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Text File | 1998-10-18 | 32.5 KB | 843 lines

exp-basic.src......page 0001 line# loc code line 0001 0000 ;***************************************** 0002 0000 ;* eeeee x x pppp aaa n n dddd * 0003 0000 ;* e x x p p a a nn n d d * 0004 0000 ;* e x x p p a a n n n d d * 0005 0000 ;* eeee x pppp aaaaa n n n d d * 0006 0000 ;* e x x p a a n nn d d * 0007 0000 ;* e x x p a a n nn d d * 00o8 0000 ;* eeeee x x p a a n n dddd * 0009 0000 ;* * 0010 0000 ;* aaa bbbb aaa sss iiiii ccc * 0011 0000 ;* a a b b a a s s i c c * 0012 0000 ;* a a b b a a s i c * 0013 0000 ;* a a b b a a s i c * 0014 0000 ;* aaaaa bbbb aaaaa s i c * 0015 0000 ;* a a b b a a s i c * 0016 0000 ;* a a b b a a s s i c c * 0017 0000 ;* a a bbbb a a sss iiiii ccc * 0018 0000 ;* * 0019 0000 ;***************************************** 0020 0000 ; 0021 0000 ; 0022 0000 ;***************************************** 0023 0000 ;* * 0024 0000 ;* expanded basic * 0025 0000 ;* * 0026 0000 ;* program to append to the cbm basic * 0027 0000 ;* version 4.0, 8032, chrget routines * 0028 0000 ;* and add commands to cache programs * 0029 0000 ;* in the 64k add-on memory. * 0030 0000 ;* * 0031 0000 ;* 14jul81 rjf (bob) 30jul81 (john) * 0032 0000 ;* * 0033 0000 ;***************************************** exp-basic.src......page 0002 line# loc code line 0035 0000 ; system variable definitions 0036 0000 ; 0037 oo00 status =$96 ;system status variable 0039 0000 ds =$13 ;disk status descriptor 0039 0000 chrget =$70 ;basic routine to get chars 0040 0000 chrgot =$76 ;get last character 0041 0000 getptr =$77 ;p0inter to characters 0042 0000 chdgot =$d39f ;rom copy of chrgot 0043 0000 newstt =$b74a ;new statement exex 0044 0000 lnkprg =$b4b6 ;link basic lines 0045 0000 stxtpt =$b622 ;set start text pointer 0046 0000 op94 =$f4a5 ;open a file on ieee 0047 0000 ready =$b3ff ;re-enter basic 0048 0000 fload =$b60b ;run an overlay 0049 0000 runc =$b5e9 ;clear variables 0050 0000 clrch =$ffcc ;clear open channel 0051 0000 fclose =$f2e2 ;close a file 0032 0000 talk =$f0d2 ;tell device to talk 0053 0000 acptr =$f1co ;get a byte 0054 0000 clsei =$f72f ;close a file 0055 0000 untlk =$f1ae ; untalk 0056 0000 tksa =$f193 ;send secondary addr 0057 0000 wsw =$b3 0058 0000 t1 =$b4 0059 0000 t2 =$b5 0060 0000 t3 =$b6 0061 0000 fnlen =$d1 ;file name length 0062 0000 la =$d2 ;logical file number 0063 0000 sa =$d3 ;secondary address 0064 0000 fa =$d4 ;primary address 0065 0000 fnaddr =$da ;file name address 0066 0000 index1 =$1f ;temp pointer 0067 0000 index2 =$21 ;temp pointer 0068 0000 eal =$c9 ;end address pointer 0069 0000 vartab =$2a ;variable table pointer 0070 0000 memsiz =$34 ;top of mem pointer 0071 0000 ; 0072 0000 ; program variables and constants 0073 0000 ; 0074 0000 loc =$7800 0075 0000 *=loc 0076 7800 4c 2e 79 jmp gooo ;start program 0077 7803 ; 0079 7803 ; 0079 7803 tabhi 0080 7803 79 .byt >zz1 0081 7804 79 .byt >zz3 0082 7805 7a .byt >zz4 0083 7806 7a .byt >zz5 0084 7807 79 .byt >zz8 0095 7808 ; 0086 7809 tablo 0097 7808 91 .byt <zz1 0099 7009 fd .byt <zz3 0089 780a 11 .byt <zz4 exp-basic.src......page 0003 line# loc code line 0090 780b 22 .byt <zz5 0091 7b0c 7c .byt <zz8 0092 7900 ; 0093 7800 ncmd =5 0094 7900 52 4c cmd .byt 'rloeq' 0095 7812 file *=*+22 0096 7828 00 .byt $00 0097 7829 entry =25 0098 7829 entmax =225 ;entry*9 0099 7b29 fitab *=*+256 0100 7929 81 b7 wheret .wor $b782-1 ;g0ne3-3-1 0101 792b master =$bb ;available space (three bytes 0102 792b 4c 51 79 jump jmp start exp-basic.src......page 0004 line# loc code line 0104 792e ; 0105 792e ; init the memory manager (sys to here) 0106 792e ; 0107 792e gooo 0108 792e a2 02 ldx #$02 ;m0ve three bytes 0109 7930 bd 2b 79 wedge lda jump,x 0110 7933 95 79 sta chrgot+3,x 0111 7935 ca dex 0112 7936 10 fb bpl wedge 0113 7939 ; 0114 7938 tabset 0115 7939 a2 00 ldx #0 0116 793a sa txa 0117 793b 9d 29 78 tablp sta fitab,x 0118 793e es inx 0119 793f do fa bne tablp 0120 7941 ; 0121 7941 ; setup the start address 0122 7941 ; 0123 7941 a9 80 lda #$80 0124 7943 85 dc sta master+1 ;high byte 0125 7945 oa asl a 0126 7946 55 88 sta master ;low byte 0127 7940 95 bd sta master+2 ;bank select 0128 794a b5 34 sta memsiz ;set memsiz to loc 0129 794c a9 78 lda #>loc 0130 794e 95 35 sta memsiz+1 0131 7950 60 rts exp-basic.src......page 0005 line# loc code line 0133 7951 ; 0134 7951 ; this is where we come to do the work 0135 7951 ; 0136 7951 start 0137 7951 c9 21 cmp #'! ;look for the escape character 0138 7953 do 21 bne notme 0139 7955 20 c9 7a jsr savreg ;save the registers 0140 7959 ; 0141 7958 ; test here for quote mode etc.......... 0142 7959 ; 0143 7958 20 70 00 jsr chrget ;get the next character 0144 795b 49 pha 0145 795c fo 14 beq notcmd 0146 795e a2 04 ldx #ncmd-1 0147 7960 findc ;find the command 0148 7960 dd 00 79 cmp cmd,x 0149 7963 do oa bne again 0150 7965 ; 0151 7965 ; put command address on stack 0152 7965 ; 0153 7965 68 pla ;fix the stack 0154 7966 ; 0155 7966 bd 03 7b lda tabhi,x ;fdund command...go there 0156 7969 49 pha 0157 796a bd 08 79 lda tabld,x 0159 7960 48 pha 0159 796e 60 strts rts 0160 796f ; 0161 796f again 0162 796f ca dex 0163 7970 10 ee bpl findc 0164 7972 ; 0165 7972 notcmd 0166 7972 20 do 7a jsr resreg 0167 7975 68 pla ;fix the stack 0168 7976 notme 0169 7976 c9 3a cmp #': 0170 7976 00 f4 bcs strts 0171 797a 4C 7d 00 jmp chrgot+7 exp-dasic.src......pace 0006 line* loc code line 0173 797d ; 0174 797d ; quit command 0175 7970 ; 0176 797d ; this command exits the memory manager 0177 7970 ; and restores the chrget routine 0178 797d ; 0179 797d quit 0180 7970 20 70 00 jsr chrget ;clean up the line 0181 7980 00 fb_ bne quit 0182 7982 a2 02 ldx #$02 0183 7984 rest 0184 7984 00 a2 d3 lda chdgot+3,x 0195 7907 95 79 sta chrgot+3,x 0196 79b9 ca dex 0187 799a 10 fo bpl rest 0189 799c 20 do 7a jsr resreg 0189 798f 4c 76 00 jmp chrgot exp-basic.src......page 0007 line# loc code line 0191 7992 ; 0192 7992 ; load file from disk into expansion memory 0193 7992 ; 0194 7992 recal 0195 7992 20 d7 7a jsr getfn ;get the filename 0196 7995 a5 96 lda status 0197 7997 do 53 bne recout ;bad status 0199 7999 20 10 7b jsr gtype ;get the file type 0199 799c a5 96 lda status 0200 799e do 4c bne recout 0201 79a0 a9 52 lda #'r ;set up for file read 0202 79a2 9d 12 78 sta file,x 0204 79a5 ;open the file 0206 79a5 a9 oe lda #14 ;set the logical file number 0207 79a7 95 02 sta la 0208 79a9 09 60 ora #$60 ;set the secundmy address 0209 79a9 85 03 sta sa 0210 79ad 20 a5 f4 jsr op94 ;0pen the file 0211 79b0 20 38 7b jsr enter ;enter filename into table 0212 79b3 80 3f bcs recerr ;bad... 0213 79b5 ; 0214 7985 a5 04 lda fa 0215 79b7 20 02 fo jsr talk 0216 79da a5 03 lda sa 0217 79bc 20 93 fi jsr tksa 0218 79bf rec10 0219 79bf 20 co fL jsr acptr ;get a character 0220 79c2 78 sei ;kill the irq 0221 79c3 20 ae 7b jsr selbnk ;set up exp. ram 0222 79c6 ao 00 ldy #0 0223 79c9 91 bo sta (master),y 0224 79ca a9 00 lda #$00 ;reset the banks 0225 79cc bd fo ff sta $fff0 0226 79cf 58 cli ;restore the irq 0227 7900 20 c6 7b jsr incmas 0229 79d3 a5 96 lda status ;terminate on status <> 0 0229 79d5 00 04 bne rec20 0230 79d7 90 e6 bcc rec10 ;go do more bytes 0231 79d9 30 19 bcs recerr ;out of memory 0232 79db c9 40 rec20 cmp #64 ;eoi is ok 0233 79dd 00 15 bne recerr ;not eoi... 0234 79df 20 ae fL jsr untlk 0235 79e2 20 2f f7 jsr clsei ;close the file 0236 79e5 ao 15 ldy #21 0237 79e7 20 6b 7b jsr entlst ;put in the end address 0238 79ea a9 00 lda #0 0239 79ec recout 0240 79ec 85 96 sta status 0241 79ee 20 do 7a jsr resreg ;restore registers 0242 79f1 4c 70 00 jmp chrget ;back to basic 0243 79f4 ; 0244 79f4 recerr 0245 79f4 20 ae fi jsr untlk ;close the channel exp-basic.src...... page 0008 line* loc code line 0246 79f7 20 2f f7 jsr clsei 0247 79fa a9 20 lda #32 ;send an error back 0248 79fc 00 ee bne recout exp-basic.src......page 0009 line# loc code line 0250 79fe load 0251 79fe ; 0252 79fe ; this routine loads a file into the expansion memory 0253 79fe ; 0254 79fe 20 3a 7a jsr loader ; do the load stuff 0253 7a01 a6 20 ldx index1+1 0256 7a03 56 29 stx vartab+1 0257 7a05 a6 1f ldx index1 0258 7a07 86 2a stx vartab 0259 7a09 20 e9 85 jsr runc ;clear the variables 0260 7a0c 20 b6 84 jsr lnkprg ; link basic lines 0261 7a0f 4c ff b3 jmp ready ;say ready 0262 7a12 ; exp-basic.src......page 0010 line* loc code line 0264 7a12 ovrly 0265 7a12 ; 0266 7a12 ; overlay an existing program (i.e. load from basic) 0267 7a12 ; 0269 7a12 20 3a 7a jsr loader ;load the file 0269 7a15 20 22 b6 jsr stxtpt ;pick up the first line 0270 7a19 ad 2a 79 lda wheret+1 ;put correct address on stack 0271 7a19 49 pha 0272 7a1c ad 29 79 lda wheret 0273 7a1f 48 pha 0274 7a20 4c 00 b6 jmp fload ;g0 run it 0275 7a23 ; exp-basic.src......page 0011 line* loc code line 0277 7a23 exec 0279 7a23 ; 0279 7a23 ; load and run with a clear so variables are gone 0280 7a23 ; 0281 7a23 20 3a 7a jsr loader ;load the file 0292 7a26 a6 20 ldx index1+1 0283 7a29 96 2b stx vartab+1 0284 7a2a a6 1f ldx index1 0285 7a2c b6 2a stx vartab 0286 7a2e 20 e9 b5 jsr runc ;clear variables 0287 7a31 20 b6 84 jsr lnkprg ;link lines 0299 7a34 20 22 06 jsr stxtpt ;set pointer to first line 0289 7a37 4c 4a b7 jmp newstt ;exec it 0290 7a3a ; exp-dasic.src......page 0012 line# loc code line 0292 7a3a ; 0293 7a3a ; routine to load files into low ram from 64k 0294 7a3a ; 0295 7a3a loader 0296 7a3a 20 d7 7a jsr getfn ;read the filename 0297 7a3d a5 96 lda status 0298 7a3f 00 5c bne lderr ;bad filename.... 0299 7a41 20 7d 7b jsr lukup ;lookup the file in directory 0300 7a44 90 57 bcs lderr ;not found... 0301 7a46 ; 0302 7a46 98 tya ;Lndex into the dir for addres 0303 7a47 19 clc 0304 7a48 69 12 adc #18 0305 7a4a as tay 0306 7a4b 89 29 78 lda fitab,y ;start lo 0307 7a4e 95 21 sta index2 0309 7a50 cs iny 0309 7a51 b9 29 78 lda fitab,y ;start hi 0310 7a54 95 22 sta index2+1 0311 7a56 ; 0312 7a56 cs iny 0313 7a57 b9 29 78 lda fitab,y ;get the mapper control byte 0314 7a5a 95 01 sta fnlen 0315 7a5c ; 0316 7a5c cs iny 0317 7a5d b9 29 79 lda fitab,y ;end lo 0318 7a60 95 c9 sta eal 0319 7a62 co iny 0320 7a63 89 29 79 lda fitab,y ;end hi 0321 7a66 95 ca sta eal+1 0322 7a69 ; 0323 7a69 ; loop to load data into lo ram 0324 7a68 ; 0325 7a69 lodlp 0326 7a68 79 sei ;n0 irq allowed 0327 7a69 lodlp0 0328 7a69 ao 00 ldy #$0 0329 7a6b a6 01 ldx fnlen ;set up the banks 0330 7a6d do 04 bne lodlp1 0331 7a6f a2 80 ldx #$80 ;select 0,2 0332 7a71 00 02 bne stlp 0333 7a73 lodlp1 0334 7a73 a2 99 ldx #$88 ;select 1,3 0335 7a75 stlp 0336 7a75 8e fo ff stx $fff0 0337 7a79 ; 0338 7a78 ; 0339 7a79 b1 21 lda (index2),y ;load address lo 0340 7a7a 95 1f sta index1 0341 7a7c 20 9f 7a jsr bumpx 0342 7a7f ; 0343 7a7f 81 21 lda (index2),y ;load address hi 0344 7a81 95 20 sta index1+1 0345 7a83 20 9f 7a jsr bumpx 0346 7a86 ; exp-basic.src......page 0013 line# loc code line 0347 7ab6 lodlp2 0349 7ab6 bi 21 lda (index2),y ;transfer a byte 0349 7a99 91 if sta (index1),y 0350 7a8a ; 0351 7a8a e6 1f inc index1 ;bump the destination pointer 0352 7a8c 00 02 bne lodlp3 0353 7a8e e6 20 inc index1+1 0354 7a90 lodlp3 0355 7a90 20 9f 7a jsr bumpx ;bump source pointer 0356 7a93 90 fi bcc lodlp2 ;done yet? 0357 7a95 ; 0359 7a95 a2 00 ldx #0 ;restore the rom's 0359 7a97 8e fo ff stx $fff0 0360 7a9a 58 cli ;we are done let irq go 0361 7a98 18 clc 0362 7a9c 60 rts 0363 7a9d lderr ;load error 0364 7a9d 38 sec 0365 7a9e 60 rts 0366 7a9f ; 0367 7a9f ;subroutine to handle data pointers to expansion mem 0369 7a9f ; 0369 7a9f bumpx 0370 7a9f e6 21 inc index2 0371 7aai do of bne tstxx 0372 7aa3 e6 22 inc index2+1 0373 7aa5 do ob bne tstxx 0374 7aa7 a2 90 ldx #$80 ;crossed over to other block 0375 7aa9 96 01 stx fnlen 0376 7aab 96 22 stx index2+1 0377 7aad a9 b8 lda #%10111000 0373 7aaf bd fo ff sta $fff0 0379 7ab2 tstxx ;check for end of file 0380 7ab2 a6 c9 ldx eal 0381 7ab4 e4 21 cpx index2 0382 7ab6 do 08 bne donex 0393 7ab9 a6 ca ldx eal+1 0384 7a9a e4 22 cpx index2+1 0385 7abc do 02 bne donex 0396 7abe 38 sec ;done with load 0387 7abf 60 rts 0389 7aco donex 0389 7aco 18 clc 0390 7ac1 60 rts 0391 7ac2 ; exp-dasic.src......page 0014 line# loc code line 0393 7ac2 ; 0394 7ac2 ;increment pointer to text 0395 7ac2 ; 0396 7ac2 incptr 0397 7ac2 e6 77 inc getptr 0399 7ac4 do 02 bne incrts 0399 7ac6 e6 79 inc getptr+1 0400 7acs incrts 0401 7acs 60 rts 0402 7ac9 ; 0403 7ac9 ;save and restore routines for .a, .x, .y 0404 7ac9 ; 0405 7ac9 savreg 0406 7ac9 85 83 sta wsw 0407 7aco 86 84 stx t1 0409 7acd 84 b5 sty t2 0409 7acf 60 rts 0410 7ado ; 0411 7a00 resreg 0412 7ado a5 b3 lda wsw 0413 7ad2 a6 84 ldx t1 0414 7ad4 a4 85 ldy t2 0415 7ad6 60 rts exp-basic.src......page 0015 line# loc code line 0417 7ad7 ; 0419 7ad7 ; get filename from user command 0419 7ad7 ; 0420 7ad7 getfn 0421 7ad7 20 70 00 jsr chrget 0422 7ada fo 57 beg badfi ;not there error 0423 7adc c9 22 cmp #'" ;look for open quote 0424 7ade 00 f7 bne getfn 0423 7aeg ; 0426 7aeo a9 00 lda #0 0427 7ae2 85 96 sta status 0428 7ae4 aa tax 0429 7ae5 ab tay 0430 7ae6 a9 12 lda #<file 0431 7ae9 95 da sta fnaddr 0432 7aea a9 78 lda #>file 0433 7aec 95 db sta fnaddr+1 0434 7aee floop 0435 7aee 20 c2 7a jsr incptr 0436 7af1 bi 77 lda (getptr),y 0437 7af3 c9 22 cmp #'" ;look for end quote 0439 7af5 fo oa beq endfi 0439 7af7 90 12 78 sta file,x 0440 7afa es inx 0441 7afb eo 12 cpx #L8 0442 7afo 90 ef bcc floop ;g0 get more 0443 7aff 80 32 bcs badfi ;too long 0444 7b01 endfi 0445 7b01 96 01 stx fnlen ;save length (index) 0446 7b03 a9 00 lda #0 ;pad filename wih $00 on right 0447 7b05 eo 12 fi1o cpx #18 0449 7b07 bo 06 bcs endfia 0449 7b09 90 12 78 sta file,x 0450 7b0c es inx 0451 7b00 do f6 bne fi1o 0452 7b0f endfia 0453 7b0f 60 rts 0454 7b10 ; 0455 7b10 ; get the file type 0456 7b10 ; 0457 7b10 gtype 0458 7b10 gcomma 0459 7b10 20 70 00 jsr chrget 0460 7b13 fo Le beq badfi ;not enough info..... 0461 7b15 c9 2c cmp #', 0462 7b17 do f7 bne gcomma 0463 7b19 a6 01 ldx fnlen ;get the current filename length 0464 7b1b 9d 12 79 sta file.x 0465 7bie 9d 14 78 sta file+2,x ;put comma here also 0466 7b21 20 70 00 jsr chrget ;get type byte (s,u,p,r) 0467 7b24 fo 00 beq badfi 0468 7b26 es inx 0469 7b27 9d 12 78 sta file,x ;no value check is done!'! 0470 7b2a es inx ;skip to put in the read or wr 0471 7b2b es inx ;but do not put in here exp-dasic.src......page 0016 line# loc code line 0472 7b2c 96 di stx fnlen 0473 7b2e ; 0474 7b2e ; put in the device number check later************* 0475 7b2e ; for now default to 9 unly 0476 7b2e ; 0477 782e a9 09 lda #8 0478 7930 95 04 sta fa 0479 7b32 60 rts 0490 7b33 ; 0481 7b33 badfi 0482 7b33 a9 01 lda #$01 0483 7b35 95 96 sta status 0484 7b37 60 rts 0485 7b38 ; 0486 7b38 ; enter file into table 0487 7b39 ; put in load address and set status in carry 0489 7b38 ; 0489 7b38 enter 0490 7b38 20 7d 7b jsr lukup ;look for file in table 0491 7b3b 90 3e bcc badent ; dup found... 0492 7b3d ; 0493 7b3d ; look for blank entry 0494 783d ; 0495 793d ao eL ldy #entmax 0496 7b3f empty 0497 7b3f b9 29 78 lda fitab,y 0498 7b42 fo 09 beg empfnd 0499 7b44 99 tya 0500 7b45 38 sec 0501 7b46 e9 19 sbc #entry 0502 7b48 as tay 0503 7b49 do f4 bne empty 0504 7b48 fo 2e beq badent 0505 7b4d ; 0506 7b4d empfnd ;f0und an entry 0507 7b4d 99 tya ;point index1 to entry 0509 7b4e 19 clc 0509 784f 69 29 adc #<fitab 0510 7b51 b5 1f sta index1 0511 7b53 a9 79 lda #>fitab 0512 7b55 69 00 adc #0 0513 7b57 85 20 sta index1+1 0514 7b59 ; 0515 7b59 ;place entry into dir 0516 7859 ; 0517 7b59 ao 00 ldy #0 0519 7b5b entmor 0519 7b59 89 12 78 lda file,y 0520 7b5e c9 2c cmp #', ;only put in drive and name 0521 7b60 fo 07 beq entfst 0522 7b62 91 1f sta (index1),y 0523 7b64 c8 iny 0524 7b65 co 12 cpy #18 0525 7b67 90 f2 bcc entmor 0526 7b69 ; exp-basic.src......page 0017 line# loc code line 0527 7b69 entfst 0529 7b69 ao 12 ldy #18 0529 7b6b ; 0530 7b6b entlst ;enter end address 0531 7b6b a5 bb lda master ;save the load address 0532 7b6d 91 lf sta (index1),y 0533 7b6f co iny 0534 7b70 a5 bc lda master+1 0535 7b72 91 1f sta (index1),y 0536 7b74 co iny ;put in the bank control byte 0537 7b75 a5 be lda master+3 053b 7b77 91 1f sta (index1),y 0539 7b79 ib clc 0540 7b7a 60 rts ;come here for bad exit 0541 7b7b badent 0542 7b7b 38 sec 0543 7b7c 60 rts 0544 7b70 ; 0545 7b7d ; lookup file in directory 0546 7b7d ; 0547 7b7d lukup 0549 787d ao eL ldy #entmax 0549 7b7f luk10 0550 7b7f b9 29 78 lda fitab,y 0551 7db2 do 09 bne lukcmp 0552 7b94 luk20 0553 7b94 99 tya ;m0ve to next file 0554 7095 38 sec 0555 7b96 e9 19 sbc #entry 0556 7b89 as tay 0557 7b89 do f4 bne luk10 0558 7bb9 fo if beq notfnd 0559 7b9d ; 0560 7bod lukcmp 0561 7b9d 84 06 sty t3 ;save .y while doing the compare 0562 7b8f a2 00 ldx #0 0563 7b91 luk30 0564 7b91 bd 12 78 lda file,x 0565 7b94 c9 2c cmp #', ;comma means done 0566 7b96 fo ob beq found 0567 7b99 09 29 7b cmp fitab,y 0568 7b9b do oa bne trymor 0569 7b9d cs iny 0570 7b9e e8 inx 0571 7b9f eo 12 cpx #18 0572 7ba1 90 ee bcc luk30 0573 7da3 ; 0574 7ba3 found ;i found it 0575 7ba3 a4 b6 ldy t3 ;.y points to file 0576 7ba5 is clc 0577 7ba6 60 rts 0579 7ba7 trymor ;i am trying to find it 0579 7ba7 a4 b6 ldy t3 0580 7ba9 4c 84 7b jmp luk20 0581 7dac notfnd ;i lost it exp-basic.src......page 0018 line# loc code line 0592 7bac 38 sec 0583 7bad 60 rts 0584 7bae ; 0595 7bae ;this routine turns on the proper bank 05b6 7bae ; 0587 7bae selbnk 058A 78ae a6 bd ldx master+2 0589 7db0 do 06 bne sel10 0590 70b2 a2 80 ldx #$80 ;turn on banks 0 and 2 0591 7bb4 se fo ff stx $fff0 0592 7bd7 60 rts 0593 7899 sel10 0594 7bbb a2 88 ldx #$88 ;turn on banks 1 and 3 0595 7bba se fo ff stx $fff0 0596 7bbd a6 bd ldx master+2 ;one byte has the $40 flag 0597 7bbf 70 04 bvs sel30 0599 7bci a2 90 ldx #$80 0599 7bc3 86 bd stx master+2 0600 7bc5 sel30 0601 7bc5 60 rts 0602 7bc6 ; 0603 7bc6 ; bump up the master pointer and set the $40 flag 0604 7bc6 ; 0605 7bc6 incmas 0606 7bc6 e6 08 inc master ;bump pointers 0607 7bcb do 10 bne masrts 0609 7bca e6 bc inc master+1 0609 78cc do oc bne masrts ;check for overflow of bank 0610 7bce a6 bd ldx master+2 ;we went over 0611 7bd0 do oa bne inc10 ;out of memdry? 0612 7bd2 a2 40 ldx #$40 ;set flag for overflow 0613 7bd4 96 dd stx master+2 0614 7bd6 a2 90 ldx #$80 ;reset pointer hi 0615 7bds 86 bc stx master+1 0616 7dda masrts 0617 7bda 18 clc 0619 7bdb 60 rts ;out of memory 0619 7bdc inc10 0620 7bdc 38 sec 0621 7bdd 60 rts 0622 7bde ; 0623 72de ; 0624 78de ;these must be after the definition 0625 7bde ; 0626 7bde zz1 =recal-1 ;recall from disk 0627 7bde zz3 =load-1 ;load low memory from expansion 0629 7bde zz4 =ovrly-1 ;overlay program in memory 0629 7bde zz5 =exec-1 ;execute without overlay 0630 7bde zz8 =quit-1 ;exit program. 0631 7bde .end errors = 0000 symbol table symbol value acptr f1c0 again 796f badent 7b7b badfi 7b33 bumpx 7a9f chdgot d39f chrget 0070 chrgot 0076 clrch ffcc clsei f72f cmd 7900 donex 7aco ds 0013 eal 00c9 empfnd 7b4d empty 7b3f endfi 7b01 endfia 7b0f enter 7b39 entfst 7b69 entlst 7b6b entmax 00e1 entmor 7b5b entry 0019 exec 7a23 fa 00d4 fclose f2e2 fi10 7b05 file 7812 findc 7960 fitab 7829 fload b6ob floop 7aee fnaddr ooda fnlen 0001 found 7ba3 gcomma 7810 getfn 7ad7 getptr 0077 gooo 792e gtype 7810 inc10 7bdc incmas 78c6 incptr 7ac2 incrts 7ac8 index1 001f index2 0021 jump 792b la 00d2 lderr 7a9d lnkprg b4b6 load 79fe loader 7a3a loc 7800 lodlp 7a6b lodlp0 7a69 lodlp1 7a73 lodlp2 7a86 lodlp3 7a90 luk10 7b7f luk20 7b84 luk30 7b91 lukcmp 7b9d lukup 7b7d masrts 7bda master oobb memsiz 0034 ncmd 0005 newstt b74a notcmd 7972 notfnd 7bac notme 7976 op94 f4a5 ovrly 7a12 quit 7970 ready b3ff rec10 79bf rec20 79db recal 7992 recerr 79f4 recout 79ec resreg 7ado rest 7984 runc b5e9 sa 0003 savreg 7ac9 sel10 79b9 sel30 7bc5 selbnk 7bae start 7951 status 0096 stlp 7a75 strts 796e stxtpt b622 t1 00b4 t2 00b5 t3 00b6 tabhi 7803 tablo 7809 tablp 793b tabset 7938 talk f0d2 tksa fL93 trymor 7ba7 tstxx 7ab2 untlk f1ae vartab 002a wedge 7930 wheret 7929 wsw 00b3 zz1 7991 zz3 79fd zz4 7a11 zz5 7a22 zz8 797c end of assembly expanded-basic 100 rem****************************** 110 rem* expanded basic demo * 120 rem* * 130 rem* boot expanded basic * 140 rem* and then cache demo program* 150 rem****************************** 160 if a then sys 7*16^3+8*256 170 if a then:!r,"sttest",p:!e,"sttest" 180 a=1:dload "expanded-basic" sttest 10 rem demo for memory manager 20 rem first we must get the stuff into memory 30 :!r,"test1",p 40 :!r,"test2",p 50 :!r,"test3",p 60 :!r,"test4",p 70 rem execute the first program in the chain 80 :!e,"test1" test1 10 rem this is a test 15 print"<clr>test1":fori=1to200:next 17 print"print the numbers from 1 to 20" 19 fori=1to200:next 20 fori=1to20 30 print,i 40 next 50 :!e,"test2" test2 10 rem this is a test 15 print"<clr>test2":fori=1to200:next 17 print"print the numbers from 20 to 1" 19 fori=1to200:next 20 fori=20 to 1 step -1 30 print,i 40 next 50 :!e,"test3" test3 10 rem this is a test 15 print"<clr>test3":fori=1to200:next 17 print"print the numbers from 51 to 70" 18 print"along with the square-root 19 fori=1to200:next 20 fori=51to70 30 print,i,sqr(i) 40 next 50 :!e,"test4" test4 10 rem this is a test 15 print"<clr>test4":fori=1to200:next 17 print"you have seen the system load and" 18 print"execute three programs from the 20 print"expansion memory. if you look at 30 print"the files with the word 'test' in them 40 print"you will see how this is done 45 print"<dwn><dwn><dwn>type <rev>space<off> to continue or <rev>q<off> to quit" 50 geta$:ifa$=""then50 60 ifa$="q"then:!q:end 65 ifa$=" "then:!e,"test1" 70 ifa$="2"then:!e,"test2" 80 ifa$="3"then:!e,"test3"