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DiffDim/Triangle3b
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 » Recent acquisitions » Acorn ADFS disks » adfs_AcornUser_199801_2.adf » Features |
| Filename: | DiffDim/Triangle3b |
| Read OK: | ✔ |
| File size: | 208B bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
10REM Triangle 3b for VIDC1 machines
20REM
30REM Demonstrate texture mapping with triangles
40:
50ON ERROR MODE0:PRINT REPORT$;" at line ";ERL:END
60MODE 13:OFF
70PROCassemble
80CALL setup
90DIM x%(3),y%(3)
100x%()=100,100,700,700
110y%()=700,100,700,100
120:
130bk%=1
140PROCdraw
150PROCdraw
160MOUSE ON
170REPEAT
180REPEAT
190MOUSE mx%,my%,b%
200UNTIL b%=4
210:
220i%=-1:md%=10000
230FORn%=0 TO 3
240dx%=mx%-x%(n%):dy%=my%-y%(n%)
250d%=dx%*dx%+dy%*dy%
260IF d%<md% md%=d%:i%=n%
270NEXT
280IF i%<>-1 THEN PROCchange(i%)
290UNTIL FALSE
300END
310:
320DEFPROCchange(i%)
330REPEAT
340MOUSE x%(i%),y%(i%),b%
350PROCdraw
360UNTIL b%=0
370PROCdraw
380ENDPROC
390:
400DEFPROCdraw
410SYS"OS_Byte",112,bk%
420SWAP !screenadr,screenadr!4
430bk%=3-bk%
440WAIT
450SYS"OS_Byte",113,bk%
460CLS
470ax%=x%(0)>>2:ay%=256-(y%(0)>>2)
480bx%=x%(1)>>2:by%=256-(y%(1)>>2)
490cx%=x%(2)>>2:cy%=256-(y%(2)>>2)
500dx%=x%(3)>>2:dy%=256-(y%(3)>>2)
510REM First triangle
520IF bx%*cy%+cx%*ay%+ax%*by%>bx%*ay%+cx%*by%+ax%*cy% THEN
530 !ax=ax%:!ay=ay%:!au=0:!av=0
540 !bx=bx%:!by=by%:!bu=0:!bv=255
550 !cx=cx%:!cy=cy%:!cu=255:!cv=0
560ELSE
570 !ax=bx%:!ay=by%:!au=0:!av=255
580 !bx=ax%:!by=ay%:!bu=0:!bv=0
590 !cx=cx%:!cy=cy%:!cu=255:!cv=0
600ENDIF
610CALL texture_triangle
620
630REM Second triangle
640IF bx%*cy%+cx%*dy%+dx%*by%>bx%*dy%+cx%*by%+dx%*cy% THEN
650 !ax=dx%:!ay=dy%:!au=255:!av=255
660 !bx=bx%:!by=by%:!bu=0:!bv=255
670 !cx=cx%:!cy=cy%:!cu=255:!cv=0
680ELSE
690 !ax=bx%:!ay=by%:!au=0:!av=255
700 !bx=dx%:!by=dy%:!bu=255:!bv=255
710 !cx=cx%:!cy=cy%:!cu=255:!cv=0
720ENDIF
730CALL texture_triangle
740
750REM Draw control handles
760FORn%=0 TO 3
770CIRCLE x%(n%),y%(n%),8
780NEXT
790ENDPROC
800:
810DEFPROCassemble
820q_step%=16:sstep%=256/q_step%
830log2_q_step%=LOG(q_step%)/LOG(2)
840DIM code% 16384,div_table% 32768*4,sprite% 65592
850FOR pass%=0 TO 2 STEP 2
860P%=code%
870[OPT pass%
880.setup
890ldr r0,div_table ; build divide lookup table
900mov r2,#1
910
920.dl
930mov r4,#1<<20
940mov r5,#0 ; remainder
950mov r6,#0 ; quotient
960mov r7,#1<<31
970.div_loop
980movs r4,r4,lsl#1
990adc r5,r5,r5
1000cmp r5,r2
1010subge r5,r5,r2
1020orrge r6,r6,r7
1030movs r7,r7,lsr#1
1040bne div_loop
1050
1060; r6 = r4 div r2 = s
1070
1080str r6,[r0,#4]!
1090add r2,r2,#1
1100cmp r2,#32768
1110ble dl
1120
1130mov pc,r14
1140
1150.div_table
1160dcd div_table%
1170
1180
1190.stackp
1200dcd 0
1210.link
1220dcd 0
1230.div_table
1240dcd div_table%
1250.r_index
1260dcd 0
1270.l_index
1280dcd 0
1290
1300.y_end
1310dcd 0
1320
1330.sprite
1340dcd sprite%+56
1350.screenadr
1360dcd FNscreenadr(2)
1370dcd FNscreenadr(1)
1380
1390.ay:dcd 0:.ax:dcd 0
1400.ac:dcd 255
1410.au:dcd 0:.av:dcd 0
1420dcd 0:dcd 0:dcd 0
1430
1440.by:dcd 0:.bx:dcd 0
1450.bc:dcd 255
1460.bu:dcd 0:.bv:dcd 0
1470dcd 0:dcd 0:dcd 0
1480
1490.cy:dcd 0:.cx:dcd 0
1500.cc:dcd 255
1510.cu:dcd 0:.cv:dcd 0
1520dcd 0:dcd 0:dcd 0
1530
1540.texture_triangle
1550adr r0,ay
1560ldr r10,[r0,#0]
1570ldr r11,[r0,#32]
1580cmp r11,r10
1590movlt r1,r11
1600movge r1,r10
1610movlt r2,#1
1620movge r2,#0
1630ldr r12,[r0,#64]
1640cmp r12,r1
1650movlt r1,r12
1660movlt r2,#2
1670cmp r1,#256
1680movge pc,r14
1690cmp r10,#0
1700cmplt r11,#0
1710cmplt r12,#0
1720movlt pc,r14
1730
1740str r13,stackp
1750
1760subs r3,r2,#1
1770movlt r3,#2
1780
1790add r2,r0,r2,lsl#5
1800ldmib r2,{r5,r6,r7,r8} ; x_k,c_k,u_k,v_k
1810add r4,r0,r3,lsl#5
1820str r4,l_index
1830subs r3,r3,#1
1840movlt r3,#2
1850add r0,r0,r3,lsl#5
1860str r0,r_index
1870ldmia r4,{r9,r10,r11,r12,r13} ; y_l,x_l,c_l,u_l,v_l
1880
1890str r14,link
1900ldr r14,div_table
1910subs r2,r9,r1 ; dly
1920ldrgt r2,[r14,r2,lsl#2] ; 1<<20/dly
1930
1940movgt r3,r5,lsl#10
1950moveq r3,r10,lsl#10
1960subgt r4,r10,r5
1970mul r4,r2,r4 ; dlx<<20
1980str r4,dlx
1990
2000movgt r10,r7,lsl#10
2010moveq r10,r12,lsl#10
2020str r10,lu
2030subgt r4,r12,r7
2040mul r4,r2,r4 ; dlu<<20
2050str r4,dlu
2060
2070movgt r10,r8,lsl#10
2080moveq r10,r13,lsl#10
2090str r10,lv
2100subgt r4,r13,r8
2110mul r4,r2,r4 ; dlv<<20
2120str r4,dlv
2130
2140ldmia r0,{r0,r10,r11,r12,r13} ; y_r,x_r,c_r,u_r,v_r
2150subs r2,r0,r1 ; dry
2160ldrgt r2,[r14,r2,lsl#2] ; 1<<20/dry
2170
2180movgt r4,r5,lsl#10
2190moveq r4,r10,lsl#10
2200subgt r10,r10,r5
2210mul r10,r2,r10 ; drx<<20
2220str r10,drx
2230
2240movgt r10,r7,lsl#10
2250moveq r10,r12,lsl#10
2260str r10,ru
2270subgt r10,r12,r7
2280mul r10,r2,r10 ; dru<<20
2290str r10,dru
2300
2310movgt r10,r8,lsl#10
2320moveq r10,r13,lsl#10
2330str r10,rv
2340subgt r10,r13,r8
2350mul r10,r2,r10 ; drv<<20
2360str r10,drv
2370
2380ldr r2,screenadr
2390add r2,r2,r1,lsl#6
2400add r2,r2,r1,lsl#8 ; screen line
2410
2420MOV R14,R1
2430ldr r10,sprite
2440
2450cmp r9,r0
2460strlt r9,y_end
2470strge r0,y_end
2480
2490bgt method_2
2500beq last_bit
2510
2520.method_1 ; left_y<right_y
2530
2540FNyloop
2550
2560; r0 = y_l
2570; r2 = scline
2580; r3 = lx
2590; r4 = rx
2600; r1,r5-r14 = empty
2610
2620; recalcuate dlx,dlu,dlv,dlc
2630ldr r1,l_index
2640ldmib r1,{r3,r10,r11,r12} ; x_l,c_l,u_l,v_l
2650ldr r1,r_index
2660ldmia r1,{r1,r5,r6,r7,r8} ; y_r,x_r,c_r,u_r,v_r
2670str r1,y_end
2680
2690subs r1,r1,r0 ; dly
2700ldr r14,div_table
2710
2720ldrgt r1,[r14,r1,lsl#2] ; 1<<20/dly
2730subgt r7,r7,r11
2740mul r7,r1,r7 ; dlu<<20
2750str r7,dlu
2760subgt r5,r5,r3
2770mov r3,r3,lsl#10
2780mul r5,r1,r5 ; dlx<<20
2790str r5,dlx
2800
2810subgt r5,r8,r12
2820mul r5,r1,r5 ; dlv<<20
2830str r5,dlv
2840
2850ldr r10,sprite
2860
2870MOV R14,R0
2880.last_bit
2890FNyloop
2900
2910ldr r13,stackp
2920ldr r15,link
2930
2940
2950.method_2 ; right_y< left_y
2960FNyloop
2970
2980; r0 = y_l
2990; r2 = scline
3000; r3 = lx
3010; r4 = rx
3020; r1,r5-r14 = empty
3030
3040; recalcuate drx,dru,drv,drc
3050ldr r1,r_index
3060ldmib r1,{r4,r10,r11,r12} ; x_r,c_r,u_r,v_r
3070ldr r1,l_index
3080ldmia r1,{r1,r5,r6,r7,r8} ; y_l,x_l,c_l,u_l,v_l
3090str r1,y_end
3100
3110subs r1,r1,r0 ; dly
3120ldr r14,div_table
3130
3140ldrgt r1,[r14,r1,lsl#2] ; 1<<20/dly
3150subgt r5,r5,r4
3160mov r4,r4,lsl#10
3170mul r5,r1,r5 ; dlx<<20
3180str r5,drx
3190subgt r5,r7,r11
3200mul r5,r1,r5 ; dlu<<20
3210str r5,dru
3220subgt r5,r8,r12
3230mul r5,r1,r5 ; dlv<<20
3240str r5,drv
3250
3260ldr r10,sprite
3270MOV R14,R0
3280FNyloop
3290
3300ldr r13,stackp
3310ldr r15,link
3320
3330.line
3340dcd 0
3350
3360.coords
3370.lu:dcd 0:.ru:dcd 0
3380.lc:dcd 0:.rc:dcd 0
3390.lv:dcd 0:.rv:dcd 0
3400.dlx:dcd 0:.drx:dcd 0
3410.dlc:dcd 0:.drc:dcd 0
3420.dlu:dcd 0:.dru:dcd 0
3430.dlv:dcd 0:.drv:dcd 0
3440
3450]
3460NEXT
3470SYS"OS_File",16,"Picture",sprite%
3480ENDPROC
3490:
3500DEFFNyloop
3510[OPT pass%
3520; r2 = sc
3530; r3 = lx
3540; r4 = rx
3550; r14 = y_k
3560
3570.yloop
3580subs r0,r4,r3 ; dx<<10
3590add r12,r2,r3,asr#10 ; left adr
3600ldr r13,dlx
3610add r3,r3,r13,asr#10 ; lx+=dlx
3620ldr r11,drx
3630add r13,r2,r4,asr#10 ; right adr
3640add r4,r4,r11,asr#10 ; rx+=drx
3650ldr r11,div_table
3660mov r0,r0,asr#5
3670ldrgt r0,[r11,r0,lsl#2] ; 1<<18/dx
3680ldr r9,lu
3690ldr r8,ru
3700
3710sub r6,r8,r9 ; du<<10
3720mul r6,r0,r6 ; du<<24
3730
3740ldr r7,dru
3750add r8,r8,r7,asr#10
3760str r8,ru
3770
3780ldr r7,dlu
3790add r8,r9,r7,asr#10
3800str r8,lu
3810
3820ldr r8,lv
3830ldr r1,rv
3840sub r7,r1,r8 ; dv<<10
3850mul r7,r0,r7 ; dv<<21
3860ldr r0,drv
3870add r1,r1,r0,asr#10
3880str r1,rv
3890ldr r0,dlv
3900add r0,r8,r0,asr#10
3910str r0,lv
3920add r2,r2,#320
3930str r2,line
3940
3950mov r9,r9,lsl#14
3960mov r8,r8,lsl#14
3970mov r11,r11,lsl#14
3980
3990; dc = r5
4000; du = r6
4010; dv = r7
4020; v = r8
4030; u = r9
4040; sprite = r10
4050; c = r11
4060; left_adr = r12
4070; right_adr = r13
4080; r1 = col table
4090
4100.xloop
4110and r0,r8,#255<<24
4120orr r0,r0,r9,lsr#8
4130ldrb r0,[r10,r0,lsr#16]
4140strb r0,[r12],#1
4150cmp r12,r13
4160addle r2,r2,#1<<31
4170addle r8,r8,r7,asr#1
4180addle r9,r9,r6,asr#1
4190ble xloop
4200
4210ldr r2,line
4220ldr r0,y_end
4230add r14,r14,#1
4240cmp r14,r0
4250blt yloop
4260
4270]
4280=0
4290:
4300DEFFNscreenadr(bk%)
4310SYS"OS_Byte",112,bk%
4320SYS"OS_Byte",113,bk%
4330DIM q% 8
4340!q%=148:q%!4=-1
4350SYS"OS_ReadVduVariables",q%,q%
4360=!q%
$� Triangle 3b for VIDC1 machines
�
0� Demonstrate texture mapping with triangles
(:
2 � � �0:� �$;" at line ";�:�
<
� 13:�
F
�assemble
P � setup
Z� x%(3),y%(3)
dx%()=100,100,700,700
ny%()=700,100,700,100
x:
� bk%=1
� �draw
� �draw
�ȗ �
��
��
�ȗ mx%,my%,b%
�
� b%=4
�:
�i%=-1:md%=10000
�
�n%=0 � 3
�!dx%=mx%-x%(n%):dy%=my%-y%(n%)
�d%=dx%*dx%+dy%*dy%
� d%<md% md%=d%:i%=n%
�
� i%<>-1 � �change(i%)
"� �
,�
6:
@��change(i%)
J�
Tȗ x%(i%),y%(i%),b%
^ �draw
h
� b%=0
r �draw
|�
�:
�
��draw
�ș"OS_Byte",112,bk%
� Ȕ !screenadr,screenadr!4
�
bk%=3-bk%
�Ȗ
�ș"OS_Byte",113,bk%
��
�#ax%=x%(0)>>2:ay%=256-(y%(0)>>2)
�#bx%=x%(1)>>2:by%=256-(y%(1)>>2)
�#cx%=x%(2)>>2:cy%=256-(y%(2)>>2)
�#dx%=x%(3)>>2:dy%=256-(y%(3)>>2)
�� First triangle
7� bx%*cy%+cx%*ay%+ax%*by%>bx%*ay%+cx%*by%+ax%*cy% �
! !ax=ax%:!ay=ay%:!au=0:!av=0
# !bx=bx%:!by=by%:!bu=0:!bv=255
&# !cx=cx%:!cy=cy%:!cu=255:!cv=0
0�
:# !ax=bx%:!ay=by%:!au=0:!av=255
D! !bx=ax%:!by=ay%:!bu=0:!bv=0
N# !cx=cx%:!cy=cy%:!cu=255:!cv=0
X�
b� texture_triangle
l
v� Second triangle
�7� bx%*cy%+cx%*dy%+dx%*by%>bx%*dy%+cx%*by%+dx%*cy% �
�% !ax=dx%:!ay=dy%:!au=255:!av=255
�# !bx=bx%:!by=by%:!bu=0:!bv=255
�# !cx=cx%:!cy=cy%:!cu=255:!cv=0
��
�# !ax=bx%:!ay=by%:!au=0:!av=255
�% !bx=dx%:!by=dy%:!bu=255:!bv=255
�# !cx=cx%:!cy=cy%:!cu=255:!cv=0
��
�� texture_triangle
�
�� Draw control handles
�
�n%=0 � 3
ȏ x%(n%),y%(n%),8
�
�
:
*��assemble
4!q_step%=16:sstep%=256/q_step%
> log2_q_step%=�(q_step%)/�(2)
H2� code% 16384,div_table% 32768*4,sprite% 65592
R� pass%=0 � 2 � 2
\ P%=code%
f[OPT pass%
p
.setup
z7ldr r0,div_table ; build divide lookup table
�
mov r2,#1
�
�.dl
�mov r4,#1<<20
�'mov r5,#0 ; remainder
�&mov r6,#0 ; quotient
�mov r7,#1<<31
�
.div_loop
�movs r4,r4,lsl#1
�adc r5,r5,r5
�
cmp r5,r2
�subge r5,r5,r2
�orrge r6,r6,r7
movs r7,r7,lsr#1
bne div_loop
$; r6 = r4 div r2 = s
.
8str r6,[r0,#4]!
Badd r2,r2,#1
Lcmp r2,#32768
V
ble dl
`
jmov pc,r14
t
~.div_table
�dcd div_table%
�
�
� .stackp
� dcd 0
� .link
� dcd 0
�.div_table
�dcd div_table%
� .r_index
� dcd 0
� .l_index
dcd 0
.y_end
dcd 0
(
2 .sprite
<dcd sprite%+56
F.screenadr
Pdcd �screenadr(2)
Zdcd �screenadr(1)
d
n.ay:dcd 0:.ax:dcd 0
x.ac:dcd 255
�.au:dcd 0:.av:dcd 0
�dcd 0:dcd 0:dcd 0
�
�.by:dcd 0:.bx:dcd 0
�.bc:dcd 255
�.bu:dcd 0:.bv:dcd 0
�dcd 0:dcd 0:dcd 0
�
�.cy:dcd 0:.cx:dcd 0
�.cc:dcd 255
�.cu:dcd 0:.cv:dcd 0
�dcd 0:dcd 0:dcd 0
�
.texture_triangle
adr r0,ay
ldr r10,[r0,#0]
"ldr r11,[r0,#32]
,cmp r11,r10
6movlt r1,r11
@movge r1,r10
Jmovlt r2,#1
Tmovge r2,#0
^ldr r12,[r0,#64]
hcmp r12,r1
rmovlt r1,r12
|movlt r2,#2
�cmp r1,#256
�movge pc,r14
�cmp r10,#0
�cmplt r11,#0
�cmplt r12,#0
�movlt pc,r14
�
�str r13,stackp
�
�subs r3,r2,#1
�movlt r3,#2
�
�add r2,r0,r2,lsl#5
=ldmib r2,{r5,r6,r7,r8} ; x_k,c_k,u_k,v_k
add r4,r0,r3,lsl#5
str r4,l_index
&subs r3,r3,#1
0movlt r3,#2
:add r0,r0,r3,lsl#5
Dstr r0,r_index
NAldmia r4,{r9,r10,r11,r12,r13} ; y_l,x_l,c_l,u_l,v_l
X
bstr r14,link
lldr r14,div_table
v1subs r2,r9,r1 ; dly
�7ldrgt r2,[r14,r2,lsl#2] ; 1<<20/dly
�
�movgt r3,r5,lsl#10
�moveq r3,r10,lsl#10
�subgt r4,r10,r5
�5mul r4,r2,r4 ; dlx<<20
�str r4,dlx
�
�movgt r10,r7,lsl#10
�moveq r10,r12,lsl#10
�str r10,lu
�subgt r4,r12,r7
�5mul r4,r2,r4 ; dlu<<20
str r4,dlu
movgt r10,r8,lsl#10
moveq r10,r13,lsl#10
*str r10,lv
4subgt r4,r13,r8
>5mul r4,r2,r4 ; dlv<<20
Hstr r4,dlv
R
\Aldmia r0,{r0,r10,r11,r12,r13} ; y_r,x_r,c_r,u_r,v_r
f1subs r2,r0,r1 ; dry
p7ldrgt r2,[r14,r2,lsl#2] ; 1<<20/dry
z
�movgt r4,r5,lsl#10
�moveq r4,r10,lsl#10
�subgt r10,r10,r5
�5mul r10,r2,r10 ; drx<<20
�str r10,drx
�
�movgt r10,r7,lsl#10
�moveq r10,r12,lsl#10
�str r10,ru
�subgt r10,r12,r7
�5mul r10,r2,r10 ; dru<<20
�str r10,dru
�
movgt r10,r8,lsl#10
moveq r10,r13,lsl#10
str r10,rv
$subgt r10,r13,r8
.5mul r10,r2,r10 ; drv<<20
8str r10,drv
B
Lldr r2,screenadr
Vadd r2,r2,r1,lsl#6
`9add r2,r2,r1,lsl#8 ; screen line
j
tMOV R14,R1
~ldr r10,sprite
�
�
cmp r9,r0
�strlt r9,y_end
�strge r0,y_end
�
�bgt method_2
�beq last_bit
�
�<.method_1 ; left_y<right_y
�
�
�yloop
�
; r0 = y_l
; r2 = scline
; r3 = lx
; r4 = rx
(; r1,r5-r14 = empty
2
< ; recalcuate dlx,dlu,dlv,dlc
Fldr r1,l_index
P=ldmib r1,{r3,r10,r11,r12} ; x_l,c_l,u_l,v_l
Zldr r1,r_index
dAldmia r1,{r1,r5,r6,r7,r8} ; y_r,x_r,c_r,u_r,v_r
nstr r1,y_end
x
�1subs r1,r1,r0 ; dly
�ldr r14,div_table
�
�7ldrgt r1,[r14,r1,lsl#2] ; 1<<20/dly
�subgt r7,r7,r11
�5mul r7,r1,r7 ; dlu<<20
�str r7,dlu
�subgt r5,r5,r3
�mov r3,r3,lsl#10
�5mul r5,r1,r5 ; dlx<<20
�str r5,dlx
�
�subgt r5,r8,r12
5mul r5,r1,r5 ; dlv<<20
str r5,dlv
"ldr r10,sprite
,
6MOV R14,R0
@
.last_bit
J
�yloop
T
^ldr r13,stackp
hldr r15,link
r
|
�=.method_2 ; right_y< left_y
�
�yloop
�
�; r0 = y_l
�; r2 = scline
�
; r3 = lx
�
; r4 = rx
�; r1,r5-r14 = empty
�
� ; recalcuate drx,dru,drv,drc
�ldr r1,r_index
�=ldmib r1,{r4,r10,r11,r12} ; x_r,c_r,u_r,v_r
�ldr r1,l_index
Aldmia r1,{r1,r5,r6,r7,r8} ; y_l,x_l,c_l,u_l,v_l
str r1,y_end
&1subs r1,r1,r0 ; dly
0ldr r14,div_table
:
D7ldrgt r1,[r14,r1,lsl#2] ; 1<<20/dly
Nsubgt r5,r5,r4
Xmov r4,r4,lsl#10
b5mul r5,r1,r5 ; dlx<<20
lstr r5,drx
vsubgt r5,r7,r11
�5mul r5,r1,r5 ; dlu<<20
�str r5,dru
�subgt r5,r8,r12
�5mul r5,r1,r5 ; dlv<<20
�str r5,drv
�
�ldr r10,sprite
�MOV R14,R0
�
�yloop
�
�ldr r13,stackp
�ldr r15,link
�
.line
dcd 0
.coords
*.lu:dcd 0:.ru:dcd 0
4.lc:dcd 0:.rc:dcd 0
>.lv:dcd 0:.rv:dcd 0
H.dlx:dcd 0:.drx:dcd 0
R.dlc:dcd 0:.drc:dcd 0
\.dlu:dcd 0:.dru:dcd 0
f.dlv:dcd 0:.drv:dcd 0
p
z]
��
�$ș"OS_File",16,"Picture",sprite%
��
�:
� ݤyloop
�[OPT pass%
�
; r2 = sc
�
; r3 = lx
�
; r4 = rx
�; r14 = y_k
�
�
.yloop
�,subs r0,r4,r3 ; dx<<10
.add r12,r2,r3,asr#10 ; left adr
ldr r13,dlx
-add r3,r3,r13,asr#10 ; lx+=dlx
$ldr r11,drx
./add r13,r2,r4,asr#10 ; right adr
8-add r4,r4,r11,asr#10 ; rx+=drx
Bldr r11,div_table
Lmov r0,r0,asr#5
V.ldrgt r0,[r11,r0,lsl#2] ; 1<<18/dx
`
ldr r9,lu
j
ldr r8,ru
t
~,sub r6,r8,r9 ; du<<10
�,mul r6,r0,r6 ; du<<24
�
�ldr r7,dru
�add r8,r8,r7,asr#10
�
str r8,ru
�
�ldr r7,dlu
�add r8,r9,r7,asr#10
�
str r8,lu
�
�
ldr r8,lv
�
ldr r1,rv
,sub r7,r1,r8 ; dv<<10
,mul r7,r0,r7 ; dv<<21
ldr r0,drv
add r1,r1,r0,asr#10
(
str r1,rv
2ldr r0,dlv
<add r0,r8,r0,asr#10
F
str r0,lv
Padd r2,r2,#320
Zstr r2,line
d
nmov r9,r9,lsl#14
xmov r8,r8,lsl#14
�mov r11,r11,lsl#14
�
�
; dc = r5
�
; du = r6
�
; dv = r7
� ; v = r8
� ; u = r9
�; sprite = r10
�
; c = r11
�; left_adr = r12
�; right_adr = r13
�; r1 = col table
�
.xloop
and r0,r8,#255<<24
orr r0,r0,r9,lsr#8
"ldrb r0,[r10,r0,lsr#16]
,strb r0,[r12],#1
6cmp r12,r13
@addle r2,r2,#1<<31
Jaddle r8,r8,r7,asr#1
Taddle r9,r9,r6,asr#1
^
ble xloop
h
rldr r2,line
|ldr r0,y_end
�add r14,r14,#1
�cmp r14,r0
�
blt yloop
�
�]
�=0
�:
�ݤscreenadr(bk%)
�ș"OS_Byte",112,bk%
�ș"OS_Byte",113,bk%
�
� q% 8
�!q%=148:q%!4=-1
�!ș"OS_ReadVduVariables",q%,q%
=!q%
� 00000000 0d 00 0a 24 f4 20 54 72 69 61 6e 67 6c 65 20 33 |...$. Triangle 3|
00000010 62 20 66 6f 72 20 56 49 44 43 31 20 6d 61 63 68 |b for VIDC1 mach|
00000020 69 6e 65 73 0d 00 14 05 f4 0d 00 1e 30 f4 20 44 |ines........0. D|
00000030 65 6d 6f 6e 73 74 72 61 74 65 20 74 65 78 74 75 |emonstrate textu|
00000040 72 65 20 6d 61 70 70 69 6e 67 20 77 69 74 68 20 |re mapping with |
00000050 74 72 69 61 6e 67 6c 65 73 0d 00 28 05 3a 0d 00 |triangles..(.:..|
00000060 32 1f ee 20 85 20 eb 30 3a f1 20 f6 24 3b 22 20 |2.. . .0:. .$;" |
00000070 61 74 20 6c 69 6e 65 20 22 3b 9e 3a e0 0d 00 3c |at line ";.:...<|
00000080 0a eb 20 31 33 3a 87 0d 00 46 0d f2 61 73 73 65 |.. 13:...F..asse|
00000090 6d 62 6c 65 0d 00 50 0b d6 20 73 65 74 75 70 0d |mble..P.. setup.|
000000a0 00 5a 11 de 20 78 25 28 33 29 2c 79 25 28 33 29 |.Z.. x%(3),y%(3)|
000000b0 0d 00 64 18 78 25 28 29 3d 31 30 30 2c 31 30 30 |..d.x%()=100,100|
000000c0 2c 37 30 30 2c 37 30 30 0d 00 6e 18 79 25 28 29 |,700,700..n.y%()|
000000d0 3d 37 30 30 2c 31 30 30 2c 37 30 30 2c 31 30 30 |=700,100,700,100|
000000e0 0d 00 78 05 3a 0d 00 82 09 62 6b 25 3d 31 0d 00 |..x.:....bk%=1..|
000000f0 8c 09 f2 64 72 61 77 0d 00 96 09 f2 64 72 61 77 |...draw.....draw|
00000100 0d 00 a0 08 c8 97 20 ee 0d 00 aa 05 f5 0d 00 b4 |...... .........|
00000110 05 f5 0d 00 be 11 c8 97 20 6d 78 25 2c 6d 79 25 |........ mx%,my%|
00000120 2c 62 25 0d 00 c8 0a fd 20 62 25 3d 34 0d 00 d2 |,b%..... b%=4...|
00000130 05 3a 0d 00 dc 13 69 25 3d 2d 31 3a 6d 64 25 3d |.:....i%=-1:md%=|
00000140 31 30 30 30 30 0d 00 e6 0d e3 6e 25 3d 30 20 b8 |10000.....n%=0 .|
00000150 20 33 0d 00 f0 21 64 78 25 3d 6d 78 25 2d 78 25 | 3...!dx%=mx%-x%|
00000160 28 6e 25 29 3a 64 79 25 3d 6d 79 25 2d 79 25 28 |(n%):dy%=my%-y%(|
00000170 6e 25 29 0d 00 fa 16 64 25 3d 64 78 25 2a 64 78 |n%)....d%=dx%*dx|
00000180 25 2b 64 79 25 2a 64 79 25 0d 01 04 19 e7 20 64 |%+dy%*dy%..... d|
00000190 25 3c 6d 64 25 20 6d 64 25 3d 64 25 3a 69 25 3d |%<md% md%=d%:i%=|
000001a0 6e 25 0d 01 0e 05 ed 0d 01 18 1a e7 20 69 25 3c |n%.......... i%<|
000001b0 3e 2d 31 20 8c 20 f2 63 68 61 6e 67 65 28 69 25 |>-1 . .change(i%|
000001c0 29 0d 01 22 07 fd 20 a3 0d 01 2c 05 e0 0d 01 36 |)..".. ...,....6|
000001d0 05 3a 0d 01 40 10 dd f2 63 68 61 6e 67 65 28 69 |.:..@...change(i|
000001e0 25 29 0d 01 4a 05 f5 0d 01 54 17 c8 97 20 78 25 |%)..J....T... x%|
000001f0 28 69 25 29 2c 79 25 28 69 25 29 2c 62 25 0d 01 |(i%),y%(i%),b%..|
00000200 5e 09 f2 64 72 61 77 0d 01 68 0a fd 20 62 25 3d |^..draw..h.. b%=|
00000210 30 0d 01 72 09 f2 64 72 61 77 0d 01 7c 05 e1 0d |0..r..draw..|...|
00000220 01 86 05 3a 0d 01 90 0a dd f2 64 72 61 77 0d 01 |...:......draw..|
00000230 9a 17 c8 99 22 4f 53 5f 42 79 74 65 22 2c 31 31 |...."OS_Byte",11|
00000240 32 2c 62 6b 25 0d 01 a4 1d c8 94 20 21 73 63 72 |2,bk%...... !scr|
00000250 65 65 6e 61 64 72 2c 73 63 72 65 65 6e 61 64 72 |eenadr,screenadr|
00000260 21 34 0d 01 ae 0d 62 6b 25 3d 33 2d 62 6b 25 0d |!4....bk%=3-bk%.|
00000270 01 b8 06 c8 96 0d 01 c2 17 c8 99 22 4f 53 5f 42 |..........."OS_B|
00000280 79 74 65 22 2c 31 31 33 2c 62 6b 25 0d 01 cc 05 |yte",113,bk%....|
00000290 db 0d 01 d6 23 61 78 25 3d 78 25 28 30 29 3e 3e |....#ax%=x%(0)>>|
000002a0 32 3a 61 79 25 3d 32 35 36 2d 28 79 25 28 30 29 |2:ay%=256-(y%(0)|
000002b0 3e 3e 32 29 0d 01 e0 23 62 78 25 3d 78 25 28 31 |>>2)...#bx%=x%(1|
000002c0 29 3e 3e 32 3a 62 79 25 3d 32 35 36 2d 28 79 25 |)>>2:by%=256-(y%|
000002d0 28 31 29 3e 3e 32 29 0d 01 ea 23 63 78 25 3d 78 |(1)>>2)...#cx%=x|
000002e0 25 28 32 29 3e 3e 32 3a 63 79 25 3d 32 35 36 2d |%(2)>>2:cy%=256-|
000002f0 28 79 25 28 32 29 3e 3e 32 29 0d 01 f4 23 64 78 |(y%(2)>>2)...#dx|
00000300 25 3d 78 25 28 33 29 3e 3e 32 3a 64 79 25 3d 32 |%=x%(3)>>2:dy%=2|
00000310 35 36 2d 28 79 25 28 33 29 3e 3e 32 29 0d 01 fe |56-(y%(3)>>2)...|
00000320 14 f4 20 46 69 72 73 74 20 74 72 69 61 6e 67 6c |.. First triangl|
00000330 65 0d 02 08 37 e7 20 62 78 25 2a 63 79 25 2b 63 |e...7. bx%*cy%+c|
00000340 78 25 2a 61 79 25 2b 61 78 25 2a 62 79 25 3e 62 |x%*ay%+ax%*by%>b|
00000350 78 25 2a 61 79 25 2b 63 78 25 2a 62 79 25 2b 61 |x%*ay%+cx%*by%+a|
00000360 78 25 2a 63 79 25 20 8c 0d 02 12 21 20 20 21 61 |x%*cy% ....! !a|
00000370 78 3d 61 78 25 3a 21 61 79 3d 61 79 25 3a 21 61 |x=ax%:!ay=ay%:!a|
00000380 75 3d 30 3a 21 61 76 3d 30 0d 02 1c 23 20 20 21 |u=0:!av=0...# !|
00000390 62 78 3d 62 78 25 3a 21 62 79 3d 62 79 25 3a 21 |bx=bx%:!by=by%:!|
000003a0 62 75 3d 30 3a 21 62 76 3d 32 35 35 0d 02 26 23 |bu=0:!bv=255..&#|
000003b0 20 20 21 63 78 3d 63 78 25 3a 21 63 79 3d 63 79 | !cx=cx%:!cy=cy|
000003c0 25 3a 21 63 75 3d 32 35 35 3a 21 63 76 3d 30 0d |%:!cu=255:!cv=0.|
000003d0 02 30 05 cc 0d 02 3a 23 20 20 21 61 78 3d 62 78 |.0....:# !ax=bx|
000003e0 25 3a 21 61 79 3d 62 79 25 3a 21 61 75 3d 30 3a |%:!ay=by%:!au=0:|
000003f0 21 61 76 3d 32 35 35 0d 02 44 21 20 20 21 62 78 |!av=255..D! !bx|
00000400 3d 61 78 25 3a 21 62 79 3d 61 79 25 3a 21 62 75 |=ax%:!by=ay%:!bu|
00000410 3d 30 3a 21 62 76 3d 30 0d 02 4e 23 20 20 21 63 |=0:!bv=0..N# !c|
00000420 78 3d 63 78 25 3a 21 63 79 3d 63 79 25 3a 21 63 |x=cx%:!cy=cy%:!c|
00000430 75 3d 32 35 35 3a 21 63 76 3d 30 0d 02 58 05 cd |u=255:!cv=0..X..|
00000440 0d 02 62 16 d6 20 74 65 78 74 75 72 65 5f 74 72 |..b.. texture_tr|
00000450 69 61 6e 67 6c 65 0d 02 6c 04 0d 02 76 15 f4 20 |iangle..l...v.. |
00000460 53 65 63 6f 6e 64 20 74 72 69 61 6e 67 6c 65 0d |Second triangle.|
00000470 02 80 37 e7 20 62 78 25 2a 63 79 25 2b 63 78 25 |..7. bx%*cy%+cx%|
00000480 2a 64 79 25 2b 64 78 25 2a 62 79 25 3e 62 78 25 |*dy%+dx%*by%>bx%|
00000490 2a 64 79 25 2b 63 78 25 2a 62 79 25 2b 64 78 25 |*dy%+cx%*by%+dx%|
000004a0 2a 63 79 25 20 8c 0d 02 8a 25 20 20 21 61 78 3d |*cy% ....% !ax=|
000004b0 64 78 25 3a 21 61 79 3d 64 79 25 3a 21 61 75 3d |dx%:!ay=dy%:!au=|
000004c0 32 35 35 3a 21 61 76 3d 32 35 35 0d 02 94 23 20 |255:!av=255...# |
000004d0 20 21 62 78 3d 62 78 25 3a 21 62 79 3d 62 79 25 | !bx=bx%:!by=by%|
000004e0 3a 21 62 75 3d 30 3a 21 62 76 3d 32 35 35 0d 02 |:!bu=0:!bv=255..|
000004f0 9e 23 20 20 21 63 78 3d 63 78 25 3a 21 63 79 3d |.# !cx=cx%:!cy=|
00000500 63 79 25 3a 21 63 75 3d 32 35 35 3a 21 63 76 3d |cy%:!cu=255:!cv=|
00000510 30 0d 02 a8 05 cc 0d 02 b2 23 20 20 21 61 78 3d |0........# !ax=|
00000520 62 78 25 3a 21 61 79 3d 62 79 25 3a 21 61 75 3d |bx%:!ay=by%:!au=|
00000530 30 3a 21 61 76 3d 32 35 35 0d 02 bc 25 20 20 21 |0:!av=255...% !|
00000540 62 78 3d 64 78 25 3a 21 62 79 3d 64 79 25 3a 21 |bx=dx%:!by=dy%:!|
00000550 62 75 3d 32 35 35 3a 21 62 76 3d 32 35 35 0d 02 |bu=255:!bv=255..|
00000560 c6 23 20 20 21 63 78 3d 63 78 25 3a 21 63 79 3d |.# !cx=cx%:!cy=|
00000570 63 79 25 3a 21 63 75 3d 32 35 35 3a 21 63 76 3d |cy%:!cu=255:!cv=|
00000580 30 0d 02 d0 05 cd 0d 02 da 16 d6 20 74 65 78 74 |0.......... text|
00000590 75 72 65 5f 74 72 69 61 6e 67 6c 65 0d 02 e4 04 |ure_triangle....|
000005a0 0d 02 ee 1a f4 20 44 72 61 77 20 63 6f 6e 74 72 |..... Draw contr|
000005b0 6f 6c 20 68 61 6e 64 6c 65 73 0d 02 f8 0d e3 6e |ol handles.....n|
000005c0 25 3d 30 20 b8 20 33 0d 03 02 16 c8 8f 20 78 25 |%=0 . 3...... x%|
000005d0 28 6e 25 29 2c 79 25 28 6e 25 29 2c 38 0d 03 0c |(n%),y%(n%),8...|
000005e0 05 ed 0d 03 16 05 e1 0d 03 20 05 3a 0d 03 2a 0e |......... .:..*.|
000005f0 dd f2 61 73 73 65 6d 62 6c 65 0d 03 34 21 71 5f |..assemble..4!q_|
00000600 73 74 65 70 25 3d 31 36 3a 73 73 74 65 70 25 3d |step%=16:sstep%=|
00000610 32 35 36 2f 71 5f 73 74 65 70 25 0d 03 3e 20 6c |256/q_step%..> l|
00000620 6f 67 32 5f 71 5f 73 74 65 70 25 3d ab 28 71 5f |og2_q_step%=.(q_|
00000630 73 74 65 70 25 29 2f ab 28 32 29 0d 03 48 32 de |step%)/.(2)..H2.|
00000640 20 63 6f 64 65 25 20 31 36 33 38 34 2c 64 69 76 | code% 16384,div|
00000650 5f 74 61 62 6c 65 25 20 33 32 37 36 38 2a 34 2c |_table% 32768*4,|
00000660 73 70 72 69 74 65 25 20 36 35 35 39 32 0d 03 52 |sprite% 65592..R|
00000670 15 e3 20 70 61 73 73 25 3d 30 20 b8 20 32 20 88 |.. pass%=0 . 2 .|
00000680 20 32 0d 03 5c 0c 50 25 3d 63 6f 64 65 25 0d 03 | 2..\.P%=code%..|
00000690 66 0e 5b 4f 50 54 20 70 61 73 73 25 0d 03 70 0a |f.[OPT pass%..p.|
000006a0 2e 73 65 74 75 70 0d 03 7a 37 6c 64 72 20 72 30 |.setup..z7ldr r0|
000006b0 2c 64 69 76 5f 74 61 62 6c 65 20 20 20 20 20 20 |,div_table |
000006c0 20 20 3b 20 62 75 69 6c 64 20 64 69 76 69 64 65 | ; build divide|
000006d0 20 6c 6f 6f 6b 75 70 20 74 61 62 6c 65 0d 03 84 | lookup table...|
000006e0 0d 6d 6f 76 20 72 32 2c 23 31 0d 03 8e 04 0d 03 |.mov r2,#1......|
000006f0 98 07 2e 64 6c 0d 03 a2 11 6d 6f 76 20 72 34 2c |...dl....mov r4,|
00000700 23 31 3c 3c 32 30 0d 03 ac 27 6d 6f 76 20 72 35 |#1<<20...'mov r5|
00000710 2c 23 30 20 20 20 20 20 20 20 20 20 20 20 20 20 |,#0 |
00000720 20 20 3b 20 72 65 6d 61 69 6e 64 65 72 0d 03 b6 | ; remainder...|
00000730 26 6d 6f 76 20 72 36 2c 23 30 20 20 20 20 20 20 |&mov r6,#0 |
00000740 20 20 20 20 20 20 20 20 20 3b 20 71 75 6f 74 69 | ; quoti|
00000750 65 6e 74 0d 03 c0 11 6d 6f 76 20 72 37 2c 23 31 |ent....mov r7,#1|
00000760 3c 3c 33 31 0d 03 ca 0d 2e 64 69 76 5f 6c 6f 6f |<<31.....div_loo|
00000770 70 0d 03 d4 14 6d 6f 76 73 20 72 34 2c 72 34 2c |p....movs r4,r4,|
00000780 6c 73 6c 23 31 0d 03 de 10 61 64 63 20 72 35 2c |lsl#1....adc r5,|
00000790 72 35 2c 72 35 0d 03 e8 0d 63 6d 70 20 72 35 2c |r5,r5....cmp r5,|
000007a0 72 32 0d 03 f2 12 73 75 62 67 65 20 72 35 2c 72 |r2....subge r5,r|
000007b0 35 2c 72 32 0d 03 fc 12 6f 72 72 67 65 20 72 36 |5,r2....orrge r6|
000007c0 2c 72 36 2c 72 37 0d 04 06 14 6d 6f 76 73 20 72 |,r6,r7....movs r|
000007d0 37 2c 72 37 2c 6c 73 72 23 31 0d 04 10 10 62 6e |7,r7,lsr#1....bn|
000007e0 65 20 64 69 76 5f 6c 6f 6f 70 0d 04 1a 04 0d 04 |e div_loop......|
000007f0 24 18 3b 20 72 36 20 3d 20 72 34 20 64 69 76 20 |$.; r6 = r4 div |
00000800 72 32 20 3d 20 73 0d 04 2e 04 0d 04 38 13 73 74 |r2 = s......8.st|
00000810 72 20 72 36 2c 5b 72 30 2c 23 34 5d 21 0d 04 42 |r r6,[r0,#4]!..B|
00000820 10 61 64 64 20 72 32 2c 72 32 2c 23 31 0d 04 4c |.add r2,r2,#1..L|
00000830 11 63 6d 70 20 72 32 2c 23 33 32 37 36 38 0d 04 |.cmp r2,#32768..|
00000840 56 0a 62 6c 65 20 64 6c 0d 04 60 04 0d 04 6a 0e |V.ble dl..`...j.|
00000850 6d 6f 76 20 70 63 2c 72 31 34 0d 04 74 04 0d 04 |mov pc,r14..t...|
00000860 7e 0e 2e 64 69 76 5f 74 61 62 6c 65 0d 04 88 12 |~..div_table....|
00000870 64 63 64 20 64 69 76 5f 74 61 62 6c 65 25 0d 04 |dcd div_table%..|
00000880 92 04 0d 04 9c 04 0d 04 a6 0b 2e 73 74 61 63 6b |...........stack|
00000890 70 0d 04 b0 09 64 63 64 20 30 0d 04 ba 09 2e 6c |p....dcd 0.....l|
000008a0 69 6e 6b 0d 04 c4 09 64 63 64 20 30 0d 04 ce 0e |ink....dcd 0....|
000008b0 2e 64 69 76 5f 74 61 62 6c 65 0d 04 d8 12 64 63 |.div_table....dc|
000008c0 64 20 64 69 76 5f 74 61 62 6c 65 25 0d 04 e2 0c |d div_table%....|
000008d0 2e 72 5f 69 6e 64 65 78 0d 04 ec 09 64 63 64 20 |.r_index....dcd |
000008e0 30 0d 04 f6 0c 2e 6c 5f 69 6e 64 65 78 0d 05 00 |0.....l_index...|
000008f0 09 64 63 64 20 30 0d 05 0a 04 0d 05 14 0a 2e 79 |.dcd 0.........y|
00000900 5f 65 6e 64 0d 05 1e 09 64 63 64 20 30 0d 05 28 |_end....dcd 0..(|
00000910 04 0d 05 32 0b 2e 73 70 72 69 74 65 0d 05 3c 12 |...2..sprite..<.|
00000920 64 63 64 20 73 70 72 69 74 65 25 2b 35 36 0d 05 |dcd sprite%+56..|
00000930 46 0e 2e 73 63 72 65 65 6e 61 64 72 0d 05 50 15 |F..screenadr..P.|
00000940 64 63 64 20 a4 73 63 72 65 65 6e 61 64 72 28 32 |dcd .screenadr(2|
00000950 29 0d 05 5a 15 64 63 64 20 a4 73 63 72 65 65 6e |)..Z.dcd .screen|
00000960 61 64 72 28 31 29 0d 05 64 04 0d 05 6e 17 2e 61 |adr(1)..d...n..a|
00000970 79 3a 64 63 64 20 30 3a 2e 61 78 3a 64 63 64 20 |y:dcd 0:.ax:dcd |
00000980 30 0d 05 78 0f 2e 61 63 3a 64 63 64 20 32 35 35 |0..x..ac:dcd 255|
00000990 0d 05 82 17 2e 61 75 3a 64 63 64 20 30 3a 2e 61 |.....au:dcd 0:.a|
000009a0 76 3a 64 63 64 20 30 0d 05 8c 15 64 63 64 20 30 |v:dcd 0....dcd 0|
000009b0 3a 64 63 64 20 30 3a 64 63 64 20 30 0d 05 96 04 |:dcd 0:dcd 0....|
000009c0 0d 05 a0 17 2e 62 79 3a 64 63 64 20 30 3a 2e 62 |.....by:dcd 0:.b|
000009d0 78 3a 64 63 64 20 30 0d 05 aa 0f 2e 62 63 3a 64 |x:dcd 0.....bc:d|
000009e0 63 64 20 32 35 35 0d 05 b4 17 2e 62 75 3a 64 63 |cd 255.....bu:dc|
000009f0 64 20 30 3a 2e 62 76 3a 64 63 64 20 30 0d 05 be |d 0:.bv:dcd 0...|
00000a00 15 64 63 64 20 30 3a 64 63 64 20 30 3a 64 63 64 |.dcd 0:dcd 0:dcd|
00000a10 20 30 0d 05 c8 04 0d 05 d2 17 2e 63 79 3a 64 63 | 0.........cy:dc|
00000a20 64 20 30 3a 2e 63 78 3a 64 63 64 20 30 0d 05 dc |d 0:.cx:dcd 0...|
00000a30 0f 2e 63 63 3a 64 63 64 20 32 35 35 0d 05 e6 17 |..cc:dcd 255....|
00000a40 2e 63 75 3a 64 63 64 20 30 3a 2e 63 76 3a 64 63 |.cu:dcd 0:.cv:dc|
00000a50 64 20 30 0d 05 f0 15 64 63 64 20 30 3a 64 63 64 |d 0....dcd 0:dcd|
00000a60 20 30 3a 64 63 64 20 30 0d 05 fa 04 0d 06 04 15 | 0:dcd 0........|
00000a70 2e 74 65 78 74 75 72 65 5f 74 72 69 61 6e 67 6c |.texture_triangl|
00000a80 65 0d 06 0e 0d 61 64 72 20 72 30 2c 61 79 0d 06 |e....adr r0,ay..|
00000a90 18 13 6c 64 72 20 72 31 30 2c 5b 72 30 2c 23 30 |..ldr r10,[r0,#0|
00000aa0 5d 0d 06 22 14 6c 64 72 20 72 31 31 2c 5b 72 30 |]..".ldr r11,[r0|
00000ab0 2c 23 33 32 5d 0d 06 2c 0f 63 6d 70 20 72 31 31 |,#32]..,.cmp r11|
00000ac0 2c 72 31 30 0d 06 36 10 6d 6f 76 6c 74 20 72 31 |,r10..6.movlt r1|
00000ad0 2c 72 31 31 0d 06 40 10 6d 6f 76 67 65 20 72 31 |,r11..@.movge r1|
00000ae0 2c 72 31 30 0d 06 4a 0f 6d 6f 76 6c 74 20 72 32 |,r10..J.movlt r2|
00000af0 2c 23 31 0d 06 54 0f 6d 6f 76 67 65 20 72 32 2c |,#1..T.movge r2,|
00000b00 23 30 0d 06 5e 14 6c 64 72 20 72 31 32 2c 5b 72 |#0..^.ldr r12,[r|
00000b10 30 2c 23 36 34 5d 0d 06 68 0e 63 6d 70 20 72 31 |0,#64]..h.cmp r1|
00000b20 32 2c 72 31 0d 06 72 10 6d 6f 76 6c 74 20 72 31 |2,r1..r.movlt r1|
00000b30 2c 72 31 32 0d 06 7c 0f 6d 6f 76 6c 74 20 72 32 |,r12..|.movlt r2|
00000b40 2c 23 32 0d 06 86 0f 63 6d 70 20 72 31 2c 23 32 |,#2....cmp r1,#2|
00000b50 35 36 0d 06 90 10 6d 6f 76 67 65 20 70 63 2c 72 |56....movge pc,r|
00000b60 31 34 0d 06 9a 0e 63 6d 70 20 72 31 30 2c 23 30 |14....cmp r10,#0|
00000b70 0d 06 a4 10 63 6d 70 6c 74 20 72 31 31 2c 23 30 |....cmplt r11,#0|
00000b80 0d 06 ae 10 63 6d 70 6c 74 20 72 31 32 2c 23 30 |....cmplt r12,#0|
00000b90 0d 06 b8 10 6d 6f 76 6c 74 20 70 63 2c 72 31 34 |....movlt pc,r14|
00000ba0 0d 06 c2 04 0d 06 cc 12 73 74 72 20 72 31 33 2c |........str r13,|
00000bb0 73 74 61 63 6b 70 0d 06 d6 04 0d 06 e0 11 73 75 |stackp........su|
00000bc0 62 73 20 72 33 2c 72 32 2c 23 31 0d 06 ea 0f 6d |bs r3,r2,#1....m|
00000bd0 6f 76 6c 74 20 72 33 2c 23 32 0d 06 f4 04 0d 06 |ovlt r3,#2......|
00000be0 fe 16 61 64 64 20 72 32 2c 72 30 2c 72 32 2c 6c |..add r2,r0,r2,l|
00000bf0 73 6c 23 35 0d 07 08 3d 6c 64 6d 69 62 20 72 32 |sl#5...=ldmib r2|
00000c00 2c 7b 72 35 2c 72 36 2c 72 37 2c 72 38 7d 20 20 |,{r5,r6,r7,r8} |
00000c10 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
00000c20 3b 20 78 5f 6b 2c 63 5f 6b 2c 75 5f 6b 2c 76 5f |; x_k,c_k,u_k,v_|
00000c30 6b 0d 07 12 16 61 64 64 20 72 34 2c 72 30 2c 72 |k....add r4,r0,r|
00000c40 33 2c 6c 73 6c 23 35 0d 07 1c 12 73 74 72 20 72 |3,lsl#5....str r|
00000c50 34 2c 6c 5f 69 6e 64 65 78 0d 07 26 11 73 75 62 |4,l_index..&.sub|
00000c60 73 20 72 33 2c 72 33 2c 23 31 0d 07 30 0f 6d 6f |s r3,r3,#1..0.mo|
00000c70 76 6c 74 20 72 33 2c 23 32 0d 07 3a 16 61 64 64 |vlt r3,#2..:.add|
00000c80 20 72 30 2c 72 30 2c 72 33 2c 6c 73 6c 23 35 0d | r0,r0,r3,lsl#5.|
00000c90 07 44 12 73 74 72 20 72 30 2c 72 5f 69 6e 64 65 |.D.str r0,r_inde|
00000ca0 78 0d 07 4e 41 6c 64 6d 69 61 20 72 34 2c 7b 72 |x..NAldmia r4,{r|
00000cb0 39 2c 72 31 30 2c 72 31 31 2c 72 31 32 2c 72 31 |9,r10,r11,r12,r1|
00000cc0 33 7d 20 20 20 20 20 20 20 20 20 20 20 3b 20 79 |3} ; y|
00000cd0 5f 6c 2c 78 5f 6c 2c 63 5f 6c 2c 75 5f 6c 2c 76 |_l,x_l,c_l,u_l,v|
00000ce0 5f 6c 0d 07 58 04 0d 07 62 10 73 74 72 20 72 31 |_l..X...b.str r1|
00000cf0 34 2c 6c 69 6e 6b 0d 07 6c 15 6c 64 72 20 72 31 |4,link..l.ldr r1|
00000d00 34 2c 64 69 76 5f 74 61 62 6c 65 0d 07 76 31 73 |4,div_table..v1s|
00000d10 75 62 73 20 72 32 2c 72 39 2c 72 31 20 20 20 20 |ubs r2,r9,r1 |
00000d20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
00000d30 20 20 20 20 20 20 20 3b 20 64 6c 79 0d 07 80 37 | ; dly...7|
00000d40 6c 64 72 67 74 20 72 32 2c 5b 72 31 34 2c 72 32 |ldrgt r2,[r14,r2|
00000d50 2c 6c 73 6c 23 32 5d 20 20 20 20 20 20 20 20 20 |,lsl#2] |
00000d60 20 20 20 20 20 20 20 20 3b 20 31 3c 3c 32 30 2f | ; 1<<20/|
00000d70 64 6c 79 0d 07 8a 04 0d 07 94 16 6d 6f 76 67 74 |dly........movgt|
00000d80 20 72 33 2c 72 35 2c 6c 73 6c 23 31 30 0d 07 9e | r3,r5,lsl#10...|
00000d90 17 6d 6f 76 65 71 20 72 33 2c 72 31 30 2c 6c 73 |.moveq r3,r10,ls|
00000da0 6c 23 31 30 0d 07 a8 13 73 75 62 67 74 20 72 34 |l#10....subgt r4|
00000db0 2c 72 31 30 2c 72 35 0d 07 b2 35 6d 75 6c 20 72 |,r10,r5...5mul r|
00000dc0 34 2c 72 32 2c 72 34 20 20 20 20 20 20 20 20 20 |4,r2,r4 |
00000dd0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
00000de0 20 20 20 3b 20 64 6c 78 3c 3c 32 30 0d 07 bc 0e | ; dlx<<20....|
00000df0 73 74 72 20 72 34 2c 64 6c 78 0d 07 c6 04 0d 07 |str r4,dlx......|
00000e00 d0 17 6d 6f 76 67 74 20 72 31 30 2c 72 37 2c 6c |..movgt r10,r7,l|
00000e10 73 6c 23 31 30 0d 07 da 18 6d 6f 76 65 71 20 72 |sl#10....moveq r|
00000e20 31 30 2c 72 31 32 2c 6c 73 6c 23 31 30 0d 07 e4 |10,r12,lsl#10...|
00000e30 0e 73 74 72 20 72 31 30 2c 6c 75 0d 07 ee 13 73 |.str r10,lu....s|
00000e40 75 62 67 74 20 72 34 2c 72 31 32 2c 72 37 0d 07 |ubgt r4,r12,r7..|
00000e50 f8 35 6d 75 6c 20 72 34 2c 72 32 2c 72 34 20 20 |.5mul r4,r2,r4 |
00000e60 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
00000e70 20 20 20 20 20 20 20 20 20 20 3b 20 64 6c 75 3c | ; dlu<|
00000e80 3c 32 30 0d 08 02 0e 73 74 72 20 72 34 2c 64 6c |<20....str r4,dl|
00000e90 75 0d 08 0c 04 0d 08 16 17 6d 6f 76 67 74 20 72 |u........movgt r|
00000ea0 31 30 2c 72 38 2c 6c 73 6c 23 31 30 0d 08 20 18 |10,r8,lsl#10.. .|
00000eb0 6d 6f 76 65 71 20 72 31 30 2c 72 31 33 2c 6c 73 |moveq r10,r13,ls|
00000ec0 6c 23 31 30 0d 08 2a 0e 73 74 72 20 72 31 30 2c |l#10..*.str r10,|
00000ed0 6c 76 0d 08 34 13 73 75 62 67 74 20 72 34 2c 72 |lv..4.subgt r4,r|
00000ee0 31 33 2c 72 38 0d 08 3e 35 6d 75 6c 20 72 34 2c |13,r8..>5mul r4,|
00000ef0 72 32 2c 72 34 20 20 20 20 20 20 20 20 20 20 20 |r2,r4 |
00000f00 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
00000f10 20 3b 20 64 6c 76 3c 3c 32 30 0d 08 48 0e 73 74 | ; dlv<<20..H.st|
00000f20 72 20 72 34 2c 64 6c 76 0d 08 52 04 0d 08 5c 41 |r r4,dlv..R...\A|
00000f30 6c 64 6d 69 61 20 72 30 2c 7b 72 30 2c 72 31 30 |ldmia r0,{r0,r10|
00000f40 2c 72 31 31 2c 72 31 32 2c 72 31 33 7d 20 20 20 |,r11,r12,r13} |
00000f50 20 20 20 20 20 20 20 20 3b 20 79 5f 72 2c 78 5f | ; y_r,x_|
00000f60 72 2c 63 5f 72 2c 75 5f 72 2c 76 5f 72 0d 08 66 |r,c_r,u_r,v_r..f|
00000f70 31 73 75 62 73 20 72 32 2c 72 30 2c 72 31 20 20 |1subs r2,r0,r1 |
00000f80 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
00000f90 20 20 20 20 20 20 20 20 20 3b 20 64 72 79 0d 08 | ; dry..|
00000fa0 70 37 6c 64 72 67 74 20 72 32 2c 5b 72 31 34 2c |p7ldrgt r2,[r14,|
00000fb0 72 32 2c 6c 73 6c 23 32 5d 20 20 20 20 20 20 20 |r2,lsl#2] |
00000fc0 20 20 20 20 20 20 20 20 20 20 3b 20 31 3c 3c 32 | ; 1<<2|
00000fd0 30 2f 64 72 79 0d 08 7a 04 0d 08 84 16 6d 6f 76 |0/dry..z.....mov|
00000fe0 67 74 20 72 34 2c 72 35 2c 6c 73 6c 23 31 30 0d |gt r4,r5,lsl#10.|
00000ff0 08 8e 17 6d 6f 76 65 71 20 72 34 2c 72 31 30 2c |...moveq r4,r10,|
00001000 6c 73 6c 23 31 30 0d 08 98 14 73 75 62 67 74 20 |lsl#10....subgt |
00001010 72 31 30 2c 72 31 30 2c 72 35 0d 08 a2 35 6d 75 |r10,r10,r5...5mu|
00001020 6c 20 72 31 30 2c 72 32 2c 72 31 30 20 20 20 20 |l r10,r2,r10 |
00001030 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
00001040 20 20 20 20 20 20 3b 20 64 72 78 3c 3c 32 30 0d | ; drx<<20.|
00001050 08 ac 0f 73 74 72 20 72 31 30 2c 64 72 78 0d 08 |...str r10,drx..|
00001060 b6 04 0d 08 c0 17 6d 6f 76 67 74 20 72 31 30 2c |......movgt r10,|
00001070 72 37 2c 6c 73 6c 23 31 30 0d 08 ca 18 6d 6f 76 |r7,lsl#10....mov|
00001080 65 71 20 72 31 30 2c 72 31 32 2c 6c 73 6c 23 31 |eq r10,r12,lsl#1|
00001090 30 0d 08 d4 0e 73 74 72 20 72 31 30 2c 72 75 0d |0....str r10,ru.|
000010a0 08 de 14 73 75 62 67 74 20 72 31 30 2c 72 31 32 |...subgt r10,r12|
000010b0 2c 72 37 0d 08 e8 35 6d 75 6c 20 72 31 30 2c 72 |,r7...5mul r10,r|
000010c0 32 2c 72 31 30 20 20 20 20 20 20 20 20 20 20 20 |2,r10 |
000010d0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 3b | ;|
000010e0 20 64 72 75 3c 3c 32 30 0d 08 f2 0f 73 74 72 20 | dru<<20....str |
000010f0 72 31 30 2c 64 72 75 0d 08 fc 04 0d 09 06 17 6d |r10,dru........m|
00001100 6f 76 67 74 20 72 31 30 2c 72 38 2c 6c 73 6c 23 |ovgt r10,r8,lsl#|
00001110 31 30 0d 09 10 18 6d 6f 76 65 71 20 72 31 30 2c |10....moveq r10,|
00001120 72 31 33 2c 6c 73 6c 23 31 30 0d 09 1a 0e 73 74 |r13,lsl#10....st|
00001130 72 20 72 31 30 2c 72 76 0d 09 24 14 73 75 62 67 |r r10,rv..$.subg|
00001140 74 20 72 31 30 2c 72 31 33 2c 72 38 0d 09 2e 35 |t r10,r13,r8...5|
00001150 6d 75 6c 20 72 31 30 2c 72 32 2c 72 31 30 20 20 |mul r10,r2,r10 |
00001160 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
00001170 20 20 20 20 20 20 20 20 3b 20 64 72 76 3c 3c 32 | ; drv<<2|
00001180 30 0d 09 38 0f 73 74 72 20 72 31 30 2c 64 72 76 |0..8.str r10,drv|
00001190 0d 09 42 04 0d 09 4c 14 6c 64 72 20 72 32 2c 73 |..B...L.ldr r2,s|
000011a0 63 72 65 65 6e 61 64 72 0d 09 56 16 61 64 64 20 |creenadr..V.add |
000011b0 72 32 2c 72 32 2c 72 31 2c 6c 73 6c 23 36 0d 09 |r2,r2,r1,lsl#6..|
000011c0 60 39 61 64 64 20 72 32 2c 72 32 2c 72 31 2c 6c |`9add r2,r2,r1,l|
000011d0 73 6c 23 38 20 20 20 20 20 20 20 20 20 20 20 20 |sl#8 |
000011e0 20 20 20 20 20 20 20 20 20 20 3b 20 73 63 72 65 | ; scre|
000011f0 65 6e 20 6c 69 6e 65 0d 09 6a 04 0d 09 74 0e 4d |en line..j...t.M|
00001200 4f 56 20 52 31 34 2c 52 31 0d 09 7e 12 6c 64 72 |OV R14,R1..~.ldr|
00001210 20 72 31 30 2c 73 70 72 69 74 65 0d 09 88 04 0d | r10,sprite.....|
00001220 09 92 0d 63 6d 70 20 72 39 2c 72 30 0d 09 9c 12 |...cmp r9,r0....|
00001230 73 74 72 6c 74 20 72 39 2c 79 5f 65 6e 64 0d 09 |strlt r9,y_end..|
00001240 a6 12 73 74 72 67 65 20 72 30 2c 79 5f 65 6e 64 |..strge r0,y_end|
00001250 0d 09 b0 04 0d 09 ba 10 62 67 74 20 6d 65 74 68 |........bgt meth|
00001260 6f 64 5f 32 0d 09 c4 10 62 65 71 20 6c 61 73 74 |od_2....beq last|
00001270 5f 62 69 74 0d 09 ce 04 0d 09 d8 3c 2e 6d 65 74 |_bit.......<.met|
00001280 68 6f 64 5f 31 20 20 20 20 20 20 20 20 20 20 20 |hod_1 |
00001290 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
000012a0 20 20 20 20 3b 20 6c 65 66 74 5f 79 3c 72 69 67 | ; left_y<rig|
000012b0 68 74 5f 79 0d 09 e2 04 0d 09 ec 0a a4 79 6c 6f |ht_y.........ylo|
000012c0 6f 70 0d 09 f6 04 0d 0a 00 0e 3b 20 72 30 20 3d |op........; r0 =|
000012d0 20 79 5f 6c 0d 0a 0a 11 3b 20 72 32 20 3d 20 73 | y_l....; r2 = s|
000012e0 63 6c 69 6e 65 0d 0a 14 0d 3b 20 72 33 20 3d 20 |cline....; r3 = |
000012f0 6c 78 0d 0a 1e 0d 3b 20 72 34 20 3d 20 72 78 0d |lx....; r4 = rx.|
00001300 0a 28 17 3b 20 72 31 2c 72 35 2d 72 31 34 20 3d |.(.; r1,r5-r14 =|
00001310 20 65 6d 70 74 79 0d 0a 32 04 0d 0a 3c 20 3b 20 | empty..2...< ; |
00001320 72 65 63 61 6c 63 75 61 74 65 20 64 6c 78 2c 64 |recalcuate dlx,d|
00001330 6c 75 2c 64 6c 76 2c 64 6c 63 0d 0a 46 12 6c 64 |lu,dlv,dlc..F.ld|
00001340 72 20 72 31 2c 6c 5f 69 6e 64 65 78 0d 0a 50 3d |r r1,l_index..P=|
00001350 6c 64 6d 69 62 20 72 31 2c 7b 72 33 2c 72 31 30 |ldmib r1,{r3,r10|
00001360 2c 72 31 31 2c 72 31 32 7d 20 20 20 20 20 20 20 |,r11,r12} |
00001370 20 20 20 20 20 20 20 20 3b 20 78 5f 6c 2c 63 5f | ; x_l,c_|
00001380 6c 2c 75 5f 6c 2c 76 5f 6c 0d 0a 5a 12 6c 64 72 |l,u_l,v_l..Z.ldr|
00001390 20 72 31 2c 72 5f 69 6e 64 65 78 0d 0a 64 41 6c | r1,r_index..dAl|
000013a0 64 6d 69 61 20 72 31 2c 7b 72 31 2c 72 35 2c 72 |dmia r1,{r1,r5,r|
000013b0 36 2c 72 37 2c 72 38 7d 20 20 20 20 20 20 20 20 |6,r7,r8} |
000013c0 20 20 20 20 20 20 20 3b 20 79 5f 72 2c 78 5f 72 | ; y_r,x_r|
000013d0 2c 63 5f 72 2c 75 5f 72 2c 76 5f 72 0d 0a 6e 10 |,c_r,u_r,v_r..n.|
000013e0 73 74 72 20 72 31 2c 79 5f 65 6e 64 0d 0a 78 04 |str r1,y_end..x.|
000013f0 0d 0a 82 31 73 75 62 73 20 72 31 2c 72 31 2c 72 |...1subs r1,r1,r|
00001400 30 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |0 |
00001410 20 20 20 20 20 20 20 20 20 20 20 20 3b 20 64 6c | ; dl|
00001420 79 0d 0a 8c 15 6c 64 72 20 72 31 34 2c 64 69 76 |y....ldr r14,div|
00001430 5f 74 61 62 6c 65 0d 0a 96 04 0d 0a a0 37 6c 64 |_table.......7ld|
00001440 72 67 74 20 72 31 2c 5b 72 31 34 2c 72 31 2c 6c |rgt r1,[r14,r1,l|
00001450 73 6c 23 32 5d 20 20 20 20 20 20 20 20 20 20 20 |sl#2] |
00001460 20 20 20 20 20 20 3b 20 31 3c 3c 32 30 2f 64 6c | ; 1<<20/dl|
00001470 79 0d 0a aa 13 73 75 62 67 74 20 72 37 2c 72 37 |y....subgt r7,r7|
00001480 2c 72 31 31 0d 0a b4 35 6d 75 6c 20 72 37 2c 72 |,r11...5mul r7,r|
00001490 31 2c 72 37 20 20 20 20 20 20 20 20 20 20 20 20 |1,r7 |
000014a0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
000014b0 3b 20 64 6c 75 3c 3c 32 30 0d 0a be 0e 73 74 72 |; dlu<<20....str|
000014c0 20 72 37 2c 64 6c 75 0d 0a c8 12 73 75 62 67 74 | r7,dlu....subgt|
000014d0 20 72 35 2c 72 35 2c 72 33 0d 0a d2 14 6d 6f 76 | r5,r5,r3....mov|
000014e0 20 72 33 2c 72 33 2c 6c 73 6c 23 31 30 0d 0a dc | r3,r3,lsl#10...|
000014f0 35 6d 75 6c 20 72 35 2c 72 31 2c 72 35 20 20 20 |5mul r5,r1,r5 |
00001500 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
00001510 20 20 20 20 20 20 20 20 20 3b 20 64 6c 78 3c 3c | ; dlx<<|
00001520 32 30 0d 0a e6 0e 73 74 72 20 72 35 2c 64 6c 78 |20....str r5,dlx|
00001530 0d 0a f0 04 0d 0a fa 13 73 75 62 67 74 20 72 35 |........subgt r5|
00001540 2c 72 38 2c 72 31 32 0d 0b 04 35 6d 75 6c 20 72 |,r8,r12...5mul r|
00001550 35 2c 72 31 2c 72 35 20 20 20 20 20 20 20 20 20 |5,r1,r5 |
00001560 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
00001570 20 20 20 3b 20 64 6c 76 3c 3c 32 30 0d 0b 0e 0e | ; dlv<<20....|
00001580 73 74 72 20 72 35 2c 64 6c 76 0d 0b 18 04 0d 0b |str r5,dlv......|
00001590 22 12 6c 64 72 20 72 31 30 2c 73 70 72 69 74 65 |".ldr r10,sprite|
000015a0 0d 0b 2c 04 0d 0b 36 0e 4d 4f 56 20 52 31 34 2c |..,...6.MOV R14,|
000015b0 52 30 0d 0b 40 0d 2e 6c 61 73 74 5f 62 69 74 0d |R0..@..last_bit.|
000015c0 0b 4a 0a a4 79 6c 6f 6f 70 0d 0b 54 04 0d 0b 5e |.J..yloop..T...^|
000015d0 12 6c 64 72 20 72 31 33 2c 73 74 61 63 6b 70 0d |.ldr r13,stackp.|
000015e0 0b 68 10 6c 64 72 20 72 31 35 2c 6c 69 6e 6b 0d |.h.ldr r15,link.|
000015f0 0b 72 04 0d 0b 7c 04 0d 0b 86 3d 2e 6d 65 74 68 |.r...|....=.meth|
00001600 6f 64 5f 32 20 20 20 20 20 20 20 20 20 20 20 20 |od_2 |
00001610 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
00001620 20 20 20 3b 20 72 69 67 68 74 5f 79 3c 20 6c 65 | ; right_y< le|
00001630 66 74 5f 79 0d 0b 90 0a a4 79 6c 6f 6f 70 0d 0b |ft_y.....yloop..|
00001640 9a 04 0d 0b a4 0e 3b 20 72 30 20 3d 20 79 5f 6c |......; r0 = y_l|
00001650 0d 0b ae 11 3b 20 72 32 20 3d 20 73 63 6c 69 6e |....; r2 = sclin|
00001660 65 0d 0b b8 0d 3b 20 72 33 20 3d 20 6c 78 0d 0b |e....; r3 = lx..|
00001670 c2 0d 3b 20 72 34 20 3d 20 72 78 0d 0b cc 17 3b |..; r4 = rx....;|
00001680 20 72 31 2c 72 35 2d 72 31 34 20 3d 20 65 6d 70 | r1,r5-r14 = emp|
00001690 74 79 0d 0b d6 04 0d 0b e0 20 3b 20 72 65 63 61 |ty....... ; reca|
000016a0 6c 63 75 61 74 65 20 64 72 78 2c 64 72 75 2c 64 |lcuate drx,dru,d|
000016b0 72 76 2c 64 72 63 0d 0b ea 12 6c 64 72 20 72 31 |rv,drc....ldr r1|
000016c0 2c 72 5f 69 6e 64 65 78 0d 0b f4 3d 6c 64 6d 69 |,r_index...=ldmi|
000016d0 62 20 72 31 2c 7b 72 34 2c 72 31 30 2c 72 31 31 |b r1,{r4,r10,r11|
000016e0 2c 72 31 32 7d 20 20 20 20 20 20 20 20 20 20 20 |,r12} |
000016f0 20 20 20 20 3b 20 78 5f 72 2c 63 5f 72 2c 75 5f | ; x_r,c_r,u_|
00001700 72 2c 76 5f 72 0d 0b fe 12 6c 64 72 20 72 31 2c |r,v_r....ldr r1,|
00001710 6c 5f 69 6e 64 65 78 0d 0c 08 41 6c 64 6d 69 61 |l_index...Aldmia|
00001720 20 72 31 2c 7b 72 31 2c 72 35 2c 72 36 2c 72 37 | r1,{r1,r5,r6,r7|
00001730 2c 72 38 7d 20 20 20 20 20 20 20 20 20 20 20 20 |,r8} |
00001740 20 20 20 3b 20 79 5f 6c 2c 78 5f 6c 2c 63 5f 6c | ; y_l,x_l,c_l|
00001750 2c 75 5f 6c 2c 76 5f 6c 0d 0c 12 10 73 74 72 20 |,u_l,v_l....str |
00001760 72 31 2c 79 5f 65 6e 64 0d 0c 1c 04 0d 0c 26 31 |r1,y_end......&1|
00001770 73 75 62 73 20 72 31 2c 72 31 2c 72 30 20 20 20 |subs r1,r1,r0 |
00001780 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
00001790 20 20 20 20 20 20 20 20 3b 20 64 6c 79 0d 0c 30 | ; dly..0|
000017a0 15 6c 64 72 20 72 31 34 2c 64 69 76 5f 74 61 62 |.ldr r14,div_tab|
000017b0 6c 65 0d 0c 3a 04 0d 0c 44 37 6c 64 72 67 74 20 |le..:...D7ldrgt |
000017c0 72 31 2c 5b 72 31 34 2c 72 31 2c 6c 73 6c 23 32 |r1,[r14,r1,lsl#2|
000017d0 5d 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |] |
000017e0 20 20 3b 20 31 3c 3c 32 30 2f 64 6c 79 0d 0c 4e | ; 1<<20/dly..N|
000017f0 12 73 75 62 67 74 20 72 35 2c 72 35 2c 72 34 0d |.subgt r5,r5,r4.|
00001800 0c 58 14 6d 6f 76 20 72 34 2c 72 34 2c 6c 73 6c |.X.mov r4,r4,lsl|
00001810 23 31 30 0d 0c 62 35 6d 75 6c 20 72 35 2c 72 31 |#10..b5mul r5,r1|
00001820 2c 72 35 20 20 20 20 20 20 20 20 20 20 20 20 20 |,r5 |
00001830 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 3b | ;|
00001840 20 64 6c 78 3c 3c 32 30 0d 0c 6c 0e 73 74 72 20 | dlx<<20..l.str |
00001850 72 35 2c 64 72 78 0d 0c 76 13 73 75 62 67 74 20 |r5,drx..v.subgt |
00001860 72 35 2c 72 37 2c 72 31 31 0d 0c 80 35 6d 75 6c |r5,r7,r11...5mul|
00001870 20 72 35 2c 72 31 2c 72 35 20 20 20 20 20 20 20 | r5,r1,r5 |
00001880 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
00001890 20 20 20 20 20 3b 20 64 6c 75 3c 3c 32 30 0d 0c | ; dlu<<20..|
000018a0 8a 0e 73 74 72 20 72 35 2c 64 72 75 0d 0c 94 13 |..str r5,dru....|
000018b0 73 75 62 67 74 20 72 35 2c 72 38 2c 72 31 32 0d |subgt r5,r8,r12.|
000018c0 0c 9e 35 6d 75 6c 20 72 35 2c 72 31 2c 72 35 20 |..5mul r5,r1,r5 |
000018d0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
000018e0 20 20 20 20 20 20 20 20 20 20 20 3b 20 64 6c 76 | ; dlv|
000018f0 3c 3c 32 30 0d 0c a8 0e 73 74 72 20 72 35 2c 64 |<<20....str r5,d|
00001900 72 76 0d 0c b2 04 0d 0c bc 12 6c 64 72 20 72 31 |rv........ldr r1|
00001910 30 2c 73 70 72 69 74 65 0d 0c c6 0e 4d 4f 56 20 |0,sprite....MOV |
00001920 52 31 34 2c 52 30 0d 0c d0 0a a4 79 6c 6f 6f 70 |R14,R0.....yloop|
00001930 0d 0c da 04 0d 0c e4 12 6c 64 72 20 72 31 33 2c |........ldr r13,|
00001940 73 74 61 63 6b 70 0d 0c ee 10 6c 64 72 20 72 31 |stackp....ldr r1|
00001950 35 2c 6c 69 6e 6b 0d 0c f8 04 0d 0d 02 09 2e 6c |5,link.........l|
00001960 69 6e 65 0d 0d 0c 09 64 63 64 20 30 0d 0d 16 04 |ine....dcd 0....|
00001970 0d 0d 20 0b 2e 63 6f 6f 72 64 73 0d 0d 2a 17 2e |.. ..coords..*..|
00001980 6c 75 3a 64 63 64 20 30 3a 2e 72 75 3a 64 63 64 |lu:dcd 0:.ru:dcd|
00001990 20 30 0d 0d 34 17 2e 6c 63 3a 64 63 64 20 30 3a | 0..4..lc:dcd 0:|
000019a0 2e 72 63 3a 64 63 64 20 30 0d 0d 3e 17 2e 6c 76 |.rc:dcd 0..>..lv|
000019b0 3a 64 63 64 20 30 3a 2e 72 76 3a 64 63 64 20 30 |:dcd 0:.rv:dcd 0|
000019c0 0d 0d 48 19 2e 64 6c 78 3a 64 63 64 20 30 3a 2e |..H..dlx:dcd 0:.|
000019d0 64 72 78 3a 64 63 64 20 30 0d 0d 52 19 2e 64 6c |drx:dcd 0..R..dl|
000019e0 63 3a 64 63 64 20 30 3a 2e 64 72 63 3a 64 63 64 |c:dcd 0:.drc:dcd|
000019f0 20 30 0d 0d 5c 19 2e 64 6c 75 3a 64 63 64 20 30 | 0..\..dlu:dcd 0|
00001a00 3a 2e 64 72 75 3a 64 63 64 20 30 0d 0d 66 19 2e |:.dru:dcd 0..f..|
00001a10 64 6c 76 3a 64 63 64 20 30 3a 2e 64 72 76 3a 64 |dlv:dcd 0:.drv:d|
00001a20 63 64 20 30 0d 0d 70 04 0d 0d 7a 05 5d 0d 0d 84 |cd 0..p...z.]...|
00001a30 05 ed 0d 0d 8e 24 c8 99 22 4f 53 5f 46 69 6c 65 |.....$.."OS_File|
00001a40 22 2c 31 36 2c 22 50 69 63 74 75 72 65 22 2c 73 |",16,"Picture",s|
00001a50 70 72 69 74 65 25 0d 0d 98 05 e1 0d 0d a2 05 3a |prite%.........:|
00001a60 0d 0d ac 0b dd a4 79 6c 6f 6f 70 0d 0d b6 0e 5b |......yloop....[|
00001a70 4f 50 54 20 70 61 73 73 25 0d 0d c0 0d 3b 20 72 |OPT pass%....; r|
00001a80 32 20 3d 20 73 63 0d 0d ca 0d 3b 20 72 33 20 3d |2 = sc....; r3 =|
00001a90 20 6c 78 0d 0d d4 0d 3b 20 72 34 20 3d 20 72 78 | lx....; r4 = rx|
00001aa0 0d 0d de 0f 3b 20 72 31 34 20 3d 20 79 5f 6b 0d |....; r14 = y_k.|
00001ab0 0d e8 04 0d 0d f2 0a 2e 79 6c 6f 6f 70 0d 0d fc |........yloop...|
00001ac0 2c 73 75 62 73 20 72 30 2c 72 34 2c 72 33 20 20 |,subs r0,r4,r3 |
00001ad0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
00001ae0 20 3b 20 64 78 3c 3c 31 30 0d 0e 06 2e 61 64 64 | ; dx<<10....add|
00001af0 20 72 31 32 2c 72 32 2c 72 33 2c 61 73 72 23 31 | r12,r2,r3,asr#1|
00001b00 30 20 20 20 20 20 20 20 20 20 20 20 20 3b 20 6c |0 ; l|
00001b10 65 66 74 20 61 64 72 0d 0e 10 0f 6c 64 72 20 72 |eft adr....ldr r|
00001b20 31 33 2c 64 6c 78 0d 0e 1a 2d 61 64 64 20 72 33 |13,dlx...-add r3|
00001b30 2c 72 33 2c 72 31 33 2c 61 73 72 23 31 30 20 20 |,r3,r13,asr#10 |
00001b40 20 20 20 20 20 20 20 20 20 20 3b 20 6c 78 2b 3d | ; lx+=|
00001b50 64 6c 78 0d 0e 24 0f 6c 64 72 20 72 31 31 2c 64 |dlx..$.ldr r11,d|
00001b60 72 78 0d 0e 2e 2f 61 64 64 20 72 31 33 2c 72 32 |rx.../add r13,r2|
00001b70 2c 72 34 2c 61 73 72 23 31 30 20 20 20 20 20 20 |,r4,asr#10 |
00001b80 20 20 20 20 20 20 3b 20 72 69 67 68 74 20 61 64 | ; right ad|
00001b90 72 0d 0e 38 2d 61 64 64 20 72 34 2c 72 34 2c 72 |r..8-add r4,r4,r|
00001ba0 31 31 2c 61 73 72 23 31 30 20 20 20 20 20 20 20 |11,asr#10 |
00001bb0 20 20 20 20 20 3b 20 72 78 2b 3d 64 72 78 0d 0e | ; rx+=drx..|
00001bc0 42 15 6c 64 72 20 72 31 31 2c 64 69 76 5f 74 61 |B.ldr r11,div_ta|
00001bd0 62 6c 65 0d 0e 4c 13 6d 6f 76 20 72 30 2c 72 30 |ble..L.mov r0,r0|
00001be0 2c 61 73 72 23 35 0d 0e 56 2e 6c 64 72 67 74 20 |,asr#5..V.ldrgt |
00001bf0 72 30 2c 5b 72 31 31 2c 72 30 2c 6c 73 6c 23 32 |r0,[r11,r0,lsl#2|
00001c00 5d 20 20 20 20 20 20 20 20 20 3b 20 31 3c 3c 31 |] ; 1<<1|
00001c10 38 2f 64 78 0d 0e 60 0d 6c 64 72 20 72 39 2c 6c |8/dx..`.ldr r9,l|
00001c20 75 0d 0e 6a 0d 6c 64 72 20 72 38 2c 72 75 0d 0e |u..j.ldr r8,ru..|
00001c30 74 04 0d 0e 7e 2c 73 75 62 20 72 36 2c 72 38 2c |t...~,sub r6,r8,|
00001c40 72 39 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |r9 |
00001c50 20 20 20 20 20 20 3b 20 64 75 3c 3c 31 30 0d 0e | ; du<<10..|
00001c60 88 2c 6d 75 6c 20 72 36 2c 72 30 2c 72 36 20 20 |.,mul r6,r0,r6 |
00001c70 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
00001c80 20 20 3b 20 64 75 3c 3c 32 34 0d 0e 92 04 0d 0e | ; du<<24......|
00001c90 9c 0e 6c 64 72 20 72 37 2c 64 72 75 0d 0e a6 17 |..ldr r7,dru....|
00001ca0 61 64 64 20 72 38 2c 72 38 2c 72 37 2c 61 73 72 |add r8,r8,r7,asr|
00001cb0 23 31 30 0d 0e b0 0d 73 74 72 20 72 38 2c 72 75 |#10....str r8,ru|
00001cc0 0d 0e ba 04 0d 0e c4 0e 6c 64 72 20 72 37 2c 64 |........ldr r7,d|
00001cd0 6c 75 0d 0e ce 17 61 64 64 20 72 38 2c 72 39 2c |lu....add r8,r9,|
00001ce0 72 37 2c 61 73 72 23 31 30 0d 0e d8 0d 73 74 72 |r7,asr#10....str|
00001cf0 20 72 38 2c 6c 75 0d 0e e2 04 0d 0e ec 0d 6c 64 | r8,lu........ld|
00001d00 72 20 72 38 2c 6c 76 0d 0e f6 0d 6c 64 72 20 72 |r r8,lv....ldr r|
00001d10 31 2c 72 76 0d 0f 00 2c 73 75 62 20 72 37 2c 72 |1,rv...,sub r7,r|
00001d20 31 2c 72 38 20 20 20 20 20 20 20 20 20 20 20 20 |1,r8 |
00001d30 20 20 20 20 20 20 20 20 3b 20 64 76 3c 3c 31 30 | ; dv<<10|
00001d40 0d 0f 0a 2c 6d 75 6c 20 72 37 2c 72 30 2c 72 37 |...,mul r7,r0,r7|
00001d50 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
00001d60 20 20 20 20 3b 20 64 76 3c 3c 32 31 0d 0f 14 0e | ; dv<<21....|
00001d70 6c 64 72 20 72 30 2c 64 72 76 0d 0f 1e 17 61 64 |ldr r0,drv....ad|
00001d80 64 20 72 31 2c 72 31 2c 72 30 2c 61 73 72 23 31 |d r1,r1,r0,asr#1|
00001d90 30 0d 0f 28 0d 73 74 72 20 72 31 2c 72 76 0d 0f |0..(.str r1,rv..|
00001da0 32 0e 6c 64 72 20 72 30 2c 64 6c 76 0d 0f 3c 17 |2.ldr r0,dlv..<.|
00001db0 61 64 64 20 72 30 2c 72 38 2c 72 30 2c 61 73 72 |add r0,r8,r0,asr|
00001dc0 23 31 30 0d 0f 46 0d 73 74 72 20 72 30 2c 6c 76 |#10..F.str r0,lv|
00001dd0 0d 0f 50 12 61 64 64 20 72 32 2c 72 32 2c 23 33 |..P.add r2,r2,#3|
00001de0 32 30 0d 0f 5a 0f 73 74 72 20 72 32 2c 6c 69 6e |20..Z.str r2,lin|
00001df0 65 0d 0f 64 04 0d 0f 6e 14 6d 6f 76 20 72 39 2c |e..d...n.mov r9,|
00001e00 72 39 2c 6c 73 6c 23 31 34 0d 0f 78 14 6d 6f 76 |r9,lsl#14..x.mov|
00001e10 20 72 38 2c 72 38 2c 6c 73 6c 23 31 34 0d 0f 82 | r8,r8,lsl#14...|
00001e20 16 6d 6f 76 20 72 31 31 2c 72 31 31 2c 6c 73 6c |.mov r11,r11,lsl|
00001e30 23 31 34 0d 0f 8c 04 0d 0f 96 0d 3b 20 64 63 20 |#14........; dc |
00001e40 3d 20 72 35 0d 0f a0 0d 3b 20 64 75 20 3d 20 72 |= r5....; du = r|
00001e50 36 0d 0f aa 0d 3b 20 64 76 20 3d 20 72 37 0d 0f |6....; dv = r7..|
00001e60 b4 0c 3b 20 76 20 3d 20 72 38 0d 0f be 0c 3b 20 |..; v = r8....; |
00001e70 75 20 3d 20 72 39 0d 0f c8 12 3b 20 73 70 72 69 |u = r9....; spri|
00001e80 74 65 20 3d 20 72 31 30 0d 0f d2 0d 3b 20 63 20 |te = r10....; c |
00001e90 3d 20 72 31 31 0d 0f dc 14 3b 20 6c 65 66 74 5f |= r11....; left_|
00001ea0 61 64 72 20 3d 20 72 31 32 0d 0f e6 15 3b 20 72 |adr = r12....; r|
00001eb0 69 67 68 74 5f 61 64 72 20 3d 20 72 31 33 0d 0f |ight_adr = r13..|
00001ec0 f0 14 3b 20 72 31 20 3d 20 63 6f 6c 20 74 61 62 |..; r1 = col tab|
00001ed0 6c 65 0d 0f fa 04 0d 10 04 0a 2e 78 6c 6f 6f 70 |le.........xloop|
00001ee0 0d 10 0e 16 61 6e 64 20 72 30 2c 72 38 2c 23 32 |....and r0,r8,#2|
00001ef0 35 35 3c 3c 32 34 0d 10 18 16 6f 72 72 20 72 30 |55<<24....orr r0|
00001f00 2c 72 30 2c 72 39 2c 6c 73 72 23 38 0d 10 22 1b |,r0,r9,lsr#8..".|
00001f10 6c 64 72 62 20 72 30 2c 5b 72 31 30 2c 72 30 2c |ldrb r0,[r10,r0,|
00001f20 6c 73 72 23 31 36 5d 0d 10 2c 14 73 74 72 62 20 |lsr#16]..,.strb |
00001f30 72 30 2c 5b 72 31 32 5d 2c 23 31 0d 10 36 0f 63 |r0,[r12],#1..6.c|
00001f40 6d 70 20 72 31 32 2c 72 31 33 0d 10 40 16 61 64 |mp r12,r13..@.ad|
00001f50 64 6c 65 20 72 32 2c 72 32 2c 23 31 3c 3c 33 31 |dle r2,r2,#1<<31|
00001f60 0d 10 4a 18 61 64 64 6c 65 20 72 38 2c 72 38 2c |..J.addle r8,r8,|
00001f70 72 37 2c 61 73 72 23 31 0d 10 54 18 61 64 64 6c |r7,asr#1..T.addl|
00001f80 65 20 72 39 2c 72 39 2c 72 36 2c 61 73 72 23 31 |e r9,r9,r6,asr#1|
00001f90 0d 10 5e 0d 62 6c 65 20 78 6c 6f 6f 70 0d 10 68 |..^.ble xloop..h|
00001fa0 04 0d 10 72 0f 6c 64 72 20 72 32 2c 6c 69 6e 65 |...r.ldr r2,line|
00001fb0 0d 10 7c 10 6c 64 72 20 72 30 2c 79 5f 65 6e 64 |..|.ldr r0,y_end|
00001fc0 0d 10 86 12 61 64 64 20 72 31 34 2c 72 31 34 2c |....add r14,r14,|
00001fd0 23 31 0d 10 90 0e 63 6d 70 20 72 31 34 2c 72 30 |#1....cmp r14,r0|
00001fe0 0d 10 9a 0d 62 6c 74 20 79 6c 6f 6f 70 0d 10 a4 |....blt yloop...|
00001ff0 04 0d 10 ae 05 5d 0d 10 b8 06 3d 30 0d 10 c2 05 |.....]....=0....|
00002000 3a 0d 10 cc 14 dd a4 73 63 72 65 65 6e 61 64 72 |:......screenadr|
00002010 28 62 6b 25 29 0d 10 d6 17 c8 99 22 4f 53 5f 42 |(bk%)......"OS_B|
00002020 79 74 65 22 2c 31 31 32 2c 62 6b 25 0d 10 e0 17 |yte",112,bk%....|
00002030 c8 99 22 4f 53 5f 42 79 74 65 22 2c 31 31 33 2c |.."OS_Byte",113,|
00002040 62 6b 25 0d 10 ea 0a de 20 71 25 20 38 0d 10 f4 |bk%..... q% 8...|
00002050 13 21 71 25 3d 31 34 38 3a 71 25 21 34 3d 2d 31 |.!q%=148:q%!4=-1|
00002060 0d 10 fe 21 c8 99 22 4f 53 5f 52 65 61 64 56 64 |...!.."OS_ReadVd|
00002070 75 56 61 72 69 61 62 6c 65 73 22 2c 71 25 2c 71 |uVariables",q%,q|
00002080 25 0d 11 08 08 3d 21 71 25 0d ff |%....=!q%..|
0000208b 
.