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Misc/sysfont/SysFontSo
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 » Micro User » MU 1991-03.adf » PD-Stuff |
| Filename: | Misc/sysfont/SysFontSo |
| Read OK: | ✔ |
| File size: | 2B5B bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
10REM >SysFontSo - SystemFont module source
20REM by Joris RCALLling LEN 1990
30:
40REM This source generates a module called 'SystemFont', which will
50REM add Alphabets to your system. These Alphabets can be used in
60REM *Alphabet <alphabet name>
70REM Below is a DATA list, add the required font names there, and when
80REM run, this prog will generate the module containg the specified
90REM fonts. The font files must be of type BBC Font (&FF7), and must
100REM contain only 'VDU 23,<char>,n1,n2,n3,n4,n5,n6,n7,n8' sequences.
110REM If not, this prog will complain. Defenitions of chars below
120REM ASCII 32 and of ASCII 127 will be ignored.
130:
140font_dir$ ="@." :REM Where the fonts can be found
150version$ ="1.17"
160number =1024
170alphabet_nr% =25
180code_size% =20*1024 :REM increase this if neccesary
190mod_name$ ="SystemFont"
200:
210PRINT"Generating ";mod_name$;" module v";version$;" - by Joris R�ling"'
220:
230DIM B% 2048
240PROCassemble
250PRINT 'mod_name$;" v";version$;" is ";P%-code%;" bytes long."
260PRINT "Saving it to as 'SystemFont'"'
270SYS "OS_File",10,mod_name$,&FFA,,code%,P%
280OSCLI("RMLOAD "+mod_name$)
290PRINT
300END
310:
320REM The following lines contain the font files to be assembled,
330REM and the name of the Alphabet (if empty, the name is same as file)
340
350DATA "Bold","Bold"
360DATA "Courier",""
370DATA "HiTech",""
380DATA "Italic",""
390DATA "OldIBM","IBM"
400DATA "SmallCaps","SmallCaps"
410DATA "Squad",""
420DATA "Theatrical",""
430DATA "Thin",""
440DATA "$$$" :REM Terminator, must be there
450:
460DEFPROCassemble
470DIM code% code_size%
480pc=15:link=14:sp=13
490FOR pass%=0 TO 2 STEP 2
500P%=code%
510[OPT pass%
520
530;======Module Header==================================================
540 EQUD 0
550 EQUD 0
560 EQUD 0
570 EQUD service -code%
580 EQUD title -code%
590 EQUD helpstring -code%
600 EQUD 0
610 EQUD 0
620 EQUD 0
630 EQUD 0
640 EQUD 0
650;=====================================================================
660
800.title
810;======Title String===================================================
820 EQUS "SystemFont":EQUB 0
830 ALIGN
840;=====================================================================
850
860;======Help String====================================================
870.helpstring
880 EQUS "System Font":EQUB 9
890 EQUS version$+" ("+MID$(TIME$,5,11)+") Joris R�ling"
900 EQUB 0
910 ALIGN
920;=====================================================================
930
940;======Service========================================================
950.service
960TEQ R1,#&43:MOVNES pc,link
970TEQ R2,#1:BEQ conv_alphabet_name_to_alphabet_number
980TEQ R2,#3:BEQ conv_alphabet_number_to_alphabet_name
990TEQ R2,#5:BEQ define_range_of_characters
1000MOVS pc,link
1010;=====================================================================
1020
1030;======Conv alphabet name to alphabet number==========================
1040;On entry R3->Alphabet name
1050;On exit If alphabetname found, Claim call and R4=alphabet nr
1060
1070.conv_alphabet_name_to_alphabet_number
1080 STMFD (sp)!,{R0-R3,link}
1090 MOV R0,R3 ;R0->Alphabet name
1100 ADR R1,defenitions ;R1->First font block
1110.cn_ca_find_def_loop
1120 LDR R2,[R1] ;R2 First word of block
1130 CMP R2,#0 ;Is it null?
1140 LDMEQFD (sp)!,{R0-R3,pc}^ ;Yes, so exit without claiming the call
1150 BL str_cmp ;Compare the two alphabet names
1160 LDRNE R3,[R1,#16] ;R3=Font block length
1170 ADDNE R1,R1,R3 ;Not equal, so incr. r1
1180 BNE cn_ca_find_def_loop ;And check next
1190 LDR R4,[R1,#12] ;Alphabetnames are equal, r4=alphabet nr.
1200 LDMFD (sp)!,{R0-R3,link}
1210 MOV R1,#0 ;Claim call
1220 MOVS pc,link ;bye, bye
1230;=====================================================================
1240
1250;======Conv alphabet number to alphabet name==========================
1260;On entry R3=alphabet nr
1270;On exit If alphabet nr found, Claim call, put name in buffer, R5=str len
1280
1290.conv_alphabet_number_to_alphabet_name
1300 STMFD (sp)!,{R0-R4,link} ;R3=Requested alphabet nr
1310 ADR R1,defenitions ;R1=First font block
1320.ca_cn_find_def_loop
1330 LDR R2,[R1] ;R2=First word of font block
1340 CMP R2,#0 ;Is it Null ?
1350 LDMEQFD (sp)!,{R0-R4,pc} ;Yes, so exit without claiming the call
1360 LDR R2,[R1,#12] ;R2=Alphabet nr.
1370 CMP R2,R3 ;R3=Is R2 requested alphabet nr?
1380 LDRNE R0,[R1,#16] ;R0=Font block length
1390 ADDNE R1,R1,R0 ;No, so inc.font block
1400 BNE ca_cn_find_def_loop ;And check next
1410 ADD R5,R4,#1
1420.str_cpy_loop
1430 LDRB R2,[R1],#1 ;R2=char from source (R1)
1440 STRB R2,[R4],#1 ;Store R2 at destination (R4)
1450 CMP R2,#31 ;Is R2 CTRL char?
1460 BGT str_cpy_loop ;No, loop
1470 SUB R5,R4,R5 ;R5=length of string
1480 LDMFD (sp)!,{R0-R4,link}
1490 MOV R1,#0 ;Claim call
1500 MOVS pc,link ;bye, bye
1510;=====================================================================
1520
1530;======Define range of characters=====================================
1540;On entry R3=alphabet nr, R4=start ASCII nr, R5=end ASCII nr
1550;On exit If alphabet found, define chars, and claim call
1560.define_range_of_characters
1570 STMFD (sp)!,{R0-R9,link}
1580 ADR R1,defenitions ;R1->First font block
1590.find_def_loop
1600 LDR R2,[R1] ;R2=First word of font block
1610 CMP R2,#0 ;Is it Null ?
1620 LDMEQFD (sp)!,{R0-R9,pc}^ ;Yes, so exit without claiming the call
1630 LDR R2,[R1,#12] ;R2=Alphabet nr.
1640 CMP R2,R3 ;R3=Is R2 requested alphabet nr?
1650 LDRNE R0,[R1,#16] ;R0=Font block length
1660 ADDNE R1,R1,R0 ;No, so inc.font block
1670 BNE find_def_loop ;And check next
1680.found
1690 MOV R3,R4 ;R3=First char to define
1700 ADD R2,R1,#20 ;R2->Bits
1710 ADD R1,R1,#52 ;R1->data in font block
1720 MOV R3,#0 ;R3=ASCII 0
1730
1740.find_data_loop
1750 CMP R3,R4 ;Is R3 start char?
1760 BGE data_found ;Yes, R1->good data, continue
1770 BL tst_bit ;Hs this char any data?
1780 ADDNE R1,R1,#8 ;Yes, so data exists, incr. R1
1790 ADD R3,R3,#1 ;Next char
1800 BEQ find_data_loop ;Loop
1810
1820.data_found
1830 MOV R4,R1 ;R4->data of first char to define
1840
1850 BL tst_bit ;Does first char to define have any data?
1860 BEQ no_data ;No, so don"t define
1870.next_char
1880 SWI &100+23 ;VDU 23
1890 MOV R0,R3 ;R3=char to define
1900 SWI "XOS_WriteC" ;VDU char
1910 MOV R0,R4 ;R0->char defenition
1920 MOV R1,#8 ;R1=8 (char defenition is 8 bytes)
1930 SWI "XOS_WriteN" ;VDU n1,n2,n3,n4,n5,n6,n7,n8
1940 ADD R4,R4,#8 ;No, R4->Next char defenition
1950.no_data
1960 ADD R3,R3,#1 ;Increment char
1970 CMP R3,R5 ;Is it higher than Last char to define
1980 BGT def_exit ;Yes, exit
1990 BL tst_bit ;Has current char to define have any data?
2000 BEQ no_data ;No, so don"t define
2010 B next_char ;And loop
2020.def_exit
2030 LDMFD (sp)!,{R0-R9,link}
2040 MOV R1,#0 ;Claim the call
2050 MOVS pc,link ;Bye, bye
2060
2070.tst_bit
2080;R3=CHAR R2->BITS
2090 MOV R7,R3,LSR #3 ;R7 = R3 DIV 8
2100 LDRB R8,[R2,R7] ;R8 = relevant byte
2110 AND R7,R3,#%111 ;R7 = R3 MOD 8
2120 MOV R9,#1
2130 MOV R9,R9,LSL R7 ;R9 = mask
2140 TST R8,R9 ;Is bit set in R8
2150 MOV pc,link ;Bye, bye
2160;=====================================================================
2170
2180;======Str Cmp========================================================
2190;This returns Z=1 if the trings are equal else Z=0
2200;R0=text 1 ptr R1=text 2 ptr
2210.str_cmp
2220 STMFD (sp)!,{R0-R3,link}
2230.str_cmp_loop
2240 LDRB R2,[R0],#1 ;R2=char from string 1
2250 LDRB R3,[R1],#1 ;R3=char from string 2
2260 CMP R2,#32:MOVLE R2,#0
2270 CMP R3,#32:MOVLE R3,#0
2280 ANDGE R2,R2,#&DF
2290 ANDGE R3,R3,#&DF
2300 CMP R2,R3 ;Same ?
2310 LDMNEFD (sp)!,{R0-R3,pc} ;No, Exit
2320 CMP R2,#31
2330 BGE str_cmp_loop ;No, loop
2340 CMP R2,R3 ;Same ?
2350 LDMFD (sp)!,{R0-R3,pc} ;Exit
2360;=====================================================================
2370
2380;======Alphabet defenitions===========================================
2390.defenitions
2400]
2410RESTORE
2420REPEAT
2430 READ fontfile$
2440 IF fontfile$<>"$$$" THEN
2450 READ name$
2460 [OPT pass%
2470 FNfont(fontfile$,name$)
2480 ]
2490 ENDIF
2500UNTIL fontfile$="$$$"
2510
2520[OPT pass%
2530EQUD 0 ;Terminator
2540;=====================================================================
2550]
2560NEXT
2570ENDPROC
2580:
2590DEFFNfont(f$,n$)
2600REM f$=filename n$=font name
2610REM on the first assembly pass it will only create the font block header
2620REM and reserve space for the font defenition.
2630REM A font header is 3 words font name, 1 word font nr
2640
2650IF n$="" THEN n$=f$
2660[OPT pass%
2670FNallign12(n$)
2680EQUD alphabet_nr%
2690]
2700length%=P%:P%+=4 :REM Later we will put the font block length here
2710alphabet_nr%+=1
2720f$=font_dir$+f$
2730IF pass%>0 THEN
2740 SYS "OS_File",5,f$ TO o%,,L%,,l%
2750 IF o%=0 THEN ERROR 0,"Can't find '"+f$+"'"
2760 IF o%=2 THEN ERROR 0,"'"+f$+"' is a directory"
2770 IF ((L%>>8)AND&FFF)<>&FF7 ERROR 0,f$+" is not a BBC Font file"
2780 IF l%>2000 THEN ERROR 0,"Font file '"+f$+"' too big"
2790 SYS "OS_File",&FF,f$,B%,0 :REM Loading file at B%
2800 FOR N%=0 TO 31: P%?N%=0:NEXT :REM Clearing bits
2810
2820 ptr%=B% :REM This will set a char bit
2830 WHILE (ptr%<B%+l%) :REM if it has data
2840 IF (ptr%?1)>31 AND (ptr%?1)<>127 THEN
2850 sptr%=P%+((ptr%?1) DIV 8)
2860 cb%=?sptr%
2870 cb%=cb% OR (1<<((ptr%?1) MOD 8))
2880 ?sptr%=cb%
2890 ENDIF
2900 ptr%+=10
2910 ENDWHILE
2920
2930 x%=POS:y%=VPOS
2940 PRINT;TAB(x%,y%);n$;
2950 bits%=P%
2960 P%+=32
2970 C%=0
2980 FOR N%=0 TO 256
2990 sptr%=bits%+(N% DIV 8)
3000 cb%=?sptr%
3010 IF (cb% AND (1<<(N% MOD 8)))<>0 THEN
3020 PRINTTAB(20,y%);"Char : ";N%;
3030 PROCsearch(N%)
3040 ENDIF
3050 NEXT
3060 !length%=52+C%
3070PRINT
3080ENDIF
3090=pass%
3100:
3110DEFFNallign12(s$)
3120REM This will store the string, padded with CHR$(0) (up to 12 chars)
3130LOCAL fill$
3140IF LENs$>11 THEN ERROR 0,"Fontname '"+n$+"'too big"
3150fill$=STRING$(12-LENs$,CHR$(0))
3160[OPT pass%
3170EQUS s$+fill$
3180]:=pass%
3190:
3200DEFPROCsearch(c%)
3210REM This will search for the existing defenition of a char,
3220REM and put it at P%. This has to be done< as in BBC Font files the
3230REM defenitions can be in any order.
3240LOCAL ptr%,found%,J%
3250found%=FALSE
3260ptr%=B%
3270WHILE (ptr%<B%+l%) AND found%=FALSE
3280 IF ?ptr%<>23 THEN PRINT?ptr%:ERROR 0,"Something wrong in this font file"
3290 ptr%+=1
3300 IF c%=?ptr% THEN
3310 C%+=8
3320 ptr%+=1
3330 FOR J%=0 TO 7
3340 P%?J%=ptr%?J%
3350 NEXT
3360 P%+=8
3370 found%=TRUE
3380 ELSE
3390 ptr%+=1
3400 ENDIF
3410 ptr%+=8
3420ENDWHILE
3430ENDPROC
4� >SysFontSo - SystemFont module source
� by Joris R�ling � 1990
:
(D� This source generates a module called 'SystemFont', which will
2B� add Alphabets to your system. These Alphabets can be used in
< � *Alphabet <alphabet name>
FG� Below is a DATA list, add the required font names there, and when
PD� run, this prog will generate the module containg the specified
ZE� fonts. The font files must be of type BBC Font (&FF7), and must
dE� contain only 'VDU 23,<char>,n1,n2,n3,n4,n5,n6,n7,n8' sequences.
nA� If not, this prog will complain. Defenitions of chars below
x0� ASCII 32 and of ASCII 127 will be ignored.
�:
�?font_dir$ ="@." :� Where the fonts can be found
�version$ ="1.17"
�number =1024
�alphabet_nr% =25
�=code_size% =20*1024 :� increase this if neccesary
� mod_name$ ="SystemFont"
�:
�I�"Generating ";mod_name$;" module v";version$;" - by Joris R�ling"'
�:
�
� B% 2048
�
�assemble
�=� 'mod_name$;" v";version$;" is ";P%-code%;" bytes long."
%� "Saving it to as 'SystemFont'"'
,ș "OS_File",10,mod_name$,&FFA,,code%,P%
�("RMLOAD "+mod_name$)
"�
,�
6:
@A� The following lines contain the font files to be assembled,
JG� and the name of the Alphabet (if empty, the name is same as file)
T
^� "Bold","Bold"
h� "Courier",""
r� "HiTech",""
|� "Italic",""
�� "OldIBM","IBM"
� � "SmallCaps","SmallCaps"
�� "Squad",""
�� "Theatrical",""
�� "Thin",""
�2� "$$$" :REM Terminator, must be there
�:
���assemble
�� code% code_size%
�pc=15:link=14:sp=13
�� pass%=0 � 2 � 2
� P%=code%
�[OPT pass%
J;======Module Header==================================================
EQUD 0
& EQUD 0
0 EQUD 0
: EQUD service -code%
D EQUD title -code%
N EQUD helpstring -code%
X EQUD 0
b EQUD 0
l EQUD 0
v EQUD 0
� EQUD 0
�J;=====================================================================
�
.title
*J;======Title String===================================================
4 EQUS "SystemFont":EQUB 0
>
ALIGN
HJ;=====================================================================
R
\J;======Help String====================================================
f.helpstring
p EQUS "System Font":EQUB 9
z2 EQUS version$+" ("+��$,5,11)+") Joris R�ling"
� EQUB 0
�
ALIGN
�J;=====================================================================
�
�J;======Service========================================================
� .service
� TEQ R1,#&43:MOVNES pc,link
�7TEQ R2,#1:BEQ conv_alphabet_name_to_alphabet_number
�7TEQ R2,#3:BEQ conv_alphabet_number_to_alphabet_name
�,TEQ R2,#5:BEQ define_range_of_characters
�MOVS pc,link
�J;=====================================================================
�
J;======Conv alphabet name to alphabet number==========================
;On entry R3->Alphabet name
C;On exit If alphabetname found, Claim call and R4=alphabet nr
$
.*.conv_alphabet_name_to_alphabet_number
8 STMFD (sp)!,{R0-R3,link}
B2 MOV R0,R3 ;R0->Alphabet name
L5 ADR R1,defenitions ;R1->First font block
V.cn_ca_find_def_loop
`7 LDR R2,[R1] ;R2 First word of block
j, CMP R2,#0 ;Is it null?
tG LDMEQFD (sp)!,{R0-R3,pc}^ ;Yes, so exit without claiming the call
~? BL str_cmp ;Compare the two alphabet names
�5 LDRNE R3,[R1,#16] ;R3=Font block length
�7 ADDNE R1,R1,R3 ;Not equal, so incr. r1
�/ BNE cn_ca_find_def_loop ;And check next
�I LDR R4,[R1,#12] ;Alphabetnames are equal, r4=alphabet nr.
� LDMFD (sp)!,{R0-R3,link}
�+ MOV R1,#0 ;Claim call
�) MOVS pc,link ;bye, bye
�J;=====================================================================
�
�J;======Conv alphabet number to alphabet name==========================
� ;On entry R3=alphabet nr
�M;On exit If alphabet nr found, Claim call, put name in buffer, R5=str len
*.conv_alphabet_number_to_alphabet_name
9 STMFD (sp)!,{R0-R4,link} ;R3=Requested alphabet nr
4 ADR R1,defenitions ;R1=First font block
(.ca_cn_find_def_loop
2< LDR R2,[R1] ;R2=First word of font block
<- CMP R2,#0 ;Is it Null ?
FG LDMEQFD (sp)!,{R0-R4,pc} ;Yes, so exit without claiming the call
P0 LDR R2,[R1,#12] ;R2=Alphabet nr.
Z@ CMP R2,R3 ;R3=Is R2 requested alphabet nr?
d5 LDRNE R0,[R1,#16] ;R0=Font block length
n6 ADDNE R1,R1,R0 ;No, so inc.font block
x/ BNE ca_cn_find_def_loop ;And check next
� ADD R5,R4,#1
�.str_cpy_loop
�8 LDRB R2,[R1],#1 ;R2=char from source (R1)
�< STRB R2,[R4],#1 ;Store R2 at destination (R4)
�0 CMP R2,#31 ;Is R2 CTRL char?
�( BGT str_cpy_loop ;No, loop
�3 SUB R5,R4,R5 ;R5=length of string
� LDMFD (sp)!,{R0-R4,link}
�* MOV R1,#0 ;Claim call
�( MOVS pc,link ;bye, bye
�J;=====================================================================
�
�J;======Define range of characters=====================================
?;On entry R3=alphabet nr, R4=start �II nr, R5=end �II nr
@;On exit If alphabet found, define chars, and claim call
.define_range_of_characters
" STMFD (sp)!,{R0-R9,link}
,4 ADR R1,defenitions ;R1->First font block
6.find_def_loop
@; LDR R2,[R1] ;R2=First word of font block
J, CMP R2,#0 ;Is it Null ?
TG LDMEQFD (sp)!,{R0-R9,pc}^ ;Yes, so exit without claiming the call
^0 LDR R2,[R1,#12] ;R2=Alphabet nr.
h@ CMP R2,R3 ;R3=Is R2 requested alphabet nr?
r5 LDRNE R0,[R1,#16] ;R0=Font block length
|6 ADDNE R1,R1,R0 ;No, so inc.font block
�/ BNE find_def_loop ;And check next
�
.found
�8 MOV R3,R4 ;R3=First char to define
�) ADD R2,R1,#20 ;R2->Bits
�7 ADD R1,R1,#52 ;R1->data in font block
�) MOV R3,#0 ;R3=�II 0
�
�.find_data_loop
�2 CMP R3,R4 ;Is R3 start char?
�= BGE data_found ;Yes, R1->good data, continue
�7 BL tst_bit ;Hs this char any data?
�> ADDNE R1,R1,#8 ;Yes, so data exists, incr. R1
�* ADD R3,R3,#1 ;Next char
% BEQ find_data_loop ;Loop
.data_found
&A MOV R4,R1 ;R4->data of first char to define
0
:I BL tst_bit ;Does first char to define have any data?
D4 BEQ no_data ;No, so don"t define
N.next_char
X% SWI &100+23 ;� 23
b2 MOV R0,R3 ;R3=char to define
l' SWI "XOS_WriteC" ;� char
v4 MOV R0,R4 ;R0->char defenition
�B MOV R1,#8 ;R1=8 (char defenition is 8 bytes)
�: SWI "XOS_WriteN" ;� n1,n2,n3,n4,n5,n6,n7,n8
�= ADD R4,R4,#8 ;No, R4->Next char defenition
� .no_data
�/ ADD R3,R3,#1 ;Increment char
�F CMP R3,R5 ;Is it higher than Last char to define
�* BGT def_exit ;Yes, exit
�J BL tst_bit ;Has current char to define have any data?
�4 BEQ no_data ;No, so don"t define
�) B next_char ;And loop
�
.def_exit
� LDMFD (sp)!,{R0-R9,link}
�/ MOV R1,#0 ;Claim the call
) MOVS pc,link ;Bye, bye
.tst_bit
;R3=CHAR R2->BITS
*, MOV R7,R3,LSR #3 ;R7 = R3 � 8
43 LDRB R8,[R2,R7] ;R8 = relevant byte
>* � R7,R3,#%111 ;R7 = R3 � 8
H MOV R9,#1
R* MOV R9,R9,LSL R7 ;R9 = mask
\1 TST R8,R9 ;Is bit set in R8
f) MOV pc,link ;Bye, bye
pJ;=====================================================================
z
�J;======Str Cmp========================================================
�6;This returns Z=1 if the trings are equal else Z=0
�";R0=text 1 ptr R1=text 2 ptr
� .str_cmp
� STMFD (sp)!,{R0-R3,link}
�.str_cmp_loop
�5 LDRB R2,[R0],#1 ;R2=char from string 1
�5 LDRB R3,[R1],#1 ;R3=char from string 2
� CMP R2,#32:MOVLE R2,#0
� CMP R3,#32:MOVLE R3,#0
� �GE R2,R2,#&DF
� �GE R3,R3,#&DF
�' CMP R2,R3 ;Same ?
) LDMNEFD (sp)!,{R0-R3,pc} ;No, Exit
CMP R2,#31
( BGE str_cmp_loop ;No, loop
$& CMP R2,R3 ;Same ?
.# LDMFD (sp)!,{R0-R3,pc} ;Exit
8J;=====================================================================
B
LJ;======Alphabet defenitions===========================================
V.defenitions
`]
j�
t�
~ � fontfile$
� � fontfile$<>"$$$" �
� � name$
� [OPT pass%
� �font(fontfile$,name$)
� ]
� �
�� fontfile$="$$$"
�
�[OPT pass%
�-EQUD 0 ;Terminator
�J;=====================================================================
�]
�
�
:
ݤfont(f$,n$)
($� f$=filename n$=font name
2J� on the first assembly pass it will only create the font block header
<0� and reserve space for the font defenition.
F8� A font header is 3 words font name, 1 word font nr
P
Z� n$="" � n$=f$
d[OPT pass%
n�allign12(n$)
xEQUD alphabet_nr%
�]
�Glength%=P%:P%+=4 :� Later we will put the font block length here
�alphabet_nr%+=1
�f$=font_dir$+f$
�� pass%>0 �
�$ ș "OS_File",5,f$ � o%,,L%,,l%
�( � o%=0 � � 0,"Can't find '"+f$+"'"
�, � o%=2 � � 0,"'"+f$+"' is a directory"
�= � ((L%>>8)�&FFF)<>&FF7 � 0,f$+" is not a BBC Font file"
�2 � l%>2000 � � 0,"Font file '"+f$+"' too big"
�9 ș "OS_File",&FF,f$,B%,0 :� Loading file at B%
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00000e80 20 20 4d 4f 56 53 20 70 63 2c 6c 69 6e 6b 20 20 | MOVS pc,link |
00000e90 20 20 20 20 20 20 20 20 20 20 20 20 3b 62 79 65 | ;bye|
00000ea0 2c 20 62 79 65 0d 04 ce 4a 3b 3d 3d 3d 3d 3d 3d |, bye...J;======|
00000eb0 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d |================|
*
00000ee0 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 0d |===============.|
00000ef0 04 d8 04 0d 04 e2 4a 3b 3d 3d 3d 3d 3d 3d 43 6f |......J;======Co|
00000f00 6e 76 20 61 6c 70 68 61 62 65 74 20 6e 75 6d 62 |nv alphabet numb|
00000f10 65 72 20 74 6f 20 61 6c 70 68 61 62 65 74 20 6e |er to alphabet n|
00000f20 61 6d 65 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d |ame=============|
00000f30 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 0d 04 ec |=============...|
00000f40 1d 3b 4f 6e 20 65 6e 74 72 79 20 20 52 33 3d 61 |.;On entry R3=a|
00000f50 6c 70 68 61 62 65 74 20 6e 72 0d 04 f6 4d 3b 4f |lphabet nr...M;O|
00000f60 6e 20 65 78 69 74 20 49 66 20 61 6c 70 68 61 62 |n exit If alphab|
00000f70 65 74 20 6e 72 20 66 6f 75 6e 64 2c 20 43 6c 61 |et nr found, Cla|
00000f80 69 6d 20 63 61 6c 6c 2c 20 70 75 74 20 6e 61 6d |im call, put nam|
00000f90 65 20 69 6e 20 62 75 66 66 65 72 2c 20 52 35 3d |e in buffer, R5=|
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00000fb0 63 6f 6e 76 5f 61 6c 70 68 61 62 65 74 5f 6e 75 |conv_alphabet_nu|
00000fc0 6d 62 65 72 5f 74 6f 5f 61 6c 70 68 61 62 65 74 |mber_to_alphabet|
00000fd0 5f 6e 61 6d 65 0d 05 14 39 20 20 53 54 4d 46 44 |_name...9 STMFD|
00000fe0 20 28 73 70 29 21 2c 7b 52 30 2d 52 34 2c 6c 69 | (sp)!,{R0-R4,li|
00000ff0 6e 6b 7d 20 20 3b 52 33 3d 52 65 71 75 65 73 74 |nk} ;R3=Request|
00001000 65 64 20 61 6c 70 68 61 62 65 74 20 6e 72 0d 05 |ed alphabet nr..|
00001010 1e 34 20 20 41 44 52 20 52 31 2c 64 65 66 65 6e |.4 ADR R1,defen|
00001020 69 74 69 6f 6e 73 20 20 20 20 20 20 20 20 3b 52 |itions ;R|
00001030 31 3d 46 69 72 73 74 20 66 6f 6e 74 20 62 6c 6f |1=First font blo|
00001040 63 6b 0d 05 28 18 2e 63 61 5f 63 6e 5f 66 69 6e |ck..(..ca_cn_fin|
00001050 64 5f 64 65 66 5f 6c 6f 6f 70 0d 05 32 3c 20 20 |d_def_loop..2< |
00001060 4c 44 52 20 52 32 2c 5b 52 31 5d 20 20 20 20 20 |LDR R2,[R1] |
00001070 20 20 20 20 20 20 20 20 20 20 3b 52 32 3d 46 69 | ;R2=Fi|
00001080 72 73 74 20 77 6f 72 64 20 6f 66 20 66 6f 6e 74 |rst word of font|
00001090 20 62 6c 6f 63 6b 0d 05 3c 2d 20 20 43 4d 50 20 | block..<- CMP |
000010a0 52 32 2c 23 30 20 20 20 20 20 20 20 20 20 20 20 |R2,#0 |
000010b0 20 20 20 20 20 20 3b 49 73 20 69 74 20 4e 75 6c | ;Is it Nul|
000010c0 6c 20 3f 0d 05 46 47 20 20 4c 44 4d 45 51 46 44 |l ?..FG LDMEQFD|
000010d0 20 28 73 70 29 21 2c 7b 52 30 2d 52 34 2c 70 63 | (sp)!,{R0-R4,pc|
000010e0 7d 20 20 3b 59 65 73 2c 20 73 6f 20 65 78 69 74 |} ;Yes, so exit|
000010f0 20 77 69 74 68 6f 75 74 20 63 6c 61 69 6d 69 6e | without claimin|
00001100 67 20 74 68 65 20 63 61 6c 6c 0d 05 50 30 20 20 |g the call..P0 |
00001110 4c 44 52 20 52 32 2c 5b 52 31 2c 23 31 32 5d 20 |LDR R2,[R1,#12] |
00001120 20 20 20 20 20 20 20 20 20 20 3b 52 32 3d 41 6c | ;R2=Al|
00001130 70 68 61 62 65 74 20 6e 72 2e 0d 05 5a 40 20 20 |phabet nr...Z@ |
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00001160 20 52 32 20 72 65 71 75 65 73 74 65 64 20 61 6c | R2 requested al|
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000011c0 2c 52 30 20 20 20 20 20 20 20 20 20 20 20 20 3b |,R0 ;|
000011d0 4e 6f 2c 20 73 6f 20 69 6e 63 2e 66 6f 6e 74 20 |No, so inc.font |
000011e0 62 6c 6f 63 6b 0d 05 78 2f 20 20 42 4e 45 20 63 |block..x/ BNE c|
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00001200 6f 70 20 20 20 3b 41 6e 64 20 63 68 65 63 6b 20 |op ;And check |
00001210 6e 65 78 74 0d 05 82 12 20 20 41 44 44 20 52 35 |next.... ADD R5|
00001220 2c 52 34 2c 23 31 0d 05 8c 11 2e 73 74 72 5f 63 |,R4,#1.....str_c|
00001230 70 79 5f 6c 6f 6f 70 0d 05 96 38 20 20 4c 44 52 |py_loop...8 LDR|
00001240 42 20 52 32 2c 5b 52 31 5d 2c 23 31 20 20 20 20 |B R2,[R1],#1 |
00001250 20 20 20 20 20 20 3b 52 32 3d 63 68 61 72 20 66 | ;R2=char f|
00001260 72 6f 6d 20 73 6f 75 72 63 65 20 28 52 31 29 0d |rom source (R1).|
00001270 05 a0 3c 20 20 53 54 52 42 20 52 32 2c 5b 52 34 |..< STRB R2,[R4|
00001280 5d 2c 23 31 20 20 20 20 20 20 20 20 20 20 3b 53 |],#1 ;S|
00001290 74 6f 72 65 20 52 32 20 61 74 20 64 65 73 74 69 |tore R2 at desti|
000012a0 6e 61 74 69 6f 6e 20 28 52 34 29 0d 05 aa 30 20 |nation (R4)...0 |
000012b0 20 43 4d 50 20 52 32 2c 23 33 31 20 20 20 20 20 | CMP R2,#31 |
000012c0 20 20 20 20 20 20 20 20 20 20 3b 49 73 20 52 32 | ;Is R2|
000012d0 20 43 54 52 4c 20 63 68 61 72 3f 0d 05 b4 28 20 | CTRL char?...( |
000012e0 20 42 47 54 20 73 74 72 5f 63 70 79 5f 6c 6f 6f | BGT str_cpy_loo|
000012f0 70 20 20 20 20 20 20 20 20 20 3b 4e 6f 2c 20 6c |p ;No, l|
00001300 6f 6f 70 0d 05 be 33 20 20 53 55 42 20 52 35 2c |oop...3 SUB R5,|
00001310 52 34 2c 52 35 20 20 20 20 20 20 20 20 20 20 20 |R4,R5 |
00001320 20 20 3b 52 35 3d 6c 65 6e 67 74 68 20 6f 66 20 | ;R5=length of |
00001330 73 74 72 69 6e 67 0d 05 c8 1e 20 20 4c 44 4d 46 |string.... LDMF|
00001340 44 20 28 73 70 29 21 2c 7b 52 30 2d 52 34 2c 6c |D (sp)!,{R0-R4,l|
00001350 69 6e 6b 7d 0d 05 d2 2a 20 20 4d 4f 56 20 52 31 |ink}...* MOV R1|
00001360 2c 23 30 20 20 20 20 20 20 20 20 20 20 20 20 20 |,#0 |
00001370 20 20 20 3b 43 6c 61 69 6d 20 63 61 6c 6c 0d 05 | ;Claim call..|
00001380 dc 28 20 20 4d 4f 56 53 20 70 63 2c 6c 69 6e 6b |.( MOVS pc,link|
00001390 20 20 20 20 20 20 20 20 20 20 20 20 20 3b 62 79 | ;by|
000013a0 65 2c 20 62 79 65 0d 05 e6 4a 3b 3d 3d 3d 3d 3d |e, bye...J;=====|
000013b0 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d |================|
*
000013f0 0d 05 f0 04 0d 05 fa 4a 3b 3d 3d 3d 3d 3d 3d 44 |.......J;======D|
00001400 65 66 69 6e 65 20 72 61 6e 67 65 20 6f 66 20 63 |efine range of c|
00001410 68 61 72 61 63 74 65 72 73 3d 3d 3d 3d 3d 3d 3d |haracters=======|
00001420 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d |================|
00001430 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 0d 06 |==============..|
00001440 04 3f 3b 4f 6e 20 65 6e 74 72 79 20 20 20 20 52 |.?;On entry R|
00001450 33 3d 61 6c 70 68 61 62 65 74 20 6e 72 2c 20 52 |3=alphabet nr, R|
00001460 34 3d 73 74 61 72 74 20 97 49 49 20 6e 72 2c 20 |4=start .II nr, |
00001470 52 35 3d 65 6e 64 20 97 49 49 20 6e 72 0d 06 0e |R5=end .II nr...|
00001480 40 3b 4f 6e 20 65 78 69 74 20 20 20 20 20 49 66 |@;On exit If|
00001490 20 61 6c 70 68 61 62 65 74 20 66 6f 75 6e 64 2c | alphabet found,|
000014a0 20 64 65 66 69 6e 65 20 63 68 61 72 73 2c 20 61 | define chars, a|
000014b0 6e 64 20 63 6c 61 69 6d 20 63 61 6c 6c 0d 06 18 |nd claim call...|
000014c0 1f 2e 64 65 66 69 6e 65 5f 72 61 6e 67 65 5f 6f |..define_range_o|
000014d0 66 5f 63 68 61 72 61 63 74 65 72 73 0d 06 22 1e |f_characters..".|
000014e0 20 20 53 54 4d 46 44 20 28 73 70 29 21 2c 7b 52 | STMFD (sp)!,{R|
000014f0 30 2d 52 39 2c 6c 69 6e 6b 7d 0d 06 2c 34 20 20 |0-R9,link}..,4 |
00001500 41 44 52 20 52 31 2c 64 65 66 65 6e 69 74 69 6f |ADR R1,defenitio|
00001510 6e 73 20 20 20 20 20 20 20 3b 52 31 2d 3e 46 69 |ns ;R1->Fi|
00001520 72 73 74 20 66 6f 6e 74 20 62 6c 6f 63 6b 0d 06 |rst font block..|
00001530 36 12 2e 66 69 6e 64 5f 64 65 66 5f 6c 6f 6f 70 |6..find_def_loop|
00001540 0d 06 40 3b 20 20 4c 44 52 20 52 32 2c 5b 52 31 |..@; LDR R2,[R1|
00001550 5d 20 20 20 20 20 20 20 20 20 20 20 20 20 20 3b |] ;|
00001560 52 32 3d 46 69 72 73 74 20 77 6f 72 64 20 6f 66 |R2=First word of|
00001570 20 66 6f 6e 74 20 62 6c 6f 63 6b 0d 06 4a 2c 20 | font block..J, |
00001580 20 43 4d 50 20 52 32 2c 23 30 20 20 20 20 20 20 | CMP R2,#0 |
00001590 20 20 20 20 20 20 20 20 20 20 3b 49 73 20 69 74 | ;Is it|
000015a0 20 4e 75 6c 6c 20 3f 0d 06 54 47 20 20 4c 44 4d | Null ?..TG LDM|
000015b0 45 51 46 44 20 28 73 70 29 21 2c 7b 52 30 2d 52 |EQFD (sp)!,{R0-R|
000015c0 39 2c 70 63 7d 5e 20 3b 59 65 73 2c 20 73 6f 20 |9,pc}^ ;Yes, so |
000015d0 65 78 69 74 20 77 69 74 68 6f 75 74 20 63 6c 61 |exit without cla|
000015e0 69 6d 69 6e 67 20 74 68 65 20 63 61 6c 6c 0d 06 |iming the call..|
000015f0 5e 30 20 20 4c 44 52 20 52 32 2c 5b 52 31 2c 23 |^0 LDR R2,[R1,#|
00001600 31 32 5d 20 20 20 20 20 20 20 20 20 20 20 3b 52 |12] ;R|
00001610 32 3d 41 6c 70 68 61 62 65 74 20 6e 72 2e 0d 06 |2=Alphabet nr...|
00001620 68 40 20 20 43 4d 50 20 52 32 2c 52 33 20 20 20 |h@ CMP R2,R3 |
00001630 20 20 20 20 20 20 20 20 20 20 20 20 20 20 3b 52 | ;R|
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00001650 64 20 61 6c 70 68 61 62 65 74 20 6e 72 3f 0d 06 |d alphabet nr?..|
00001660 72 35 20 20 4c 44 52 4e 45 20 52 30 2c 5b 52 31 |r5 LDRNE R0,[R1|
00001670 2c 23 31 36 5d 20 20 20 20 20 20 20 20 20 3b 52 |,#16] ;R|
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000016a0 31 2c 52 31 2c 52 30 20 20 20 20 20 20 20 20 20 |1,R1,R0 |
000016b0 20 20 20 3b 4e 6f 2c 20 73 6f 20 69 6e 63 2e 66 | ;No, so inc.f|
000016c0 6f 6e 74 20 62 6c 6f 63 6b 0d 06 86 2f 20 20 42 |ont block.../ B|
000016d0 4e 45 20 66 69 6e 64 5f 64 65 66 5f 6c 6f 6f 70 |NE find_def_loop|
000016e0 20 20 20 20 20 20 20 20 20 3b 41 6e 64 20 63 68 | ;And ch|
000016f0 65 63 6b 20 6e 65 78 74 0d 06 90 0a 2e 66 6f 75 |eck next.....fou|
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00001710 34 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |4 |
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00001740 41 44 44 20 52 32 2c 52 31 2c 23 32 30 20 20 20 |ADD R2,R1,#20 |
00001750 20 20 20 20 20 20 20 20 20 20 3b 52 32 2d 3e 42 | ;R2->B|
00001760 69 74 73 0d 06 ae 37 20 20 41 44 44 20 52 31 2c |its...7 ADD R1,|
00001770 52 31 2c 23 35 32 20 20 20 20 20 20 20 20 20 20 |R1,#52 |
00001780 20 20 20 3b 52 31 2d 3e 64 61 74 61 20 69 6e 20 | ;R1->data in |
00001790 66 6f 6e 74 20 62 6c 6f 63 6b 0d 06 b8 29 20 20 |font block...) |
000017a0 4d 4f 56 20 52 33 2c 23 30 20 20 20 20 20 20 20 |MOV R3,#0 |
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000017c0 49 20 30 0d 06 c2 04 0d 06 cc 13 2e 66 69 6e 64 |I 0.........find|
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00001810 20 20 42 47 45 20 64 61 74 61 5f 66 6f 75 6e 64 | BGE data_found|
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00001840 20 63 6f 6e 74 69 6e 75 65 0d 06 ea 37 20 20 42 | continue...7 B|
00001850 4c 20 74 73 74 5f 62 69 74 20 20 20 20 20 20 20 |L tst_bit |
00001860 20 20 20 20 20 20 20 20 20 3b 48 73 20 74 68 69 | ;Hs thi|
00001870 73 20 63 68 61 72 20 61 6e 79 20 64 61 74 61 3f |s char any data?|
00001880 0d 06 f4 3e 20 20 41 44 44 4e 45 20 52 31 2c 52 |...> ADDNE R1,R|
00001890 31 2c 23 38 20 20 20 20 20 20 20 20 20 20 20 20 |1,#8 |
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000018d0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 3b 4e | ;N|
000018e0 65 78 74 20 63 68 61 72 0d 07 08 25 20 20 42 45 |ext char...% BE|
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00001930 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
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00001950 73 74 20 63 68 61 72 20 74 6f 20 64 65 66 69 6e |st char to defin|
00001960 65 0d 07 30 04 0d 07 3a 49 20 20 42 4c 20 74 73 |e..0...:I BL ts|
00001970 74 5f 62 69 74 20 20 20 20 20 20 20 20 20 20 20 |t_bit |
00001980 20 20 20 20 20 3b 44 6f 65 73 20 66 69 72 73 74 | ;Does first|
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000019a0 68 61 76 65 20 61 6e 79 20 64 61 74 61 3f 0d 07 |have any data?..|
000019b0 44 34 20 20 42 45 51 20 6e 6f 5f 64 61 74 61 20 |D4 BEQ no_data |
000019c0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 3b 4e | ;N|
000019d0 6f 2c 20 73 6f 20 64 6f 6e 22 74 20 64 65 66 69 |o, so don"t defi|
000019e0 6e 65 0d 07 4e 0e 2e 6e 65 78 74 5f 63 68 61 72 |ne..N..next_char|
000019f0 0d 07 58 25 20 20 53 57 49 20 26 31 30 30 2b 32 |..X% SWI &100+2|
00001a00 33 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |3 |
00001a10 3b ef 20 32 33 0d 07 62 32 20 20 4d 4f 56 20 52 |;. 23..b2 MOV R|
00001a20 30 2c 52 33 20 20 20 20 20 20 20 20 20 20 20 20 |0,R3 |
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00001a40 20 64 65 66 69 6e 65 0d 07 6c 27 20 20 53 57 49 | define..l' SWI|
00001a50 20 22 58 4f 53 5f 57 72 69 74 65 43 22 20 20 20 | "XOS_WriteC" |
00001a60 20 20 20 20 20 20 20 3b ef 20 63 68 61 72 0d 07 | ;. char..|
00001a70 76 34 20 20 4d 4f 56 20 52 30 2c 52 34 20 20 20 |v4 MOV R0,R4 |
00001a80 20 20 20 20 20 20 20 20 20 20 20 20 20 20 3b 52 | ;R|
00001a90 30 2d 3e 63 68 61 72 20 64 65 66 65 6e 69 74 69 |0->char defeniti|
00001aa0 6f 6e 0d 07 80 42 20 20 4d 4f 56 20 52 31 2c 23 |on...B MOV R1,#|
00001ab0 38 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |8 |
00001ac0 20 20 3b 52 31 3d 38 20 28 63 68 61 72 20 64 65 | ;R1=8 (char de|
00001ad0 66 65 6e 69 74 69 6f 6e 20 69 73 20 38 20 62 79 |fenition is 8 by|
00001ae0 74 65 73 29 0d 07 8a 3a 20 20 53 57 49 20 22 58 |tes)...: SWI "X|
00001af0 4f 53 5f 57 72 69 74 65 4e 22 20 20 20 20 20 20 |OS_WriteN" |
00001b00 20 20 20 20 3b ef 20 6e 31 2c 6e 32 2c 6e 33 2c | ;. n1,n2,n3,|
00001b10 6e 34 2c 6e 35 2c 6e 36 2c 6e 37 2c 6e 38 0d 07 |n4,n5,n6,n7,n8..|
00001b20 94 3d 20 20 41 44 44 20 52 34 2c 52 34 2c 23 38 |.= ADD R4,R4,#8|
00001b30 20 20 20 20 20 20 20 20 20 20 20 20 20 20 3b 4e | ;N|
00001b40 6f 2c 20 52 34 2d 3e 4e 65 78 74 20 63 68 61 72 |o, R4->Next char|
00001b50 20 64 65 66 65 6e 69 74 69 6f 6e 0d 07 9e 0c 2e | defenition.....|
00001b60 6e 6f 5f 64 61 74 61 0d 07 a8 2f 20 20 41 44 44 |no_data.../ ADD|
00001b70 20 52 33 2c 52 33 2c 23 31 20 20 20 20 20 20 20 | R3,R3,#1 |
00001b80 20 20 20 20 20 20 20 3b 49 6e 63 72 65 6d 65 6e | ;Incremen|
00001b90 74 20 63 68 61 72 0d 07 b2 46 20 20 43 4d 50 20 |t char...F CMP |
00001ba0 52 33 2c 52 35 20 20 20 20 20 20 20 20 20 20 20 |R3,R5 |
00001bb0 20 20 20 20 20 20 3b 49 73 20 69 74 20 68 69 67 | ;Is it hig|
00001bc0 68 65 72 20 74 68 61 6e 20 4c 61 73 74 20 63 68 |her than Last ch|
00001bd0 61 72 20 74 6f 20 64 65 66 69 6e 65 0d 07 bc 2a |ar to define...*|
00001be0 20 20 42 47 54 20 64 65 66 5f 65 78 69 74 20 20 | BGT def_exit |
00001bf0 20 20 20 20 20 20 20 20 20 20 20 20 3b 59 65 73 | ;Yes|
00001c00 2c 20 65 78 69 74 0d 07 c6 4a 20 20 42 4c 20 74 |, exit...J BL t|
00001c10 73 74 5f 62 69 74 20 20 20 20 20 20 20 20 20 20 |st_bit |
00001c20 20 20 20 20 20 20 3b 48 61 73 20 63 75 72 72 65 | ;Has curre|
00001c30 6e 74 20 63 68 61 72 20 74 6f 20 64 65 66 69 6e |nt char to defin|
00001c40 65 20 68 61 76 65 20 61 6e 79 20 64 61 74 61 3f |e have any data?|
00001c50 0d 07 d0 34 20 20 42 45 51 20 6e 6f 5f 64 61 74 |...4 BEQ no_dat|
00001c60 61 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |a |
00001c70 3b 4e 6f 2c 20 73 6f 20 64 6f 6e 22 74 20 64 65 |;No, so don"t de|
00001c80 66 69 6e 65 0d 07 da 29 20 20 42 20 6e 65 78 74 |fine...) B next|
00001c90 5f 63 68 61 72 20 20 20 20 20 20 20 20 20 20 20 |_char |
00001ca0 20 20 20 20 3b 41 6e 64 20 6c 6f 6f 70 0d 07 e4 | ;And loop...|
00001cb0 0d 2e 64 65 66 5f 65 78 69 74 0d 07 ee 1e 20 20 |..def_exit.... |
00001cc0 4c 44 4d 46 44 20 28 73 70 29 21 2c 7b 52 30 2d |LDMFD (sp)!,{R0-|
00001cd0 52 39 2c 6c 69 6e 6b 7d 0d 07 f8 2f 20 20 4d 4f |R9,link}.../ MO|
00001ce0 56 20 52 31 2c 23 30 20 20 20 20 20 20 20 20 20 |V R1,#0 |
00001cf0 20 20 20 20 20 20 20 20 3b 43 6c 61 69 6d 20 74 | ;Claim t|
00001d00 68 65 20 63 61 6c 6c 0d 08 02 29 20 20 4d 4f 56 |he call...) MOV|
00001d10 53 20 70 63 2c 6c 69 6e 6b 20 20 20 20 20 20 20 |S pc,link |
00001d20 20 20 20 20 20 20 20 3b 42 79 65 2c 20 62 79 65 | ;Bye, bye|
00001d30 0d 08 0c 04 0d 08 16 0c 2e 74 73 74 5f 62 69 74 |.........tst_bit|
00001d40 0d 08 20 18 3b 52 33 3d 43 48 41 52 20 20 20 20 |.. .;R3=CHAR |
00001d50 52 32 2d 3e 42 49 54 53 0d 08 2a 2c 20 20 4d 4f |R2->BITS..*, MO|
00001d60 56 20 52 37 2c 52 33 2c 4c 53 52 20 23 33 20 20 |V R7,R3,LSR #3 |
00001d70 20 20 20 20 20 20 20 20 3b 52 37 20 3d 20 52 33 | ;R7 = R3|
00001d80 20 81 20 38 0d 08 34 33 20 20 4c 44 52 42 20 52 | . 8..43 LDRB R|
00001d90 38 2c 5b 52 32 2c 52 37 5d 20 20 20 20 20 20 20 |8,[R2,R7] |
00001da0 20 20 20 20 3b 52 38 20 3d 20 72 65 6c 65 76 61 | ;R8 = releva|
00001db0 6e 74 20 62 79 74 65 0d 08 3e 2a 20 20 80 20 52 |nt byte..>* . R|
00001dc0 37 2c 52 33 2c 23 25 31 31 31 20 20 20 20 20 20 |7,R3,#%111 |
00001dd0 20 20 20 20 20 3b 52 37 20 3d 20 52 33 20 83 20 | ;R7 = R3 . |
00001de0 38 0d 08 48 0f 20 20 4d 4f 56 20 52 39 2c 23 31 |8..H. MOV R9,#1|
00001df0 0d 08 52 2a 20 20 4d 4f 56 20 52 39 2c 52 39 2c |..R* MOV R9,R9,|
00001e00 4c 53 4c 20 52 37 20 20 20 20 20 20 20 20 20 20 |LSL R7 |
00001e10 3b 52 39 20 3d 20 6d 61 73 6b 0d 08 5c 31 20 20 |;R9 = mask..\1 |
00001e20 54 53 54 20 52 38 2c 52 39 20 20 20 20 20 20 20 |TST R8,R9 |
00001e30 20 20 20 20 20 20 20 20 20 20 3b 49 73 20 62 69 | ;Is bi|
00001e40 74 20 73 65 74 20 69 6e 20 52 38 0d 08 66 29 20 |t set in R8..f) |
00001e50 20 4d 4f 56 20 70 63 2c 6c 69 6e 6b 20 20 20 20 | MOV pc,link |
00001e60 20 20 20 20 20 20 20 20 20 20 20 3b 42 79 65 2c | ;Bye,|
00001e70 20 62 79 65 0d 08 70 4a 3b 3d 3d 3d 3d 3d 3d 3d | bye..pJ;=======|
00001e80 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d |================|
*
00001eb0 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 0d 08 |==============..|
00001ec0 7a 04 0d 08 84 4a 3b 3d 3d 3d 3d 3d 3d 53 74 72 |z....J;======Str|
00001ed0 20 43 6d 70 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d | Cmp============|
00001ee0 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d |================|
*
00001f00 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 0d 08 8e 36 |============...6|
00001f10 3b 54 68 69 73 20 72 65 74 75 72 6e 73 20 5a 3d |;This returns Z=|
00001f20 31 20 69 66 20 74 68 65 20 74 72 69 6e 67 73 20 |1 if the trings |
00001f30 61 72 65 20 65 71 75 61 6c 20 65 6c 73 65 20 5a |are equal else Z|
00001f40 3d 30 0d 08 98 22 3b 52 30 3d 74 65 78 74 20 31 |=0...";R0=text 1|
00001f50 20 70 74 72 20 20 20 52 31 3d 74 65 78 74 20 32 | ptr R1=text 2|
00001f60 20 70 74 72 0d 08 a2 0c 2e 73 74 72 5f 63 6d 70 | ptr.....str_cmp|
00001f70 0d 08 ac 1e 20 20 53 54 4d 46 44 20 28 73 70 29 |.... STMFD (sp)|
00001f80 21 2c 7b 52 30 2d 52 33 2c 6c 69 6e 6b 7d 0d 08 |!,{R0-R3,link}..|
00001f90 b6 11 2e 73 74 72 5f 63 6d 70 5f 6c 6f 6f 70 0d |...str_cmp_loop.|
00001fa0 08 c0 35 20 20 4c 44 52 42 20 52 32 2c 5b 52 30 |..5 LDRB R2,[R0|
00001fb0 5d 2c 23 31 20 20 20 20 20 20 20 20 20 20 3b 52 |],#1 ;R|
00001fc0 32 3d 63 68 61 72 20 66 72 6f 6d 20 73 74 72 69 |2=char from stri|
00001fd0 6e 67 20 31 0d 08 ca 35 20 20 4c 44 52 42 20 52 |ng 1...5 LDRB R|
00001fe0 33 2c 5b 52 31 5d 2c 23 31 20 20 20 20 20 20 20 |3,[R1],#1 |
00001ff0 20 20 20 3b 52 33 3d 63 68 61 72 20 66 72 6f 6d | ;R3=char from|
00002000 20 73 74 72 69 6e 67 20 32 0d 08 d4 1c 20 20 43 | string 2.... C|
00002010 4d 50 20 52 32 2c 23 33 32 3a 4d 4f 56 4c 45 20 |MP R2,#32:MOVLE |
00002020 52 32 2c 23 30 0d 08 de 1c 20 20 43 4d 50 20 52 |R2,#0.... CMP R|
00002030 33 2c 23 33 32 3a 4d 4f 56 4c 45 20 52 33 2c 23 |3,#32:MOVLE R3,#|
00002040 30 0d 08 e8 14 20 20 80 47 45 20 52 32 2c 52 32 |0.... .GE R2,R2|
00002050 2c 23 26 44 46 0d 08 f2 14 20 20 80 47 45 20 52 |,#&DF.... .GE R|
00002060 33 2c 52 33 2c 23 26 44 46 0d 08 fc 27 20 20 43 |3,R3,#&DF...' C|
00002070 4d 50 20 52 32 2c 52 33 20 20 20 20 20 20 20 20 |MP R2,R3 |
00002080 20 20 20 20 20 20 20 20 20 3b 53 61 6d 65 20 3f | ;Same ?|
00002090 0d 09 06 29 20 20 4c 44 4d 4e 45 46 44 20 28 73 |...) LDMNEFD (s|
000020a0 70 29 21 2c 7b 52 30 2d 52 33 2c 70 63 7d 20 20 |p)!,{R0-R3,pc} |
000020b0 3b 4e 6f 2c 20 45 78 69 74 0d 09 10 10 20 20 43 |;No, Exit.... C|
000020c0 4d 50 20 52 32 2c 23 33 31 0d 09 1a 28 20 20 42 |MP R2,#31...( B|
000020d0 47 45 20 73 74 72 5f 63 6d 70 5f 6c 6f 6f 70 20 |GE str_cmp_loop |
000020e0 20 20 20 20 20 20 20 20 3b 4e 6f 2c 20 6c 6f 6f | ;No, loo|
000020f0 70 0d 09 24 26 20 20 43 4d 50 20 52 32 2c 52 33 |p..$& CMP R2,R3|
00002100 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
00002110 3b 53 61 6d 65 20 3f 0d 09 2e 23 20 20 4c 44 4d |;Same ?...# LDM|
00002120 46 44 20 28 73 70 29 21 2c 7b 52 30 2d 52 33 2c |FD (sp)!,{R0-R3,|
00002130 70 63 7d 20 20 3b 45 78 69 74 0d 09 38 4a 3b 3d |pc} ;Exit..8J;=|
00002140 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d |================|
*
00002180 3d 3d 3d 3d 0d 09 42 04 0d 09 4c 4a 3b 3d 3d 3d |====..B...LJ;===|
00002190 3d 3d 3d 41 6c 70 68 61 62 65 74 20 64 65 66 65 |===Alphabet defe|
000021a0 6e 69 74 69 6f 6e 73 3d 3d 3d 3d 3d 3d 3d 3d 3d |nitions=========|
000021b0 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d |================|
*
000021d0 3d 3d 0d 09 56 10 2e 64 65 66 65 6e 69 74 69 6f |==..V..defenitio|
000021e0 6e 73 0d 09 60 05 5d 0d 09 6a 05 f7 0d 09 74 05 |ns..`.]..j....t.|
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00002200 65 24 0d 09 88 1a 20 20 e7 20 66 6f 6e 74 66 69 |e$.... . fontfi|
00002210 6c 65 24 3c 3e 22 24 24 24 22 20 8c 0d 09 92 0f |le$<>"$$$" .....|
00002220 20 20 20 20 f3 20 6e 61 6d 65 24 0d 09 9c 12 20 | . name$.... |
00002230 20 20 20 5b 4f 50 54 20 70 61 73 73 25 0d 09 a6 | [OPT pass%...|
00002240 1e 20 20 20 20 a4 66 6f 6e 74 28 66 6f 6e 74 66 |. .font(fontf|
00002250 69 6c 65 24 2c 6e 61 6d 65 24 29 0d 09 b0 09 20 |ile$,name$).... |
00002260 20 20 20 5d 0d 09 ba 07 20 20 cd 0d 09 c4 15 fd | ].... ......|
00002270 20 66 6f 6e 74 66 69 6c 65 24 3d 22 24 24 24 22 | fontfile$="$$$"|
00002280 0d 09 ce 04 0d 09 d8 0e 5b 4f 50 54 20 70 61 73 |........[OPT pas|
00002290 73 25 0d 09 e2 2d 45 51 55 44 20 30 20 20 20 20 |s%...-EQUD 0 |
000022a0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
000022b0 20 20 20 20 3b 54 65 72 6d 69 6e 61 74 6f 72 0d | ;Terminator.|
000022c0 09 ec 4a 3b 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d |..J;============|
000022d0 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d |================|
*
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00002310 00 05 ed 0d 0a 0a 05 e1 0d 0a 14 05 3a 0d 0a 1e |............:...|
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*
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00002b5b 
.