From 8e95d036e35d8b0249a8ad5360e4d732cda122cc Mon Sep 17 00:00:00 2001
From: cuz <cuz@b7a2c559-68d2-44c3-8de9-860c34a00d81>
Date: Sat, 26 Feb 2005 09:34:01 +0000
Subject: [PATCH] Move constructor code into the INIT segment

git-svn-id: svn://svn.cc65.org/cc65/trunk@3406 b7a2c559-68d2-44c3-8de9-860c34a00d81
---
 libsrc/apple2/cputc.s      | 84 ++++++++++++++++++++------------------
 libsrc/apple2/dosdetect.s  |  4 +-
 libsrc/apple2/get_ostype.s | 13 +++++-
 libsrc/apple2/mainargs.s   | 13 ++++--
 4 files changed, 69 insertions(+), 45 deletions(-)

diff --git a/libsrc/apple2/cputc.s b/libsrc/apple2/cputc.s
index 76ca7769c..a09dadd32 100644
--- a/libsrc/apple2/cputc.s
+++ b/libsrc/apple2/cputc.s
@@ -14,60 +14,66 @@
 
 	.include	"apple2.inc"
 
+; ------------------------------------------------------------------------
+; Initialization
+
+.segment        "INIT"
+
 initconio:
 	lda	#$FF		; Normal character display mode
 	sta	INVFLG
 	lda	#$00
-	jsr	SETWND		; Reset text window to full screen
-	rts
+       	jmp	SETWND		; Reset text window to full screen
 
+; ------------------------------------------------------------------------
 ; Plot a character - also used as internal function
 
+.code
+
 _cputcxy:
-	pha			; Save C
-	jsr	popa		; Get Y
-	jsr	_gotoxy
-	pla			; Restore C
+     	pha			; Save C
+     	jsr	popa		; Get Y
+     	jsr	_gotoxy
+     	pla			; Restore C
 
 _cputc:
-	cmp	#$0D		; Test for \r = carrage return
-	beq	left
-	cmp	#$0A		; Test for \n = line feed
-	beq	newline
-	ora	#$80		; Turn on high bit
-	cmp	#$E0		; Test for lowercase
-	bcc	cputdirect
-	and	#$DF		; Convert to uppercase
+     	cmp	#$0D		; Test for \r = carrage return
+     	beq	left
+     	cmp	#$0A		; Test for \n = line feed
+     	beq	newline
+     	ora	#$80		; Turn on high bit
+     	cmp	#$E0		; Test for lowercase
+     	bcc	cputdirect
+     	and	#$DF		; Convert to uppercase
 
 cputdirect:
-	jsr	putchar
-	inc	CH		; Bump to next column
-	lda	CH
-	cmp	#40
-	bne	done
+     	jsr	putchar
+     	inc	CH		; Bump to next column
+     	lda	CH
+     	cmp	#40
+     	bne	done
 left:	lda	#$00		; Goto left edge of screen
-	sta	CH
+     	sta	CH
 done:	rts
 
 newline:
-	inc	CV
-	lda	CV
-	cmp	#24
-	bne	:+
-	lda	#$00
-	sta	CV
-:	jsr	BASCALC
-	rts
-		
-putchar:	
-	and	INVFLG		; Apply normal, inverse, flash
-	ldy	CH
-	sta	(BASL),Y
-	rts
+     	inc	CV
+     	lda	CV
+     	cmp	#24
+     	bne	:+
+     	lda	#$00
+     	sta	CV
+:      	jmp     BASCALC
+
+putchar:
+     	and	INVFLG		; Apply normal, inverse, flash
+     	ldy	CH
+     	sta	(BASL),Y
+     	rts
 
 _gotoxy:
-	sta	CV		; Store Y
-	jsr	BASCALC
-	jsr	popa		; Get X
-	sta	CH		; Store X
-	rts
+     	sta	CV		; Store Y
+     	jsr	BASCALC
+     	jsr	popa		; Get X
+     	sta	CH		; Store X
+     	rts
diff --git a/libsrc/apple2/dosdetect.s b/libsrc/apple2/dosdetect.s
index 9b3731ac5..248ea61a0 100644
--- a/libsrc/apple2/dosdetect.s
+++ b/libsrc/apple2/dosdetect.s
@@ -29,6 +29,8 @@
 ; - "Apple II ProDOS 8 TechNote #023: ProDOS 8 Changes and Minutia"
 ; - ProDOS TechRefMan, chapter 5.2.4
 
+.segment        "INIT"
+
 initdostype:
 	lda	MLI
 	cmp	#$4C		; Is MLI present? (JMP opcode)
@@ -40,6 +42,6 @@ initdostype:
 :	sta	__dos_type
 done:	rts
 
-	.bss
+.bss
 
 __dos_type:	.res	1
diff --git a/libsrc/apple2/get_ostype.s b/libsrc/apple2/get_ostype.s
index 9523d8b5e..ba2347ab5 100644
--- a/libsrc/apple2/get_ostype.s
+++ b/libsrc/apple2/get_ostype.s
@@ -10,6 +10,11 @@
 ; Identify machine according to:
 ; "Apple II Miscellaneous TechNote #7: Apple II Family Identification"
 
+; ------------------------------------------------------------------------
+; Initialization
+
+.segment        "INIT"
+
 initostype:
 	sec
 	jsr	$FE1F
@@ -30,13 +35,17 @@ next:	inx
 	bne	:-
 	beq	next		; Branch always
 
+; ------------------------------------------------------------------------
+
+.code
+
 _get_ostype:
 	lda	ostype
 	ldx	#$00
 	rts
 
 
-	.rodata
+.rodata
 
 index:	.byte	$B3, $00		; Apple ][
 	.byte	$B3, $1E, $00		; Apple ][+
@@ -65,6 +74,6 @@ value:	.byte	$38, $10		; Apple ][
 	.byte	$00
 
 
-	.bss
+.bss
 
 ostype:	.res	1
diff --git a/libsrc/apple2/mainargs.s b/libsrc/apple2/mainargs.s
index 4f88aeb3a..004a1629f 100644
--- a/libsrc/apple2/mainargs.s
+++ b/libsrc/apple2/mainargs.s
@@ -35,13 +35,20 @@ BASIC_BUF_LEN = 239
 FNAM_LEN = $280
 FNAM = $281
 
-	.assert		MAXARGS <= (BASIC_BUF_LEN - 2)/2, error, "Too many arguments"
 MAXARGS	 = 10			; Maximum number of arguments allowed
 REM	 = $B2			; BASIC token-code
 NAME_LEN = 15			; maximum length of command-name
+        
+; Validate sizes
+.if     MAXARGS > (BASIC_BUF_LEN - 2)/2
+.error  "Too many arguments"
+.endif
+
+; Get possible command-line arguments. Goes into the special INIT segment,
+; which may be reused after the startup code is run
+
+.segment        "INIT"
 
-; Get possible command-line arguments.
-;
 initmainargs:
 
 ; Assume that the program was loaded, a moment ago, by the traditional LOAD
-- 
2.39.5