCheck_selected
 
 	lda	WG_VIEWRECORDS+9,y
-	and #$01
+	ror
-	beq paintCheck_unselectedUnchecked
+	bcc paintCheck_unselectedUnchecked
 
 	lda #'D'
 	bra paintCheck_plot
@@ -336,8 +336,8 @@ paintCheck_unselectedUnchecked:
 
 paintCheck_selected:
 	lda	WG_VIEWRECORDS+9,y
-	and #$01
+	ror
-	beq paintCheck_selectedUnchecked
+	bcc paintCheck_selectedUnchecked
 
 	lda #'E'
 	bra paintCheck_plot