DrawClippedSprite:  ;D=X E=Y A=spriteID. Allows negative numbers to an extent.
;screen dimensions are 64x64 pixels
 jp $
 rrca
 rrca  ;%11000000 get
 ld c,a
 ld a,d
 and %00000111
 ld b,a  ;save for getting mask address
 add a,a
 add a,a
 add a,a ;x8 %00111000
 add a,c ;merge to get correct sprite position
 ld c,a  ;position saved
 ld a,b
 add a,8 ;getting spritemask position
 ld h,$40
 ld L,a
 ld b,(hl) ;B=spritemask
Getbfraddr:
 ld a,e
 add a,a
 ld l,a
 sbc a,a
 ld h,a 
 add hl,hl
 add hl,hl
 ld a,d
 ld d,e
 add a,a
 add a,a
 add a,a  ;*8
 ld e,a  
 ld a,d   ; used for alignment later on needs to be preserved here
 ld d,$80
 add hl,de ;leaves HL as the position on the buffer
Getspraddr:
 ld e,b  ;put mask into e
 ld b,$87
 push bc
 pop ix    ;put sprite into ix
 ;we have bc free

 ld b,8
Draw:
 and 7
 jp z,_aligned
 ld a,e
 cpl
 ld c,a
_Unaligned:
 bit 1,h
 jp nz,_skipd
 ld a,e
 cpl
 ld c,a
 ld a,(ix)  ;load a with ix
 
 and c
 or (hl)    ;or with screen
 ld (hl),a  ;draw to screen
 inc hl      ;inc to next byte for alignment
 inc ix
 ld a,(ix)  ;load a with ix
 and e       ;or with mask
 or (hl)    ;or with screen
 ld (hl),a  ;draw to screen
 inc ix
 ld de,7    ;move to next row
 add hl,de

_skipd:
 djnz _Unaligned
 ld ix,$8eeC
 ret         ;done 

_aligned:
 bit 1,h
 jp nz,__skipd
 ld a,(ix)  ;load a with ix
 or (hl)    ;or with screen
 ld (hl),a  ;draw to screen
 inc ix
 ld de,8    ;move to next row
 add hl,de
__skipd:
 djnz _aligned
 ld ix,$8eeC
 ret         ;done