2011-03-04, 09:39 PM
Hi Boriel,
I have found a bug with -o3 optimiser (-o2 works well)
In following code (not fully finished yet) in -o3 mode not all chess Figures are displayed. The figures are named in german as they are just placeholders for graphics that will be added later.
Oh, just noticed that also the binary operator shortcuts (|, &, ...) are not working too (yet).
I have found a bug with -o3 optimiser (-o2 works well)
In following code (not fully finished yet) in -o3 mode not all chess Figures are displayed. The figures are named in german as they are just placeholders for graphics that will be added later.
Oh, just noticed that also the binary operator shortcuts (|, &, ...) are not working too (yet).
Code:
' Blind King (c) 2010 By LCD, written using BorIDE and ZXBC
FUNCTION attrAddress(x as uByte, y as uByte) as uInteger
';; This function returns the memory address of the Character Position
';; x,y in the attribute screen memory.
';; Adapted from code by Jonathan Cauldwell - Adapted for ZX BASiC by Britlion from Na_TH_AN's fourspriter
asm
ld a,(IX+7) ;ypos
rrca
rrca
rrca ;' Multiply by 32
ld l,a ;' Pass to L
and 3 ;' Mask with 00000011
add a,88 ;' 88 * 256 = 22528 - start of attributes.
ld h,a ;' Put it in the High Byte
ld a,l ;' We get y value *32
and 224 ;' Mask with 11100000
ld l,a ;' Put it in L
ld a,(IX+5) ;' xpos
add a,l ;' Add it to the Low byte
ld l,a ;' Put it back in L, and we're done. HL=Address.
end asm
END FUNCTION
FUNCTION scrAddress(x as uByte, y as uByte) as Uinteger
asm
;' This fn returns the address into HL of the screen address
;' x,y in character grid notation.
;' Original code was extracted by BloodBaz - Adapted for ZX BASiC by Britlion from Na_TH_AN's fourspriter
; x Arrives in A, y is in stack.
and 31
ld l,a
ld a,(IX+7) ; Y value
ld d,a
and 24
add a,64
ld h,a
ld a,d
and 7
rrca
rrca
rrca
or l
ld l,a
end asm
END FUNCTION
sub putblock(x as Ubyte,y as ubyte,wid as ubyte,hgt as ubyte,adr as Uinteger)
dim scr,attribute as Uinteger
dim x1,y1 as Ubyte
dim a as Ubyte
poke uinteger @putblock1+7,wid
poke uinteger @putblock2+7,wid
for y1=0 to hgt-1
scr=scrAddress(x,y+y1)
for a=0 to 7
poke uinteger @putblock1+1,adr
poke uinteger @putblock1+4,scr
putblock1:
asm
ld hl,1
ld de,2
ld bc,3
ldir
end asm
adr=adr+wid
scr=scr+256
next a
next y1
attribute=attrAddress(x,y)
for y1=0 to hgt-1
poke uinteger @putblock2+1,adr
poke uinteger @putblock2+4,attribute
adr=adr+wid
attribute=attribute+32
putblock2:
asm
ld hl,4
ld de,5
ld bc,6
ldir
end asm
next y1
End sub
function ScanField(x as integer,y as integer,mask as ubyte) as ubyte
if x>=0 and x<8 and y>=0 and y<8 then
adr=@overlay+(y<<3)+x
return peek adr band mask
Else
return 0
end if
end function
sub SetField(x as uinteger,y as uinteger,fig as ubyte)
dim adr as uinteger
adr=@overlay+(y<<3)+x
poke adr,(peek adr) bor fig
end sub
function ScanDiagonal(x as ubyte,y as ubyte) as ubyte
dim dist,found,d1,d2,d3,d4 as ubyte
while found=0
end while
'This scans diagonal fields from x,y until figure or end of field for queen or bishop
end Function
function ScanStraight(x as ubyte,y as ubyte) as ubyte
'This scans straight fields until figure or end of field for queen or rook
end Function
function ScanNear(x as ubyte,y as ubyte) as ubyte
'This scans next fields of x,y until figure for king or pawn
dim result as ubyte
if ScanField(x-1,y-1,7)=1 or ScanField(x+1,y-1,7)=1 then result=1:end if
if ScanField(x-1,y-1,7)=6 or ScanField(x,y-1,7)=6 or ScanField(x+1,y-1,7)=6 or ScanField(x-1,y,7)=6 or ScanField(x+1,y,7)=6 or ScanField(x-1,y+1,7)=6 or ScanField(x,y+1,7)=6 or ScanField(x+1,y+1,7)=6 then result=result bor 32:end if
return result
end Function
function ScanKnight(x as ubyte,y as ubyte) as ubyte
'This scans field x,y if attacked by knight
dim result as ubyte
if ScanField(x-1,y-2,7)=3 or ScanField(x+1,y-2,7)=3 or ScanField(x-1,y+2,7)=3 or ScanField(x+1,y+2,7)=3 or ScanField(x-2,y-1,7)=3 or ScanField(x+2,y-1,7)=3 or ScanField(x-2,y+1,7)=3 or ScanField(x+2,y+1,7)=3 then result=3:end if
return result
end Function
function ScanFields(x as ubyte,y as ubyte) as ubyte
'This scans all fields, first: diagonal for queen or bishop until figure or end of field
print at 0,24;ScanNear(x,y);" ";
print at 1,24;ScanKnight(x,y);" ";
end Function
paper 0:ink 6:bright 1:flash 0:border 2:cls
'print at 0,0;"\{i7}\{p1}Blind King 2010 By LCD"
dim x,y,x1,y1,col,a,left,posx,posy as ubyte
dim scr,adr as uinteger
print at 23,0;"Press any key to start battle"
pause 0
randomize
cls
adr=@chessboard
for y=0 to 7
for x=0 to 7
col=peek(adr)
for y1=0 to 2
scr=attrAddress(x*3,y*3+y1)
poke scr,col:poke scr+1,col:poke scr+2,col
next y1
adr=adr+1
next x
next y
' Setup field
left=8 'Bauern
while left>0
x=int(rnd*7.9999)
y=int(rnd*6.9999)
if ScanField(x,y,7)=0 then
SetField(x,y,1)
left=left-1
end If
end while
left=2 'Türme
while left>0
x=int(rnd*7.9999)
y=int(rnd*6.9999)
if ScanField(x,y,7)=0 then
SetField(x,y,2)
left=left-1
end If
end while
left=2 'Springer
while left>0
x=int(rnd*7.9999)
y=int(rnd*6.9999)
if ScanField(x,y,7)=0 then
SetField(x,y,3)
left=left-1
end If
end while
left=2 'Läufer
while left>0
x=int(rnd*7.9999)
y=int(rnd*6.9999)
if ScanField(x,y,7)=0 then
SetField(x,y,4)
left=left-1
end If
end while
left=1 'Dame
while left>0
x=int(rnd*7.9999)
y=int(rnd*6.9999)
if ScanField(x,y,7)=0 then
SetField(x,y,5)
left=left-1
end If
end while
left=1 'König
while left>0
x=int(rnd*7.9999)
y=int(rnd*6.9999)
if ScanField(x,y,7)=0 then
SetField(x,y,6)
left=left-1
end If
end while
' Display field (test)
for y=0 to 7
for x=0 to 7
a=ScanField(x,y,7)
x1=x*3+1
y1=y*3+1
if a=1 then print at y1,x1;"B";:end If
if a=2 then print at y1,x1;"T";:end If
if a=3 then print at y1,x1;"S";:end If
if a=4 then print at y1,x1;"L";:end If
if a=5 then print at y1,x1;"D";:end If
if a=6 then print at y1,x1;"K";:end If
next x
next y
posx=7:posy=7
Mainloop:
x1=posx*3+1
y1=posy*3+1
print at y1,x1;"F";
if inkey$="o" and posx>0 then print at y1,x1;" ";:posx=posx-1:ScanFields(posx,posy):end if
if inkey$="p" and posx<7 then print at y1,x1;" ";:posx=posx+1:ScanFields(posx,posy):end if
if inkey$="q" and posy>0 then print at y1,x1;" ";:posy=posy-1:ScanFields(posx,posy):end if
if inkey$="a" and posy<7 then print at y1,x1;" ";:posy=posy+1:ScanFields(posx,posy):end if
goto Mainloop
'pause 0
End
chessboard:
asm
defb 32,64,32,64,32,64,32,64
defb 64,32,64,32,64,32,64,32
defb 32,64,32,64,32,64,32,64
defb 64,32,64,32,64,32,64,32
defb 32,64,32,64,32,64,32,64
defb 64,32,64,32,64,32,64,32
defb 32,64,32,64,32,64,32,64
defb 64,32,64,32,64,32,64,32
end asm
overlay:
'0=Leer
'1=Bauer
'2=Turm
'3=Springer
'4=Läufer
'5=Königin
'6=König
'+128=hidden
'+64=White field
'+32=Black field
asm
defb 56,80,56,80,56,80,56,80
defb 80,56,80,56,80,56,80,56
defb 56,80,56,80,56,80,56,80
defb 80,56,80,56,80,56,80,56
defb 56,80,56,80,56,80,56,80
defb 80,56,80,56,80,56,80,56
defb 56,80,56,80,56,80,56,80
defb 80,56,80,56,80,56,80,56
end asm
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