Merge pull request #286 from boriel/bugfix/nextbuild_crash_o3

Add tests for -O3 nextbuild crash

Author: boriel

tests/functional/opt3_nextbuild.asm

@@ -0,0 +1,78 @@
+	org 32768
+__START_PROGRAM:
+	di
+	push ix
+	push iy
+	exx
+	push hl
+	exx
+	ld hl, 0
+	add hl, sp
+	ld (__CALL_BACK__), hl
+	ei
+	ld hl, 2
+	push hl
+	ld a, 16
+	push af
+	xor a
+	push af
+	push af
+	push hl
+	push af
+	ld hl, 49152
+	push hl
+	call _TileMap
+	xor a
+	push af
+	push af
+	push af
+	push af
+	ld a, 100
+	push af
+	ld hl, 100
+	push hl
+	call _UpdateSprite
+	ld bc, 0
+__END_PROGRAM:
+	di
+	ld hl, (__CALL_BACK__)
+	ld sp, hl
+	exx
+	pop hl
+	pop iy
+	pop ix
+	exx
+	ei
+	ret
+__CALL_BACK__:
+	DEFW 0
+_UpdateSprite:
+	push ix
+	ld ix, 0
+	add ix, sp
+_UpdateSprite__leave:
+	exx
+	ld hl, 12
+__EXIT_FUNCTION:
+	ld sp, ix
+	pop ix
+	pop de
+	add hl, sp
+	ld sp, hl
+	push de
+	exx
+	ret
+_TileMap:
+	push ix
+	ld ix, 0
+	add ix, sp
+_TileMap__leave:
+	exx
+	ld hl, 14
+	jp __EXIT_FUNCTION
+ZXBASIC_USER_DATA:
+; Defines DATA END --> HEAP size is 0
+ZXBASIC_USER_DATA_END:
+	; Defines USER DATA Length in bytes
+ZXBASIC_USER_DATA_LEN EQU ZXBASIC_USER_DATA_END - ZXBASIC_USER_DATA
+	END

tests/functional/opt3_nextbuild.bas

@@ -0,0 +1,14 @@
+
+
+sub UpdateSprite(ByVal x AS uinteger,ByVal y AS UBYTE,ByVal spriteid AS UBYTE,ByVal pattern AS UBYTE, _
+                 ByVal mflip as ubyte,ByVal anchor as ubyte)
+end sub
+
+
+sub TileMap(byval address as uinteger, byval blkoff as ubyte, byval numberoftiles as uinteger,byval x as ubyte, _
+            byval y as ubyte, byval width as ubyte, byval mapwidth as uinteger)
+END SUB
+
+
+TileMap($c000,0,2,0,0,16,2)
+UpdateSprite(100,100,0,0,0,0)