pad PREFS.CONF to 512 bytes because reasons

Makefile

@@ -71,6 +71,7 @@ dsk: md asm
 	$(CADIUS) ADDFILE build/"$(DISK)" "/${VOLUME}/" "build/LAUNCHER.SYSTEM" >>build/log
 #	cp res/prefs-sample.conf build/PREFS.CONF >>build/log
 	cp res/prefs.conf build/PREFS.CONF >>build/log
+	bin/padto 512 build/PREFS.CONF
 	$(CADIUS) ADDFILE build/"$(DISK)" "/${VOLUME}/" "res/COVER" >>build/log
 	$(CADIUS) ADDFILE build/"$(DISK)" "/${VOLUME}/" "build/PREFS.CONF" >>build/log
 	$(CADIUS) ADDFILE build/"$(DISK)" "/${VOLUME}/" "res/GAMES.CONF" >>build/log

bin/padto

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+totalsize=$1
+outfile=$2
+filesize=`stat -f "%z" "$outfile"`
+padsize=$((512-$filesize))
+dd if=/dev/zero bs=1 count=$padsize >> "$outfile"

res/attract.conf

@@ -1 +1 @@
-#
+#

res/fx.conf

@@ -1 +1 @@
-#
+#

src/parse.prefs.a

@@ -17,7 +17,7 @@
 ; - kNextDFX
 ;
 
-kGlobalPrefsBuffer = $0800
+kGlobalPrefsBuffer = $8000
 
 kGlobalPrefsFilename
          !byte 10
@@ -45,8 +45,7 @@ kNextDFX
 ;        $00/$01/$FE/$FF clobbered
 ;------------------------------------------------------------------------------
 SaveGlobalPreferences
-         lda     #$00
-         ldy     #$08
+         +LDADDR kGlobalPrefsBuffer
          +STAY   $FE
 
          +LDADDR @kFluff1
@@ -72,11 +71,6 @@ SaveGlobalPreferences
          +LDADDR @kEOF
          jsr     @addString
 
-         bit   $c010
--        lda   $c000
-         bpl   -
-         bit   $c010
-
          jsr   SaveSmallFile
          !word kGlobalPrefsFilename
          !word kGlobalPrefsBuffer