preopen GT flag

also "corrected" some build errors

events.asm

@@ -136,6 +136,10 @@ OnNewFile:
 			LDA.b #$20 : STA $7EF2DB ; pyramid hole already open
 		+
 
+		LDA.l PreopenGanonsTower : BEQ +
+			LDA.b #$20 : STA $7EF2C3 ; Ganons Tower already open
+		+
+
 		LDA StartingSword : STA $7EF359 ; set starting sword type
 	PLP : PLX
 RTL

tables.asm

@@ -376,7 +376,11 @@ org $30808B ; PC 0x18008B
 PreopenPyramid:
 db $00 ; #$00 = Off (default) - #$01 = On
 ;--------------------------------------------------------------------------------
-; 0x18008C - 0x18008F (unused)
+org $30808C ; PC 0x18008C
+PreopenGanonsTower:
+db $00 ; #$00 = Off (default) - #$01 = On
+;--------------------------------------------------------------------------------
+; 0x18008D - 0x18008F (unused)
 ;--------------------------------------------------------------------------------
 org $308090 ; PC 0x180090 - 0x180097
 ProgressiveSwordLimit:

utilities.asm

@@ -677,7 +677,7 @@ WriteVRAMStripe:
 	PHX
 		LDX $1000 ; get pointer
 		AND.w #$7F : STA $1002, X : INX #2 ; set destination
-	PLA : ASL : AND.w #7FFF : ORA.w #7000 : STA $1002, X : INX #2 ; set length and enable RLE
+	PLA : ASL : AND.w #$7FFF : ORA.w #$7000 : STA $1002, X : INX #2 ; set length and enable RLE
 	TYA : STA $1002, X : INX #2 ; set tile
 	SEP #$20 ; set 8-bit accumulator
 		LDA.b #$FF : STA $1002, X
@@ -693,11 +693,11 @@ RTL
 ; in:	X(w) - Length in Tiles
 ; in:	Y(w) - Address of Data to Copy
 ;--------------------------------------------------------------------------------
-WriteVRAMStripe:
+WriteVRAMBlock:
 	PHX
 		LDX $1000 ; get pointer
 		AND.w #$7F : STA $1002, X : INX #2 ; set destination
-	PLA : ASL : AND.w #3FFF : STA $1002, X : INX #2 ; set length
+	PLA : ASL : AND.w #$3FFF : STA $1002, X : INX #2 ; set length
 
 	PHX
 		TYX ; set X to source