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This now starts to really look like a demo. Not yet fullscreen though. 

CPU time is now completely used as a little routine got added to copy
the scroll into double buffer.
Could it be more optimized? Yes, but does it have to?
master
Georges Kesseler 2012-02-20 00:44:37 +01:00
parent efdca8522d
commit a9916c6901
1 changed files with 38 additions and 9 deletions
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43
PARADIST.S
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@ -55,7 +55,8 @@ clear_loop:
dbra d0,clear_loop
movea.l screenad2,a0
movem.l graphic,d6-d7
; movem.l graphic,d6-d7
movem.l black,d6-d7
move.w #285,d2
allline:
ifne overscan
@ -122,7 +123,6 @@ alles:
movem.l d0-d7,(a1)
bsr.s waitvbl
move.b #0,$ffff820a.w
rts
@ -176,7 +176,9 @@ initdist:
move.l a0,distwaveptr
move.l #disttable,disttableptr
move.l #scrnadrs,nextscrn
move.l #screen-230*20,cpybufdest
bra kaka
lea font,a0
lea buffer,a1
moveq #25,d0 ;init all unshiftet linebuffers
@ -236,7 +238,7 @@ testinitbuff:
addq.l #8,a0
lea linebuffend-linebuffbegin-208(a1),a1
dbf d0,testinitbuff
kaka:
;********************************************************
lea screenadr,a3
@ -381,7 +383,8 @@ cont4:
bne scrnok ;~12
lea scrnadrs-nextscrn(a3),a0 ;~12
move.l (a0)+,d0 ;~12
move.l #screen-(20*230),cpybufdest-nextscrn(a3);~24
; move.l #screen-(20*230)+160*6,cpybufdest-nextscrn(a3);~24
dcb $4e71,6
_scrnok:
move.l d0,logbase-nextscrn(a3) ;~20
move.l a0,(a3) ;~20
@ -1010,7 +1013,28 @@ endcpy:
;**********************************************************
;buffercopy
bbb
move.l cpybufdest,a6 ;write there
move.l a6,a5
add.l #230*280*4-230*20,a5 ;read here
rept 5
movem.l (a5)+,d0-d7/a0-a4
movem.l d0-d7/a0-a4,(a6)
movem.l (a5)+,d0-d7/a0-a4
movem.l d0-d7/a0-a4,52(a6)
movem.l (a5)+,d0-d7/a0-a4
movem.l d0-d7/a0-a4,104(a6)
movem.l (a5)+,d0-d7/a0-a4
movem.l d0-d7/a0-a4,156(a6) ;4*13*4=208:1 line copied
lea 230(a6),a6 ;next line
lea 22(a5),a5
endr
move.l a6,cpybufdest ;position to write during next vbl
cmp.l #scrnadrs+4,nextscrn
bne.s notreset
move.l #screen-(15*230)+160*6,cpybufdest
notreset:
;**********************************************************
@ -1631,6 +1655,7 @@ cpy25: ;9,9,9,9,9,5+2
hwbounceptr: dc.l hwbouncetab
hwbouncetab:
dc.w 230*16,230*16
dc.w 0
dc.w 230*15,230*15
dc.w 230*14,230*14
dc.w 230*13,230*12
@ -1644,7 +1669,6 @@ hwbouncetab:
dc.w 230*15,230*15
dc.w 230*16,230*16
dc.w 230*16,230*16
dc.w 0
scrnadrs:
dc.l screen+64400*0
dc.l screen+64400*1
@ -1701,12 +1725,15 @@ scrnadrs:
dc.l screen+64400*0+230*260
dc.l screen+64400*1+230*260
dc.l screen+64400*2+230*260
dc.l screen+64400*3+230*260
; dc.l screen+64400*3+230*260
; dc.l screen+64400*0+230*280
dc.l 0
font equ *-32*8
incbin "font.bin"
even
wavetab:
; dc.l byteschief,0
dc.l hops1
dc.l nix
dc.l nix
dc.l nix
@ -1722,6 +1749,7 @@ wavetab:
dc.l byteschief
dc.l byteschief
dc.l byteschief
dc.l byteschief
dc.l nix
dc.l nix
dc.l wordhinher
@ -1779,6 +1807,7 @@ byteschief:
dc.w 1,1,1,1,1,1,1,1
dc.w 1,1,1,1,1,1,1,1
dc.w 1,1,1,1,1,1,1,1,128
hops1: dc.w 1
nix: dc.w 0
dc.w 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
dc.w 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
@ -2003,7 +2032,7 @@ linebuffend:
ds.l 2*26*16+1+1+1
endr
ds.l 230*40
screen:
rept 5
ds.l 8000