Home » Archimedes archive » Acorn User » AU 1998-06 A.adf » Regulars » StarInfo/Brobecker/PainEpice
StarInfo/Brobecker/PainEpice
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » Archimedes archive » Acorn User » AU 1998-06 A.adf » Regulars |
| Filename: | StarInfo/Brobecker/PainEpice |
| Read OK: | ✔ |
| File size: | 0D56 bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
10REM>>> GingerBreadMan. (Xn+1=1-Yn+|Xn| & Yn+1=Xn)
20REM Alain BROBECKER (baah/Arm's Tech) on ??-Apr-1995
30
40REM==== BASIC CODE ===============================================
50MODE12:OFF:FORc%=1TO15:GCOL4,0:COLOURc%,c%*17,32+c%*9,32+c%*9:NEXTc%
60DIMv% 8:!v%=148:v%!4=-1:SYS"OS_ReadVduVariables",v%,v%
70A%=!v%+22*320
80DIMcode% 1024*4 :REMSpace for code.
90DIMB% 8 :REMWill contain coords.
100n%=24 :REMShift for zoom.
110u=8:v=5 :REMTranslation values.
120
130REPEAT
140 CLS
150 PRINTTAB(30,0);"- GingerBreadMan -"
160 PRINTTAB(74,0);"Baah."
170 PRINTTAB(34,1);"MMB to stop"
180 PROCasm
190 !B%=INT(-0.1*2^28):B%!4=0
200 C%=INT(u*2^(29-n%))
210 D%=INT(v*2^(28-n%))
220 REPEAT
230 MOUSEx,y,z
240 CALLpaindepice
250 UNTILz=2
260
270 z=0
280 WAIT:WAIT:WAIT:WAIT:WAIT:WAIT:WAIT:WAIT:WAIT:WAIT
290 PRINTTAB(0,1);"LMB to zoom in"
300 PRINTTAB(66,1);"RMB to reinit"
310 PRINTTAB(34,1);"MMB to quit"
320 RECTANGLEx-320,y-234,640,468
330 REPEAT
340 WAIT
350 RECTANGLEx-320,y-234,640,468
360 MOUSEx,y,z
370 RECTANGLEx-320,y-234,640,468
380 UNTILz<>0
390 IFz=1THENu=8:v=5:n%=24 :REMReinit values.
400 IFz=4THEN
410 u-=((x-320)*2^(n%-2))/2^28 :REM New translations values.
420 v-=((((1024-4*22)-y)-234)*2^(n%-2))/2^28
430 n%-=1 :REM New zoom.
440 ENDIF
450UNTILz=2
460END
470
480REM==== MACROS ====================================================
490REM This macro shades on point. I recommend you get a look at my
500REM small shadedots proggy for more comments.
510REM m0=videoram adress.
520REM m1=%111<<2.
530REM m2=1<<28.
540REM m3=max_value<<28
550REM m4=x
560REM m5=y
570REM m6-m8 are temporary registers. (We can choose m6=m4 and m7=m5)
580DEFFNshade(m0,m1,m2,m3,m4,m5,m6,m7,m8)
590[opt opt%
600 add m7,m5,m5,lsl #2 ; Make m7 points on good line.
610 add m7,m0,m7,lsl #6
620 mov m8,m4,lsr #3 ; m8=int(x/8).
630 bic m6,m1,m4,lsl #2 ; m6=4*(not(x) mod8)=shift.
640 ldr m8,[m7,m8,lsl #2]! ; m7=long adress | m8=long.
650 cmp m3,m8,lsl m6 ; Flags=max_value<<28-pixie<<28.
660 addHI m8,m8,m2,lsr m6 ; Shade if max_value higher than pixie,
670 strHI m8,[m7] ; and save the long back.
680]:=""
690
700REM==== ASM CODE =================================================
710DEFPROCasm
720FORopt%=0TO2STEP2:P%=code%:[opt opt%
730; This routine performs 4096 iterations of gingerbreadman.
740; Parameter r0=vram adress.
750; r1=points on x and y values.
760; r2=addx.
770; r3=addy.
780.paindepice
790 stmfd r13!,{r4-r11,r14}
800 ldmia r1,{r4-r5} ; Load x & y.
810 mov r6,#%111<<2 ; Used to calculate pixel shift.
820 mov r7,#1<<28 ; Used to decrement pixel in lword.
830 mov r8,#15<<28 ; Used in pixel shading.
840 mov r14,#4096 ; Perform 1024 iterations.
850.one_iteration
860 addS r10,r3,r5,asr #n% ; r10=(y+addy) asr #n%.
870 addGES r9,r2,r4,asr #n%-1 ; r9=(x+addx) asr #n%.
880 bMI clipped
890 cmp r10,#234
900 cmpMI r9,#640
910 bGE clipped
920 FNshade(0,6,7,8,9,10,9,10,11) ; Draw point.
930.clipped
940 rsb r9,r5,#1<<28 ; r9=1-yn.
950 movS r5,r4 ; r5=xn.
960 rsbMI r4,r4,#0 ; r4=abs(xn).
970 add r4,r4,r9 ; r4=1-yn+abs(xn).
980 subS r14,r14,#1 ; One iteration done.
990 bNE one_iteration
1000 stmia r1,{r4-r5} ; Save x & y back.
1010 ldmfd r13!,{r4-r11,pc}
1020]:NEXTopt%
1030ENDPROC
3�>>> GingerBreadMan. (Xn+1=1-Yn+|Xn| & Yn+1=Xn)
9� Alain BROBECKER (baah/Arm's Tech) on ??-Apr-1995
(D�==== BASIC CODE ===============================================
25�12:�:�c%=1�15:�4,0:�c%,c%*17,32+c%*9,32+c%*9:�c%
<7�v% 8:!v%=148:v%!4=-1:ș"OS_ReadVduVariables",v%,v%
FA%=!v%+22*320
P+�code% 1024*4 :�Space for code.
Z1�B% 8 :�Will contain coords.
d-n%=24 :�Shift for zoom.
n1u=8:v=5 :�Translation values.
x
��
� �
�! �30,0);"- GingerBreadMan -"
� �74,0);"Baah."
� �34,1);"MMB to stop"
� �asm
� !B%=�(-0.1*2^28):B%!4=0
� C%=�(u*2^(29-n%))
� D%=�(v*2^(28-n%))
� �
�
ȗx,y,z
� �paindepice
� �z=2
z=0
" Ȗ:Ȗ:Ȗ:Ȗ:Ȗ:Ȗ:Ȗ:Ȗ:Ȗ:Ȗ
" �0,1);"LMB to zoom in"
, �66,1);"RMB to reinit"
6 �34,1);"MMB to quit"
@ ȓx-320,y-234,640,468
J �
T Ȗ
^ ȓx-320,y-234,640,468
h
ȗx,y,z
r ȓx-320,y-234,640,468
|
�z<>0
�4 �z=1�u=8:v=5:n%=24 :�Reinit values.
�
�z=4�
�C u-=((x-320)*2^(n%-2))/2^28 :� New translations values.
�. v-=((((1024-4*22)-y)-234)*2^(n%-2))/2^28
�4 n%-=1 :� New zoom.
� �
��z=2
��
�
�E�==== MACROS ====================================================
�B� This macro shades on point. I recommend you get a look at my
�/� small shadedots proggy for more comments.
�� m0=videoram adress.
� m1=%111<<2.
� m2=1<<28.
� m3=max_value<<28
&
� m4=x
0
� m5=y
:D� m6-m8 are temporary registers. (We can choose m6=m4 and m7=m5)
D'ݤshade(m0,m1,m2,m3,m4,m5,m6,m7,m8)
N
[opt opt%
XF add m7,m5,m5,lsl #2 ; Make m7 points on good line.
b add m7,m0,m7,lsl #6
l6 mov m8,m4,lsr #3 ; m8=int(x/8).
vC bic m6,m1,m4,lsl #2 ; m6=4*(not(x) mod8)=shift.
�C ldr m8,[m7,m8,lsl #2]! ; m7=long adress | m8=long.
�H cmp m3,m8,lsl m6 ; Flags=max_value<<28-pixie<<28.
�O addHI m8,m8,m2,lsr m6 ; Shade if max_value higher than pixie,
�C strHI m8,[m7] ; and save the long back.
� ]:=""
�
�D�==== ASM CODE =================================================
� ��asm
�"�opt%=0�2�2:P%=code%:[opt opt%
�>; This routine performs 4096 iterations of gingerbreadman.
� ; Parameter r0=vram adress.
�,; r1=points on x and y values.
�; r2=addx.
; r3=addy.
.paindepice
stmfd r13!,{r4-r11,r14}
/ ldmia r1,{r4-r5} ; Load x & y.
*B mov r6,#%111<<2 ; Used to calculate pixel shift.
4E mov r7,#1<<28 ; Used to decrement pixel in lword.
>< mov r8,#15<<28 ; Used in pixel shading.
H< mov r14,#4096 ; Perform 1024 iterations.
R.one_iteration
\9 addS r10,r3,r5,asr #n% ; r10=(y+addy) asr #n%.
f8 addGES r9,r2,r4,asr #n%-1 ; r9=(x+addx) asr #n%.
p bMI clipped
z cmp r10,#234
� cmpMI r9,#640
� bGE clipped
�0 �shade(0,6,7,8,9,10,9,10,11) ; Draw point.
� .clipped
�, rsb r9,r5,#1<<28 ; r9=1-yn.
�* movS r5,r4 ; r5=xn.
�/ rsbMI r4,r4,#0 ; r4=abs(xn).
�4 add r4,r4,r9 ; r4=1-yn+abs(xn).
�7 subS r14,r14,#1 ; One iteration done.
� bNE one_iteration
�4 stmia r1,{r4-r5} ; Save x & y back.
� ldmfd r13!,{r4-r11,pc}
� ]:�opt%
�
� 00000000 0d 00 0a 33 f4 3e 3e 3e 20 47 69 6e 67 65 72 42 |...3.>>> GingerB|
00000010 72 65 61 64 4d 61 6e 2e 20 28 58 6e 2b 31 3d 31 |readMan. (Xn+1=1|
00000020 2d 59 6e 2b 7c 58 6e 7c 20 26 20 59 6e 2b 31 3d |-Yn+|Xn| & Yn+1=|
00000030 58 6e 29 0d 00 14 39 f4 20 20 20 20 41 6c 61 69 |Xn)...9. Alai|
00000040 6e 20 42 52 4f 42 45 43 4b 45 52 20 28 62 61 61 |n BROBECKER (baa|
00000050 68 2f 41 72 6d 27 73 20 54 65 63 68 29 20 6f 6e |h/Arm's Tech) on|
00000060 20 3f 3f 2d 41 70 72 2d 31 39 39 35 0d 00 1e 04 | ??-Apr-1995....|
00000070 0d 00 28 44 f4 3d 3d 3d 3d 20 42 41 53 49 43 20 |..(D.==== BASIC |
00000080 43 4f 44 45 20 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d |CODE ===========|
00000090 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d |================|
*
000000b0 3d 3d 3d 3d 0d 00 32 35 eb 31 32 3a 87 3a e3 63 |====..25.12:.:.c|
000000c0 25 3d 31 b8 31 35 3a e6 34 2c 30 3a fb 63 25 2c |%=1.15:.4,0:.c%,|
000000d0 63 25 2a 31 37 2c 33 32 2b 63 25 2a 39 2c 33 32 |c%*17,32+c%*9,32|
000000e0 2b 63 25 2a 39 3a ed 63 25 0d 00 3c 37 de 76 25 |+c%*9:.c%..<7.v%|
000000f0 20 38 3a 21 76 25 3d 31 34 38 3a 76 25 21 34 3d | 8:!v%=148:v%!4=|
00000100 2d 31 3a c8 99 22 4f 53 5f 52 65 61 64 56 64 75 |-1:.."OS_ReadVdu|
00000110 56 61 72 69 61 62 6c 65 73 22 2c 76 25 2c 76 25 |Variables",v%,v%|
00000120 0d 00 46 11 41 25 3d 21 76 25 2b 32 32 2a 33 32 |..F.A%=!v%+22*32|
00000130 30 0d 00 50 2b de 63 6f 64 65 25 20 31 30 32 34 |0..P+.code% 1024|
00000140 2a 34 20 20 20 20 20 20 20 20 20 3a f4 53 70 61 |*4 :.Spa|
00000150 63 65 20 66 6f 72 20 63 6f 64 65 2e 0d 00 5a 31 |ce for code...Z1|
00000160 de 42 25 20 38 20 20 20 20 20 20 20 20 20 20 20 |.B% 8 |
00000170 20 20 20 20 20 20 3a f4 57 69 6c 6c 20 63 6f 6e | :.Will con|
00000180 74 61 69 6e 20 63 6f 6f 72 64 73 2e 20 0d 00 64 |tain coords. ..d|
00000190 2d 6e 25 3d 32 34 20 20 20 20 20 20 20 20 20 20 |-n%=24 |
000001a0 20 20 20 20 20 20 20 20 20 3a f4 53 68 69 66 74 | :.Shift|
000001b0 20 66 6f 72 20 7a 6f 6f 6d 2e 0d 00 6e 31 75 3d | for zoom...n1u=|
000001c0 38 3a 76 3d 35 20 20 20 20 20 20 20 20 20 20 20 |8:v=5 |
000001d0 20 20 20 20 20 20 3a f4 54 72 61 6e 73 6c 61 74 | :.Translat|
000001e0 69 6f 6e 20 76 61 6c 75 65 73 2e 0d 00 78 04 0d |ion values...x..|
000001f0 00 82 05 f5 0d 00 8c 06 20 db 0d 00 96 21 20 f1 |........ ....! .|
00000200 8a 33 30 2c 30 29 3b 22 2d 20 47 69 6e 67 65 72 |.30,0);"- Ginger|
00000210 42 72 65 61 64 4d 61 6e 20 2d 22 0d 00 a0 14 20 |BreadMan -".... |
00000220 f1 8a 37 34 2c 30 29 3b 22 42 61 61 68 2e 22 0d |..74,0);"Baah.".|
00000230 00 aa 1a 20 f1 8a 33 34 2c 31 29 3b 22 4d 4d 42 |... ..34,1);"MMB|
00000240 20 74 6f 20 73 74 6f 70 22 0d 00 b4 09 20 f2 61 | to stop".... .a|
00000250 73 6d 0d 00 be 1c 20 21 42 25 3d a8 28 2d 30 2e |sm.... !B%=.(-0.|
00000260 31 2a 32 5e 32 38 29 3a 42 25 21 34 3d 30 0d 00 |1*2^28):B%!4=0..|
00000270 c8 16 20 43 25 3d a8 28 75 2a 32 5e 28 32 39 2d |.. C%=.(u*2^(29-|
00000280 6e 25 29 29 0d 00 d2 16 20 44 25 3d a8 28 76 2a |n%)).... D%=.(v*|
00000290 32 5e 28 32 38 2d 6e 25 29 29 0d 00 dc 06 20 f5 |2^(28-n%)).... .|
000002a0 0d 00 e6 0d 20 20 c8 97 78 2c 79 2c 7a 0d 00 f0 |.... ..x,y,z...|
000002b0 11 20 20 d6 70 61 69 6e 64 65 70 69 63 65 0d 00 |. .paindepice..|
000002c0 fa 09 20 fd 7a 3d 32 0d 01 04 04 0d 01 0e 08 20 |.. .z=2........ |
000002d0 7a 3d 30 0d 01 18 22 20 c8 96 3a c8 96 3a c8 96 |z=0..." ..:..:..|
000002e0 3a c8 96 3a c8 96 3a c8 96 3a c8 96 3a c8 96 3a |:..:..:..:..:..:|
000002f0 c8 96 3a c8 96 0d 01 22 1c 20 f1 8a 30 2c 31 29 |..:....". ..0,1)|
00000300 3b 22 4c 4d 42 20 74 6f 20 7a 6f 6f 6d 20 69 6e |;"LMB to zoom in|
00000310 22 0d 01 2c 1c 20 f1 8a 36 36 2c 31 29 3b 22 52 |"..,. ..66,1);"R|
00000320 4d 42 20 74 6f 20 72 65 69 6e 69 74 22 0d 01 36 |MB to reinit"..6|
00000330 1a 20 f1 8a 33 34 2c 31 29 3b 22 4d 4d 42 20 74 |. ..34,1);"MMB t|
00000340 6f 20 71 75 69 74 22 0d 01 40 1a 20 c8 93 78 2d |o quit"..@. ..x-|
00000350 33 32 30 2c 79 2d 32 33 34 2c 36 34 30 2c 34 36 |320,y-234,640,46|
00000360 38 0d 01 4a 06 20 f5 0d 01 54 08 20 20 c8 96 0d |8..J. ...T. ...|
00000370 01 5e 1b 20 20 c8 93 78 2d 33 32 30 2c 79 2d 32 |.^. ..x-320,y-2|
00000380 33 34 2c 36 34 30 2c 34 36 38 0d 01 68 0d 20 20 |34,640,468..h. |
00000390 c8 97 78 2c 79 2c 7a 0d 01 72 1b 20 20 c8 93 78 |..x,y,z..r. ..x|
000003a0 2d 33 32 30 2c 79 2d 32 33 34 2c 36 34 30 2c 34 |-320,y-234,640,4|
000003b0 36 38 0d 01 7c 0a 20 fd 7a 3c 3e 30 0d 01 86 34 |68..|. .z<>0...4|
000003c0 20 e7 7a 3d 31 8c 75 3d 38 3a 76 3d 35 3a 6e 25 | .z=1.u=8:v=5:n%|
000003d0 3d 32 34 20 20 20 20 20 20 20 20 20 20 20 20 20 |=24 |
000003e0 3a f4 52 65 69 6e 69 74 20 76 61 6c 75 65 73 2e |:.Reinit values.|
000003f0 0d 01 90 0a 20 e7 7a 3d 34 8c 0d 01 9a 43 20 20 |.... .z=4....C |
00000400 75 2d 3d 28 28 78 2d 33 32 30 29 2a 32 5e 28 6e |u-=((x-320)*2^(n|
00000410 25 2d 32 29 29 2f 32 5e 32 38 20 20 20 20 20 20 |%-2))/2^28 |
00000420 20 20 3a f4 20 4e 65 77 20 74 72 61 6e 73 6c 61 | :. New transla|
00000430 74 69 6f 6e 73 20 76 61 6c 75 65 73 2e 0d 01 a4 |tions values....|
00000440 2e 20 20 76 2d 3d 28 28 28 28 31 30 32 34 2d 34 |. v-=((((1024-4|
00000450 2a 32 32 29 2d 79 29 2d 32 33 34 29 2a 32 5e 28 |*22)-y)-234)*2^(|
00000460 6e 25 2d 32 29 29 2f 32 5e 32 38 0d 01 ae 34 20 |n%-2))/2^28...4 |
00000470 20 6e 25 2d 3d 31 20 20 20 20 20 20 20 20 20 20 | n%-=1 |
00000480 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
00000490 20 20 20 3a f4 20 4e 65 77 20 7a 6f 6f 6d 2e 0d | :. New zoom..|
000004a0 01 b8 06 20 cd 0d 01 c2 08 fd 7a 3d 32 0d 01 cc |... ......z=2...|
000004b0 05 e0 0d 01 d6 04 0d 01 e0 45 f4 3d 3d 3d 3d 20 |.........E.==== |
000004c0 4d 41 43 52 4f 53 20 3d 3d 3d 3d 3d 3d 3d 3d 3d |MACROS =========|
000004d0 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d |================|
*
000004f0 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 0d 01 ea 42 f4 |===========...B.|
00000500 20 54 68 69 73 20 6d 61 63 72 6f 20 73 68 61 64 | This macro shad|
00000510 65 73 20 6f 6e 20 70 6f 69 6e 74 2e 20 49 20 72 |es on point. I r|
00000520 65 63 6f 6d 6d 65 6e 64 20 79 6f 75 20 67 65 74 |ecommend you get|
00000530 20 61 20 6c 6f 6f 6b 20 61 74 20 6d 79 0d 01 f4 | a look at my...|
00000540 2f f4 20 73 6d 61 6c 6c 20 73 68 61 64 65 64 6f |/. small shadedo|
00000550 74 73 20 70 72 6f 67 67 79 20 66 6f 72 20 6d 6f |ts proggy for mo|
00000560 72 65 20 63 6f 6d 6d 65 6e 74 73 2e 0d 01 fe 19 |re comments.....|
00000570 f4 20 6d 30 3d 76 69 64 65 6f 72 61 6d 20 61 64 |. m0=videoram ad|
00000580 72 65 73 73 2e 0d 02 08 11 f4 20 6d 31 3d 25 31 |ress...... m1=%1|
00000590 31 31 3c 3c 32 2e 0d 02 12 0f f4 20 6d 32 3d 31 |11<<2...... m2=1|
000005a0 3c 3c 32 38 2e 0d 02 1c 16 f4 20 6d 33 3d 6d 61 |<<28...... m3=ma|
000005b0 78 5f 76 61 6c 75 65 3c 3c 32 38 0d 02 26 0a f4 |x_value<<28..&..|
000005c0 20 6d 34 3d 78 0d 02 30 0a f4 20 6d 35 3d 79 0d | m4=x..0.. m5=y.|
000005d0 02 3a 44 f4 20 6d 36 2d 6d 38 20 61 72 65 20 74 |.:D. m6-m8 are t|
000005e0 65 6d 70 6f 72 61 72 79 20 72 65 67 69 73 74 65 |emporary registe|
000005f0 72 73 2e 20 28 57 65 20 63 61 6e 20 63 68 6f 6f |rs. (We can choo|
00000600 73 65 20 6d 36 3d 6d 34 20 61 6e 64 20 6d 37 3d |se m6=m4 and m7=|
00000610 6d 35 29 0d 02 44 27 dd a4 73 68 61 64 65 28 6d |m5)..D'..shade(m|
00000620 30 2c 6d 31 2c 6d 32 2c 6d 33 2c 6d 34 2c 6d 35 |0,m1,m2,m3,m4,m5|
00000630 2c 6d 36 2c 6d 37 2c 6d 38 29 0d 02 4e 0d 5b 6f |,m6,m7,m8)..N.[o|
00000640 70 74 20 6f 70 74 25 0d 02 58 46 20 20 61 64 64 |pt opt%..XF add|
00000650 20 20 20 20 20 20 20 6d 37 2c 6d 35 2c 6d 35 2c | m7,m5,m5,|
00000660 6c 73 6c 20 23 32 20 20 20 20 20 20 20 20 20 3b |lsl #2 ;|
00000670 20 4d 61 6b 65 20 6d 37 20 70 6f 69 6e 74 73 20 | Make m7 points |
00000680 6f 6e 20 67 6f 6f 64 20 6c 69 6e 65 2e 0d 02 62 |on good line...b|
00000690 1f 20 20 61 64 64 20 20 20 20 20 20 20 6d 37 2c |. add m7,|
000006a0 6d 30 2c 6d 37 2c 6c 73 6c 20 23 36 0d 02 6c 36 |m0,m7,lsl #6..l6|
000006b0 20 20 6d 6f 76 20 20 20 20 20 20 20 6d 38 2c 6d | mov m8,m|
000006c0 34 2c 6c 73 72 20 23 33 20 20 20 20 20 20 20 20 |4,lsr #3 |
000006d0 20 20 20 20 3b 20 6d 38 3d 69 6e 74 28 78 2f 38 | ; m8=int(x/8|
000006e0 29 2e 0d 02 76 43 20 20 62 69 63 20 20 20 20 20 |)...vC bic |
000006f0 20 20 6d 36 2c 6d 31 2c 6d 34 2c 6c 73 6c 20 23 | m6,m1,m4,lsl #|
00000700 32 20 20 20 20 20 20 20 20 20 3b 20 6d 36 3d 34 |2 ; m6=4|
00000710 2a 28 6e 6f 74 28 78 29 20 6d 6f 64 38 29 3d 73 |*(not(x) mod8)=s|
00000720 68 69 66 74 2e 0d 02 80 43 20 20 6c 64 72 20 20 |hift....C ldr |
00000730 20 20 20 20 20 6d 38 2c 5b 6d 37 2c 6d 38 2c 6c | m8,[m7,m8,l|
00000740 73 6c 20 23 32 5d 21 20 20 20 20 20 20 3b 20 6d |sl #2]! ; m|
00000750 37 3d 6c 6f 6e 67 20 61 64 72 65 73 73 20 7c 20 |7=long adress | |
00000760 6d 38 3d 6c 6f 6e 67 2e 0d 02 8a 48 20 20 63 6d |m8=long....H cm|
00000770 70 20 20 20 20 20 20 20 6d 33 2c 6d 38 2c 6c 73 |p m3,m8,ls|
00000780 6c 20 6d 36 20 20 20 20 20 20 20 20 20 20 20 20 |l m6 |
00000790 3b 20 46 6c 61 67 73 3d 6d 61 78 5f 76 61 6c 75 |; Flags=max_valu|
000007a0 65 3c 3c 32 38 2d 70 69 78 69 65 3c 3c 32 38 2e |e<<28-pixie<<28.|
000007b0 0d 02 94 4f 20 20 61 64 64 48 49 20 20 20 20 20 |...O addHI |
000007c0 6d 38 2c 6d 38 2c 6d 32 2c 6c 73 72 20 6d 36 20 |m8,m8,m2,lsr m6 |
000007d0 20 20 20 20 20 20 20 20 3b 20 53 68 61 64 65 20 | ; Shade |
000007e0 69 66 20 6d 61 78 5f 76 61 6c 75 65 20 68 69 67 |if max_value hig|
000007f0 68 65 72 20 74 68 61 6e 20 70 69 78 69 65 2c 0d |her than pixie,.|
00000800 02 9e 43 20 20 73 74 72 48 49 20 20 20 20 20 6d |..C strHI m|
00000810 38 2c 5b 6d 37 5d 20 20 20 20 20 20 20 20 20 20 |8,[m7] |
00000820 20 20 20 20 20 20 20 3b 20 20 20 61 6e 64 20 73 | ; and s|
00000830 61 76 65 20 74 68 65 20 6c 6f 6e 67 20 62 61 63 |ave the long bac|
00000840 6b 2e 0d 02 a8 09 5d 3a 3d 22 22 0d 02 b2 04 0d |k.....]:="".....|
00000850 02 bc 44 f4 3d 3d 3d 3d 20 41 53 4d 20 43 4f 44 |..D.==== ASM COD|
00000860 45 20 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d |E ==============|
00000870 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d |================|
*
00000890 3d 3d 3d 0d 02 c6 09 dd f2 61 73 6d 0d 02 d0 22 |===......asm..."|
000008a0 e3 6f 70 74 25 3d 30 b8 32 88 32 3a 50 25 3d 63 |.opt%=0.2.2:P%=c|
000008b0 6f 64 65 25 3a 5b 6f 70 74 20 6f 70 74 25 0d 02 |ode%:[opt opt%..|
000008c0 da 3e 3b 20 54 68 69 73 20 72 6f 75 74 69 6e 65 |.>; This routine|
000008d0 20 70 65 72 66 6f 72 6d 73 20 34 30 39 36 20 69 | performs 4096 i|
000008e0 74 65 72 61 74 69 6f 6e 73 20 6f 66 20 67 69 6e |terations of gin|
000008f0 67 65 72 62 72 65 61 64 6d 61 6e 2e 0d 02 e4 1f |gerbreadman.....|
00000900 3b 20 50 61 72 61 6d 65 74 65 72 20 72 30 3d 76 |; Parameter r0=v|
00000910 72 61 6d 20 61 64 72 65 73 73 2e 0d 02 ee 2c 3b |ram adress....,;|
00000920 20 20 20 20 20 20 20 20 20 20 20 72 31 3d 70 6f | r1=po|
00000930 69 6e 74 73 20 6f 6e 20 78 20 61 6e 64 20 79 20 |ints on x and y |
00000940 76 61 6c 75 65 73 2e 0d 02 f8 18 3b 20 20 20 20 |values.....; |
00000950 20 20 20 20 20 20 20 72 32 3d 61 64 64 78 2e 0d | r2=addx..|
00000960 03 02 18 3b 20 20 20 20 20 20 20 20 20 20 20 72 |...; r|
00000970 33 3d 61 64 64 79 2e 0d 03 0c 0f 2e 70 61 69 6e |3=addy......pain|
00000980 64 65 70 69 63 65 0d 03 16 1f 20 20 73 74 6d 66 |depice.... stmf|
00000990 64 20 20 20 72 31 33 21 2c 7b 72 34 2d 72 31 31 |d r13!,{r4-r11|
000009a0 2c 72 31 34 7d 0d 03 20 2f 20 20 6c 64 6d 69 61 |,r14}.. / ldmia|
000009b0 20 20 20 72 31 2c 7b 72 34 2d 72 35 7d 20 20 20 | r1,{r4-r5} |
000009c0 20 20 20 20 20 20 20 3b 20 4c 6f 61 64 20 78 20 | ; Load x |
000009d0 26 20 79 2e 0d 03 2a 42 20 20 6d 6f 76 20 20 20 |& y...*B mov |
000009e0 20 20 72 36 2c 23 25 31 31 31 3c 3c 32 20 20 20 | r6,#%111<<2 |
000009f0 20 20 20 20 20 20 3b 20 55 73 65 64 20 74 6f 20 | ; Used to |
00000a00 63 61 6c 63 75 6c 61 74 65 20 70 69 78 65 6c 20 |calculate pixel |
00000a10 73 68 69 66 74 2e 0d 03 34 45 20 20 6d 6f 76 20 |shift...4E mov |
00000a20 20 20 20 20 72 37 2c 23 31 3c 3c 32 38 20 20 20 | r7,#1<<28 |
00000a30 20 20 20 20 20 20 20 20 3b 20 55 73 65 64 20 74 | ; Used t|
00000a40 6f 20 64 65 63 72 65 6d 65 6e 74 20 70 69 78 65 |o decrement pixe|
00000a50 6c 20 69 6e 20 6c 77 6f 72 64 2e 0d 03 3e 3c 20 |l in lword...>< |
00000a60 20 6d 6f 76 20 20 20 20 20 72 38 2c 23 31 35 3c | mov r8,#15<|
00000a70 3c 32 38 20 20 20 20 20 20 20 20 20 20 3b 20 55 |<28 ; U|
00000a80 73 65 64 20 69 6e 20 70 69 78 65 6c 20 73 68 61 |sed in pixel sha|
00000a90 64 69 6e 67 2e 20 20 0d 03 48 3c 20 20 6d 6f 76 |ding. ..H< mov|
00000aa0 20 20 20 20 20 72 31 34 2c 23 34 30 39 36 20 20 | r14,#4096 |
00000ab0 20 20 20 20 20 20 20 20 20 3b 20 50 65 72 66 6f | ; Perfo|
00000ac0 72 6d 20 31 30 32 34 20 69 74 65 72 61 74 69 6f |rm 1024 iteratio|
00000ad0 6e 73 2e 0d 03 52 12 2e 6f 6e 65 5f 69 74 65 72 |ns...R..one_iter|
00000ae0 61 74 69 6f 6e 0d 03 5c 39 20 20 61 64 64 53 20 |ation..\9 addS |
00000af0 20 20 20 72 31 30 2c 72 33 2c 72 35 2c 61 73 72 | r10,r3,r5,asr|
00000b00 20 23 6e 25 20 20 20 3b 20 72 31 30 3d 28 79 2b | #n% ; r10=(y+|
00000b10 61 64 64 79 29 20 61 73 72 20 23 6e 25 2e 0d 03 |addy) asr #n%...|
00000b20 66 38 20 20 61 64 64 47 45 53 20 20 72 39 2c 72 |f8 addGES r9,r|
00000b30 32 2c 72 34 2c 61 73 72 20 23 6e 25 2d 31 20 20 |2,r4,asr #n%-1 |
00000b40 3b 20 72 39 3d 28 78 2b 61 64 64 78 29 20 61 73 |; r9=(x+addx) as|
00000b50 72 20 23 6e 25 2e 0d 03 70 15 20 20 62 4d 49 20 |r #n%...p. bMI |
00000b60 20 20 20 20 63 6c 69 70 70 65 64 0d 03 7a 16 20 | clipped..z. |
00000b70 20 63 6d 70 20 20 20 20 20 72 31 30 2c 23 32 33 | cmp r10,#23|
00000b80 34 0d 03 84 15 20 20 63 6d 70 4d 49 20 20 20 72 |4.... cmpMI r|
00000b90 39 2c 23 36 34 30 0d 03 8e 15 20 20 62 47 45 20 |9,#640.... bGE |
00000ba0 20 20 20 20 63 6c 69 70 70 65 64 0d 03 98 30 20 | clipped...0 |
00000bb0 20 a4 73 68 61 64 65 28 30 2c 36 2c 37 2c 38 2c | .shade(0,6,7,8,|
00000bc0 39 2c 31 30 2c 39 2c 31 30 2c 31 31 29 20 3b 20 |9,10,9,10,11) ; |
00000bd0 44 72 61 77 20 70 6f 69 6e 74 2e 0d 03 a2 0c 2e |Draw point......|
00000be0 63 6c 69 70 70 65 64 0d 03 ac 2c 20 20 72 73 62 |clipped..., rsb|
00000bf0 20 20 20 20 20 72 39 2c 72 35 2c 23 31 3c 3c 32 | r9,r5,#1<<2|
00000c00 38 20 20 20 20 20 20 20 20 3b 20 72 39 3d 31 2d |8 ; r9=1-|
00000c10 79 6e 2e 0d 03 b6 2a 20 20 6d 6f 76 53 20 20 20 |yn....* movS |
00000c20 20 72 35 2c 72 34 20 20 20 20 20 20 20 20 20 20 | r5,r4 |
00000c30 20 20 20 20 20 3b 20 72 35 3d 78 6e 2e 0d 03 c0 | ; r5=xn....|
00000c40 2f 20 20 72 73 62 4d 49 20 20 20 72 34 2c 72 34 |/ rsbMI r4,r4|
00000c50 2c 23 30 20 20 20 20 20 20 20 20 20 20 20 20 3b |,#0 ;|
00000c60 20 72 34 3d 61 62 73 28 78 6e 29 2e 0d 03 ca 34 | r4=abs(xn)....4|
00000c70 20 20 61 64 64 20 20 20 20 20 72 34 2c 72 34 2c | add r4,r4,|
00000c80 72 39 20 20 20 20 20 20 20 20 20 20 20 20 3b 20 |r9 ; |
00000c90 72 34 3d 31 2d 79 6e 2b 61 62 73 28 78 6e 29 2e |r4=1-yn+abs(xn).|
00000ca0 0d 03 d4 37 20 20 73 75 62 53 20 20 20 20 72 31 |...7 subS r1|
00000cb0 34 2c 72 31 34 2c 23 31 20 20 20 20 20 20 20 20 |4,r14,#1 |
00000cc0 20 20 3b 20 4f 6e 65 20 69 74 65 72 61 74 69 6f | ; One iteratio|
00000cd0 6e 20 64 6f 6e 65 2e 0d 03 de 1b 20 20 62 4e 45 |n done..... bNE|
00000ce0 20 20 20 20 20 6f 6e 65 5f 69 74 65 72 61 74 69 | one_iterati|
00000cf0 6f 6e 0d 03 e8 34 20 20 73 74 6d 69 61 20 20 20 |on...4 stmia |
00000d00 72 31 2c 7b 72 34 2d 72 35 7d 20 20 20 20 20 20 |r1,{r4-r5} |
00000d10 20 20 20 20 3b 20 53 61 76 65 20 78 20 26 20 79 | ; Save x & y|
00000d20 20 62 61 63 6b 2e 0d 03 f2 1e 20 20 6c 64 6d 66 | back..... ldmf|
00000d30 64 20 20 20 72 31 33 21 2c 7b 72 34 2d 72 31 31 |d r13!,{r4-r11|
00000d40 2c 70 63 7d 0d 03 fc 0b 5d 3a ed 6f 70 74 25 0d |,pc}....]:.opt%.|
00000d50 04 06 05 e1 0d ff |......|
00000d56 
.