Home » Archimedes archive » Zipped Apps » BBC Tape » !BBCTape/BBCLoadBT
!BBCTape/BBCLoadBT
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 » Zipped Apps » BBC Tape |
Filename: | !BBCTape/BBCLoadBT |
Read OK: | ✔ |
File size: | 1B5E bytes |
Load address: | 0000 |
Exec address: | 0000 |
File contents
MODE 7 *TAPE PAGE = &E00 40REM 50REM BBC end of !BBCTape application 60REM 70REM (C) S. Burke, 26/2/91 80REM 90REM The next few lines define where the buffers are, where the 100REM code goes and where the file loads to. 110REM 120: 130name = &0B00 140name_high = &0B 150name_low = &00 160block = &0B10 170block_high = &0B 180block_low = &10 190code_start = &0B30 200load_page = &0E 210: 220osfind = &FFCE 230osbget = &FFD7 240osfile = &FFDD :REM Page 335 of the Advanced User Guide is wrong! 250osbyte = &FFF4 260: 270FOR opt%=0 TO 3 STEP 3 280P% = code_start 290[OPT opt% 300.go 310LDX #0 320LDA #2 330JSR osbyte \ disable RS423 340LDX #0 350LDA #15 360JSR osbyte \ flush all buffers 370LDX #2 380TXA 390JSR osbyte \ enable RS423 receive 400.mainloop 410LDA #&0D 420STA name \ null name 430JSR handshake 440: 450JSR get \ get command 460CPY #&C0 470BEQ end \ quit 480: 490CPY #&30 500BNE load 510JSR put_ok \ confirm command 520JSR get_name \ get filename 530JSR handshake 540JSR get 550.load 560CPY #&0C 570BNE load_byte 580JSR put_ok \ confirm command 590JSR load_file 600JSR send_file 610JMP mainloop 620.load_byte 630CPY #&03 640BNE command_error 650JSR put_ok \ confirm command 660JSR load_bget 670JSR send_file 680JMP mainloop 690.command_error 700LDA #0 710JSR put \ command error 720JMP mainloop 730.end 740RTS 750.load_file 760LDA #name_low \ set up parameter block 770STA block 780LDA #name_high 790STA block+1 800LDA #0 810STA block+2 820STA block+6 830LDA #load_page 840STA block+3 850LDA #&FF 860STA block+4 870STA block+5 880LDX #block_low 890LDY #block_high 900JSR osfile \ load file 910LDA block+10 920STA &71 930LDA block+11 940STA &72 \ put file length in &71, &72 950JSR read_load_exec 960JMP read_name \ get load/exec address and name 970.load_bget 980LDA #0 990STA &71:STA &72 \ file length in &71, &72 1000STA &73 1010LDA #load_page 1020STA &74 \ load address in &73, &74 1030: 1040LDX #name_low 1050LDY #name_high 1060LDA #&40 1070JSR osfind \ open file 1080CMP #0 1090BEQ end \ open failed? 1100STA &70 \ file handle 1110LDY #0 1120.loop 1130JSR escape \ check for escape 1140TYA:TAX \ no TYX instruction! 1150LDY &70 1160JSR osbget \ get byte 1170PHA:TXA:TAY:PLA \ just TXY! 1180BCS eof \ end of file? 1190STA (&73),Y \ can't use X register 1200INY 1210BNE loop \ done 256 bytes? 1220INC &72:LDA #23:CMP &72:BCS loop:INC &74 1230BPL loop \ should always be taken 1240.eof 1250STY &71:STY &73 \ set low bytes of counters 1260JSR read_load_exec 1270JSR read_name \ get load/exec address and name 1280LDY &70 1290LDA #0 1300JMP osfind \ close file 1310.read_name 1320LDX #&FF 1330.nameloop 1340INX 1350CPX #&C 1360BEQ too_far 1370LDA &3B2,X \ pull filename out of cassette workspace 1380STA name,X \ see AUG p. 279 1390BNE nameloop 1400.too_far 1410LDA #&0D 1420STA name,X 1430RTS 1440.get_name 1450LDX #&FF 1460STX &81 \ "get" corrupts registers 1470.get_char 1480CPX #&B 1490BEQ too_far 1500JSR get \ get filename from Arc 1510TYA 1520INC &81 1530LDX &81 1540STA name,X 1550CMP #&0D 1560BNE get_char 1570RTS 1580.read_load_exec 1590LDX #8 1600.load_exec_loop 1610LDA &3BD,X \ load/exec address from cassette workspace 1620STA &81,X 1630DEX 1640BNE load_exec_loop 1650RTS 1660.handshake 1670LDA #ASC("S") 1680JSR put 1690LDA #ASC("B") 1700JSR put \ send "SB" ... 1710JSR get 1720CPY #ASC("s") 1730BNE handshake 1740JSR get 1750CPY #ASC("b") 1760BNE handshake \ ... and receive "sb" to handshake 1770RTS 1780.send_file 1790LDA &71 1800JSR put 1810LDA &72 1820JSR put \ send file length 1830: 1840LDA #load_page 1850STA &74 1860LDA #0 1870STA &73 \ reset load address 1880DEC &72 \ need this for test below 1890BMI last_block \ file length < 256 bytes? 1900STA &80 \ block length = 0 ( = 256) 1910.send_block 1920JSR put_ok \ not eof 1930LDA #3 \ send length 3 times 1940STA &76 \ use CRC low byte as counter 1950.lenout 1960LDA &80 1970JSR put \ output block length 1980DEC &76 1990BNE lenout \ CRC low byte zero at exit 2000LDY #0 2010STY &75 \ initialise CRC high byte 2020.send_byte 2030STY &70 \ save offset 2040LDA (&73),Y \ load next byte ... 2050PHA 2060JSR put 2070PLA \ get character back 2080JSR crc \ update crc 2090LDY &70 2100INY \ increment offset 2110CPY &80 2120BNE send_byte \ end of block? 2130: 2140LDA &75 2150JSR put \ output CRC high byte 2160LDA &76 2170JSR put \ output CRC low byte 2180: 2190JSR get \ look for confirmation 2200TYA 2210BEQ send_block \ zero means error, so do again 2220: 2230INC &74 \ increment address high byte 2240DEC &72 \ decrement length high byte 2250BPL send_block \ are we finished? 2260.last_block 2270LDY #0 2280LDA &71 \ length of last block 2290STY &71 \ set length to zero 2300STA &80 2310BNE send_block \ output if non-zero 2320LDA #0 2330JSR put \ zero marks eof 2340JSR put_load_exec \ send the load/exec adress 2350.put_name \ fall through to put_name ... 2360LDX #&FF 2370STX &81 \ "put" corrupts registers 2380.put_char \ output file name 2390INC &81 2400LDX &81 2410LDA name,X 2420PHA 2430JSR put 2440PLA 2450CMP #&0D 2460BNE put_char 2470RTS 2480.put_load_exec \ put out load/exec address 2490LDX #0 2500STX &81 \ "put" corrupts registers 2510.put_load_exec_loop 2520LDA &82,X 2530JSR put 2540INC &81 2550LDX &81 2560CPX #8 2570BNE put_load_exec_loop 2580RTS 2590.put_ok 2600LDA #&FF 2610.put 2620PHA \ save value to output 2630JSR escape 2640LDX #&FD 2650LDA #&80 2660JSR osbyte \ get # empty bytes in RS423 output buffer 2670CPX #9 2680PLA 2690BCC put \ if < 9 bytes remain, wait ... 2700: 2710LDX #2 2720TAY 2730LDA #&8A 2740JMP osbyte \ ... and send it 2750.get 2760JSR escape 2770LDX #1 2780LDA #&91 2790JSR osbyte \ read a byte 2800BCS get 2810RTS 2820.crc 2830EOR &75 \ calculate CRC in &75, &76 2840STA &75 \ algorithm from Advanced User Guide 2850LDX #8 \ I hope it's right! 2860.crc_loop 2870LDA &75 2880ROL A 2890BCC b7z 2900LDA &75 2910EOR #8 2920STA &75 2930LDA &76 2940EOR #&10 2950STA &76 2960.b7z 2970ROL &76 2980ROL &75 2990DEX 3000BNE crc_loop 3010RTS 3020.escape 3030LDA &FF 3040BMI error 3050RTS 3060.error 3070LDA #&7E 3080JSR osbyte \ acknowledge escape 3090LDX #0 3100LDA #&0F 3110JSR osbyte \ flush buffers (just in case) 3120LDY #0 3130LDA #0 3140JSR &FFCE \ close all files 3150BRK 3160] 3170?P% = &11 3180P% = P% + 1 3190$P% = "Escape" + CHR$0 3200NEXT opt% *OPT 1,2 RUN CALL go
00000000 4d 4f 44 45 20 37 0d 2a 54 41 50 45 0d 50 41 47 |MODE 7.*TAPE.PAG| 00000010 45 20 3d 20 26 45 30 30 0d 34 30 52 45 4d 0d 35 |E = &E00.40REM.5| 00000020 30 52 45 4d 20 42 42 43 20 65 6e 64 20 6f 66 20 |0REM BBC end of | 00000030 21 42 42 43 54 61 70 65 20 61 70 70 6c 69 63 61 |!BBCTape applica| 00000040 74 69 6f 6e 0d 36 30 52 45 4d 0d 37 30 52 45 4d |tion.60REM.70REM| 00000050 20 28 43 29 20 53 2e 20 42 75 72 6b 65 2c 20 32 | (C) S. Burke, 2| 00000060 36 2f 32 2f 39 31 0d 38 30 52 45 4d 0d 39 30 52 |6/2/91.80REM.90R| 00000070 45 4d 20 54 68 65 20 6e 65 78 74 20 66 65 77 20 |EM The next few | 00000080 6c 69 6e 65 73 20 64 65 66 69 6e 65 20 77 68 65 |lines define whe| 00000090 72 65 20 74 68 65 20 62 75 66 66 65 72 73 20 61 |re the buffers a| 000000a0 72 65 2c 20 77 68 65 72 65 20 74 68 65 0d 31 30 |re, where the.10| 000000b0 30 52 45 4d 20 63 6f 64 65 20 67 6f 65 73 20 61 |0REM code goes a| 000000c0 6e 64 20 77 68 65 72 65 20 74 68 65 20 66 69 6c |nd where the fil| 000000d0 65 20 6c 6f 61 64 73 20 74 6f 2e 0d 31 31 30 52 |e loads to..110R| 000000e0 45 4d 0d 31 32 30 3a 0d 31 33 30 6e 61 6d 65 20 |EM.120:.130name | 000000f0 20 20 20 20 20 20 3d 20 26 30 42 30 30 0d 31 34 | = &0B00.14| 00000100 30 6e 61 6d 65 5f 68 69 67 68 20 20 3d 20 26 30 |0name_high = &0| 00000110 42 0d 31 35 30 6e 61 6d 65 5f 6c 6f 77 20 20 20 |B.150name_low | 00000120 3d 20 26 30 30 0d 31 36 30 62 6c 6f 63 6b 20 20 |= &00.160block | 00000130 20 20 20 20 3d 20 26 30 42 31 30 0d 31 37 30 62 | = &0B10.170b| 00000140 6c 6f 63 6b 5f 68 69 67 68 20 3d 20 26 30 42 0d |lock_high = &0B.| 00000150 31 38 30 62 6c 6f 63 6b 5f 6c 6f 77 20 20 3d 20 |180block_low = | 00000160 26 31 30 0d 31 39 30 63 6f 64 65 5f 73 74 61 72 |&10.190code_star| 00000170 74 20 3d 20 26 30 42 33 30 0d 32 30 30 6c 6f 61 |t = &0B30.200loa| 00000180 64 5f 70 61 67 65 20 20 3d 20 26 30 45 0d 32 31 |d_page = &0E.21| 00000190 30 3a 0d 32 32 30 6f 73 66 69 6e 64 20 3d 20 26 |0:.220osfind = &| 000001a0 46 46 43 45 0d 32 33 30 6f 73 62 67 65 74 20 3d |FFCE.230osbget =| 000001b0 20 26 46 46 44 37 0d 32 34 30 6f 73 66 69 6c 65 | &FFD7.240osfile| 000001c0 20 3d 20 26 46 46 44 44 20 20 3a 52 45 4d 20 50 | = &FFDD :REM P| 000001d0 61 67 65 20 33 33 35 20 6f 66 20 74 68 65 20 41 |age 335 of the A| 000001e0 64 76 61 6e 63 65 64 20 55 73 65 72 20 47 75 69 |dvanced User Gui| 000001f0 64 65 20 69 73 20 77 72 6f 6e 67 21 0d 32 35 30 |de is wrong!.250| 00000200 6f 73 62 79 74 65 20 3d 20 26 46 46 46 34 0d 32 |osbyte = &FFF4.2| 00000210 36 30 3a 0d 32 37 30 46 4f 52 20 6f 70 74 25 3d |60:.270FOR opt%=| 00000220 30 20 54 4f 20 33 20 53 54 45 50 20 33 0d 32 38 |0 TO 3 STEP 3.28| 00000230 30 50 25 20 3d 20 63 6f 64 65 5f 73 74 61 72 74 |0P% = code_start| 00000240 0d 32 39 30 5b 4f 50 54 20 6f 70 74 25 0d 33 30 |.290[OPT opt%.30| 00000250 30 2e 67 6f 0d 33 31 30 4c 44 58 20 23 30 0d 33 |0.go.310LDX #0.3| 00000260 32 30 4c 44 41 20 23 32 0d 33 33 30 4a 53 52 20 |20LDA #2.330JSR | 00000270 6f 73 62 79 74 65 20 20 20 20 20 20 20 20 5c 20 |osbyte \ | 00000280 64 69 73 61 62 6c 65 20 52 53 34 32 33 0d 33 34 |disable RS423.34| 00000290 30 4c 44 58 20 23 30 0d 33 35 30 4c 44 41 20 23 |0LDX #0.350LDA #| 000002a0 31 35 0d 33 36 30 4a 53 52 20 6f 73 62 79 74 65 |15.360JSR osbyte| 000002b0 20 20 20 20 20 20 20 20 5c 20 66 6c 75 73 68 20 | \ flush | 000002c0 61 6c 6c 20 62 75 66 66 65 72 73 0d 33 37 30 4c |all buffers.370L| 000002d0 44 58 20 23 32 0d 33 38 30 54 58 41 0d 33 39 30 |DX #2.380TXA.390| 000002e0 4a 53 52 20 6f 73 62 79 74 65 20 20 20 20 20 20 |JSR osbyte | 000002f0 20 20 5c 20 65 6e 61 62 6c 65 20 52 53 34 32 33 | \ enable RS423| 00000300 20 72 65 63 65 69 76 65 0d 34 30 30 2e 6d 61 69 | receive.400.mai| 00000310 6e 6c 6f 6f 70 0d 34 31 30 4c 44 41 20 23 26 30 |nloop.410LDA #&0| 00000320 44 0d 34 32 30 53 54 41 20 6e 61 6d 65 20 20 20 |D.420STA name | 00000330 20 20 20 20 20 20 20 5c 20 6e 75 6c 6c 20 6e 61 | \ null na| 00000340 6d 65 0d 34 33 30 4a 53 52 20 68 61 6e 64 73 68 |me.430JSR handsh| 00000350 61 6b 65 0d 34 34 30 3a 0d 34 35 30 4a 53 52 20 |ake.440:.450JSR | 00000360 67 65 74 20 20 20 20 20 20 20 20 20 20 20 5c 20 |get \ | 00000370 67 65 74 20 63 6f 6d 6d 61 6e 64 0d 34 36 30 43 |get command.460C| 00000380 50 59 20 23 26 43 30 0d 34 37 30 42 45 51 20 65 |PY #&C0.470BEQ e| 00000390 6e 64 20 20 20 20 20 20 20 20 20 20 20 5c 20 71 |nd \ q| 000003a0 75 69 74 0d 34 38 30 3a 0d 34 39 30 43 50 59 20 |uit.480:.490CPY | 000003b0 23 26 33 30 0d 35 30 30 42 4e 45 20 6c 6f 61 64 |#&30.500BNE load| 000003c0 0d 35 31 30 4a 53 52 20 70 75 74 5f 6f 6b 20 20 |.510JSR put_ok | 000003d0 20 20 20 20 20 20 5c 20 63 6f 6e 66 69 72 6d 20 | \ confirm | 000003e0 63 6f 6d 6d 61 6e 64 0d 35 32 30 4a 53 52 20 67 |command.520JSR g| 000003f0 65 74 5f 6e 61 6d 65 20 20 20 20 20 20 5c 20 67 |et_name \ g| 00000400 65 74 20 66 69 6c 65 6e 61 6d 65 0d 35 33 30 4a |et filename.530J| 00000410 53 52 20 68 61 6e 64 73 68 61 6b 65 0d 35 34 30 |SR handshake.540| 00000420 4a 53 52 20 67 65 74 0d 35 35 30 2e 6c 6f 61 64 |JSR get.550.load| 00000430 0d 35 36 30 43 50 59 20 23 26 30 43 0d 35 37 30 |.560CPY #&0C.570| 00000440 42 4e 45 20 6c 6f 61 64 5f 62 79 74 65 0d 35 38 |BNE load_byte.58| 00000450 30 4a 53 52 20 70 75 74 5f 6f 6b 20 20 20 20 20 |0JSR put_ok | 00000460 20 20 20 5c 20 63 6f 6e 66 69 72 6d 20 63 6f 6d | \ confirm com| 00000470 6d 61 6e 64 0d 35 39 30 4a 53 52 20 6c 6f 61 64 |mand.590JSR load| 00000480 5f 66 69 6c 65 0d 36 30 30 4a 53 52 20 73 65 6e |_file.600JSR sen| 00000490 64 5f 66 69 6c 65 0d 36 31 30 4a 4d 50 20 6d 61 |d_file.610JMP ma| 000004a0 69 6e 6c 6f 6f 70 0d 36 32 30 2e 6c 6f 61 64 5f |inloop.620.load_| 000004b0 62 79 74 65 0d 36 33 30 43 50 59 20 23 26 30 33 |byte.630CPY #&03| 000004c0 0d 36 34 30 42 4e 45 20 63 6f 6d 6d 61 6e 64 5f |.640BNE command_| 000004d0 65 72 72 6f 72 0d 36 35 30 4a 53 52 20 70 75 74 |error.650JSR put| 000004e0 5f 6f 6b 20 20 20 20 20 20 20 20 5c 20 63 6f 6e |_ok \ con| 000004f0 66 69 72 6d 20 63 6f 6d 6d 61 6e 64 0d 36 36 30 |firm command.660| 00000500 4a 53 52 20 6c 6f 61 64 5f 62 67 65 74 0d 36 37 |JSR load_bget.67| 00000510 30 4a 53 52 20 73 65 6e 64 5f 66 69 6c 65 0d 36 |0JSR send_file.6| 00000520 38 30 4a 4d 50 20 6d 61 69 6e 6c 6f 6f 70 0d 36 |80JMP mainloop.6| 00000530 39 30 2e 63 6f 6d 6d 61 6e 64 5f 65 72 72 6f 72 |90.command_error| 00000540 0d 37 30 30 4c 44 41 20 23 30 0d 37 31 30 4a 53 |.700LDA #0.710JS| 00000550 52 20 70 75 74 20 20 20 20 20 20 20 20 20 20 20 |R put | 00000560 5c 20 63 6f 6d 6d 61 6e 64 20 65 72 72 6f 72 0d |\ command error.| 00000570 37 32 30 4a 4d 50 20 6d 61 69 6e 6c 6f 6f 70 0d |720JMP mainloop.| 00000580 37 33 30 2e 65 6e 64 0d 37 34 30 52 54 53 0d 37 |730.end.740RTS.7| 00000590 35 30 2e 6c 6f 61 64 5f 66 69 6c 65 0d 37 36 30 |50.load_file.760| 000005a0 4c 44 41 20 23 6e 61 6d 65 5f 6c 6f 77 20 20 20 |LDA #name_low | 000005b0 20 20 5c 20 73 65 74 20 75 70 20 70 61 72 61 6d | \ set up param| 000005c0 65 74 65 72 20 62 6c 6f 63 6b 0d 37 37 30 53 54 |eter block.770ST| 000005d0 41 20 62 6c 6f 63 6b 0d 37 38 30 4c 44 41 20 23 |A block.780LDA #| 000005e0 6e 61 6d 65 5f 68 69 67 68 0d 37 39 30 53 54 41 |name_high.790STA| 000005f0 20 62 6c 6f 63 6b 2b 31 0d 38 30 30 4c 44 41 20 | block+1.800LDA | 00000600 23 30 0d 38 31 30 53 54 41 20 62 6c 6f 63 6b 2b |#0.810STA block+| 00000610 32 0d 38 32 30 53 54 41 20 62 6c 6f 63 6b 2b 36 |2.820STA block+6| 00000620 0d 38 33 30 4c 44 41 20 23 6c 6f 61 64 5f 70 61 |.830LDA #load_pa| 00000630 67 65 0d 38 34 30 53 54 41 20 62 6c 6f 63 6b 2b |ge.840STA block+| 00000640 33 0d 38 35 30 4c 44 41 20 23 26 46 46 0d 38 36 |3.850LDA #&FF.86| 00000650 30 53 54 41 20 62 6c 6f 63 6b 2b 34 0d 38 37 30 |0STA block+4.870| 00000660 53 54 41 20 62 6c 6f 63 6b 2b 35 0d 38 38 30 4c |STA block+5.880L| 00000670 44 58 20 23 62 6c 6f 63 6b 5f 6c 6f 77 0d 38 39 |DX #block_low.89| 00000680 30 4c 44 59 20 23 62 6c 6f 63 6b 5f 68 69 67 68 |0LDY #block_high| 00000690 0d 39 30 30 4a 53 52 20 6f 73 66 69 6c 65 20 20 |.900JSR osfile | 000006a0 20 20 20 20 20 20 5c 20 6c 6f 61 64 20 66 69 6c | \ load fil| 000006b0 65 0d 39 31 30 4c 44 41 20 62 6c 6f 63 6b 2b 31 |e.910LDA block+1| 000006c0 30 0d 39 32 30 53 54 41 20 26 37 31 0d 39 33 30 |0.920STA &71.930| 000006d0 4c 44 41 20 62 6c 6f 63 6b 2b 31 31 0d 39 34 30 |LDA block+11.940| 000006e0 53 54 41 20 26 37 32 20 20 20 20 20 20 20 20 20 |STA &72 | 000006f0 20 20 5c 20 70 75 74 20 66 69 6c 65 20 6c 65 6e | \ put file len| 00000700 67 74 68 20 69 6e 20 26 37 31 2c 20 26 37 32 0d |gth in &71, &72.| 00000710 39 35 30 4a 53 52 20 72 65 61 64 5f 6c 6f 61 64 |950JSR read_load| 00000720 5f 65 78 65 63 0d 39 36 30 4a 4d 50 20 72 65 61 |_exec.960JMP rea| 00000730 64 5f 6e 61 6d 65 20 20 20 20 20 5c 20 67 65 74 |d_name \ get| 00000740 20 6c 6f 61 64 2f 65 78 65 63 20 61 64 64 72 65 | load/exec addre| 00000750 73 73 20 61 6e 64 20 6e 61 6d 65 0d 39 37 30 2e |ss and name.970.| 00000760 6c 6f 61 64 5f 62 67 65 74 0d 39 38 30 4c 44 41 |load_bget.980LDA| 00000770 20 23 30 0d 39 39 30 53 54 41 20 26 37 31 3a 53 | #0.990STA &71:S| 00000780 54 41 20 26 37 32 20 20 20 5c 20 66 69 6c 65 20 |TA &72 \ file | 00000790 6c 65 6e 67 74 68 20 69 6e 20 26 37 31 2c 20 26 |length in &71, &| 000007a0 37 32 0d 31 30 30 30 53 54 41 20 26 37 33 0d 31 |72.1000STA &73.1| 000007b0 30 31 30 4c 44 41 20 23 6c 6f 61 64 5f 70 61 67 |010LDA #load_pag| 000007c0 65 0d 31 30 32 30 53 54 41 20 26 37 34 20 20 20 |e.1020STA &74 | 000007d0 20 20 20 20 20 20 20 20 5c 20 6c 6f 61 64 20 61 | \ load a| 000007e0 64 64 72 65 73 73 20 69 6e 20 26 37 33 2c 20 26 |ddress in &73, &| 000007f0 37 34 0d 31 30 33 30 3a 0d 31 30 34 30 4c 44 58 |74.1030:.1040LDX| 00000800 20 23 6e 61 6d 65 5f 6c 6f 77 0d 31 30 35 30 4c | #name_low.1050L| 00000810 44 59 20 23 6e 61 6d 65 5f 68 69 67 68 0d 31 30 |DY #name_high.10| 00000820 36 30 4c 44 41 20 23 26 34 30 0d 31 30 37 30 4a |60LDA #&40.1070J| 00000830 53 52 20 6f 73 66 69 6e 64 20 20 20 20 20 20 20 |SR osfind | 00000840 20 5c 20 6f 70 65 6e 20 66 69 6c 65 0d 31 30 38 | \ open file.108| 00000850 30 43 4d 50 20 23 30 0d 31 30 39 30 42 45 51 20 |0CMP #0.1090BEQ | 00000860 65 6e 64 20 20 20 20 20 20 20 20 20 20 20 5c 20 |end \ | 00000870 6f 70 65 6e 20 66 61 69 6c 65 64 3f 0d 31 31 30 |open failed?.110| 00000880 30 53 54 41 20 26 37 30 20 20 20 20 20 20 20 20 |0STA &70 | 00000890 20 20 20 5c 20 66 69 6c 65 20 68 61 6e 64 6c 65 | \ file handle| 000008a0 0d 31 31 31 30 4c 44 59 20 23 30 0d 31 31 32 30 |.1110LDY #0.1120| 000008b0 2e 6c 6f 6f 70 0d 31 31 33 30 4a 53 52 20 65 73 |.loop.1130JSR es| 000008c0 63 61 70 65 20 20 20 20 20 20 20 20 5c 20 63 68 |cape \ ch| 000008d0 65 63 6b 20 66 6f 72 20 65 73 63 61 70 65 0d 31 |eck for escape.1| 000008e0 31 34 30 54 59 41 3a 54 41 58 20 20 20 20 20 20 |140TYA:TAX | 000008f0 20 20 20 20 20 5c 20 6e 6f 20 54 59 58 20 69 6e | \ no TYX in| 00000900 73 74 72 75 63 74 69 6f 6e 21 0d 31 31 35 30 4c |struction!.1150L| 00000910 44 59 20 26 37 30 0d 31 31 36 30 4a 53 52 20 6f |DY &70.1160JSR o| 00000920 73 62 67 65 74 20 20 20 20 20 20 20 20 5c 20 67 |sbget \ g| 00000930 65 74 20 62 79 74 65 0d 31 31 37 30 50 48 41 3a |et byte.1170PHA:| 00000940 54 58 41 3a 54 41 59 3a 50 4c 41 20 20 20 5c 20 |TXA:TAY:PLA \ | 00000950 6a 75 73 74 20 54 58 59 21 0d 31 31 38 30 42 43 |just TXY!.1180BC| 00000960 53 20 65 6f 66 20 20 20 20 20 20 20 20 20 20 20 |S eof | 00000970 5c 20 65 6e 64 20 6f 66 20 66 69 6c 65 3f 0d 31 |\ end of file?.1| 00000980 31 39 30 53 54 41 20 28 26 37 33 29 2c 59 20 20 |190STA (&73),Y | 00000990 20 20 20 20 20 5c 20 63 61 6e 27 74 20 75 73 65 | \ can't use| 000009a0 20 58 20 72 65 67 69 73 74 65 72 0d 31 32 30 30 | X register.1200| 000009b0 49 4e 59 0d 31 32 31 30 42 4e 45 20 6c 6f 6f 70 |INY.1210BNE loop| 000009c0 20 20 20 20 20 20 20 20 20 20 5c 20 64 6f 6e 65 | \ done| 000009d0 20 32 35 36 20 62 79 74 65 73 3f 0d 31 32 32 30 | 256 bytes?.1220| 000009e0 49 4e 43 20 26 37 32 3a 4c 44 41 20 23 32 33 3a |INC &72:LDA #23:| 000009f0 43 4d 50 20 26 37 32 3a 42 43 53 20 6c 6f 6f 70 |CMP &72:BCS loop| 00000a00 3a 49 4e 43 20 26 37 34 0d 31 32 33 30 42 50 4c |:INC &74.1230BPL| 00000a10 20 6c 6f 6f 70 20 20 20 20 20 20 20 20 20 20 5c | loop \| 00000a20 20 73 68 6f 75 6c 64 20 61 6c 77 61 79 73 20 62 | should always b| 00000a30 65 20 74 61 6b 65 6e 0d 31 32 34 30 2e 65 6f 66 |e taken.1240.eof| 00000a40 0d 31 32 35 30 53 54 59 20 26 37 31 3a 53 54 59 |.1250STY &71:STY| 00000a50 20 26 37 33 20 20 20 5c 20 73 65 74 20 6c 6f 77 | &73 \ set low| 00000a60 20 62 79 74 65 73 20 6f 66 20 63 6f 75 6e 74 65 | bytes of counte| 00000a70 72 73 0d 31 32 36 30 4a 53 52 20 72 65 61 64 5f |rs.1260JSR read_| 00000a80 6c 6f 61 64 5f 65 78 65 63 0d 31 32 37 30 4a 53 |load_exec.1270JS| 00000a90 52 20 72 65 61 64 5f 6e 61 6d 65 20 20 20 20 20 |R read_name | 00000aa0 5c 20 67 65 74 20 6c 6f 61 64 2f 65 78 65 63 20 |\ get load/exec | 00000ab0 61 64 64 72 65 73 73 20 61 6e 64 20 6e 61 6d 65 |address and name| 00000ac0 0d 31 32 38 30 4c 44 59 20 26 37 30 0d 31 32 39 |.1280LDY &70.129| 00000ad0 30 4c 44 41 20 23 30 0d 31 33 30 30 4a 4d 50 20 |0LDA #0.1300JMP | 00000ae0 6f 73 66 69 6e 64 20 20 20 20 20 20 20 20 5c 20 |osfind \ | 00000af0 63 6c 6f 73 65 20 66 69 6c 65 0d 31 33 31 30 2e |close file.1310.| 00000b00 72 65 61 64 5f 6e 61 6d 65 0d 31 33 32 30 4c 44 |read_name.1320LD| 00000b10 58 20 23 26 46 46 0d 31 33 33 30 2e 6e 61 6d 65 |X #&FF.1330.name| 00000b20 6c 6f 6f 70 0d 31 33 34 30 49 4e 58 0d 31 33 35 |loop.1340INX.135| 00000b30 30 43 50 58 20 23 26 43 0d 31 33 36 30 42 45 51 |0CPX #&C.1360BEQ| 00000b40 20 74 6f 6f 5f 66 61 72 0d 31 33 37 30 4c 44 41 | too_far.1370LDA| 00000b50 20 26 33 42 32 2c 58 20 20 20 20 20 20 20 20 5c | &3B2,X \| 00000b60 20 70 75 6c 6c 20 66 69 6c 65 6e 61 6d 65 20 6f | pull filename o| 00000b70 75 74 20 6f 66 20 63 61 73 73 65 74 74 65 20 77 |ut of cassette w| 00000b80 6f 72 6b 73 70 61 63 65 0d 31 33 38 30 53 54 41 |orkspace.1380STA| 00000b90 20 6e 61 6d 65 2c 58 20 20 20 20 20 20 20 20 5c | name,X \| 00000ba0 20 73 65 65 20 41 55 47 20 70 2e 20 32 37 39 0d | see AUG p. 279.| 00000bb0 31 33 39 30 42 4e 45 20 6e 61 6d 65 6c 6f 6f 70 |1390BNE nameloop| 00000bc0 0d 31 34 30 30 2e 74 6f 6f 5f 66 61 72 0d 31 34 |.1400.too_far.14| 00000bd0 31 30 4c 44 41 20 23 26 30 44 0d 31 34 32 30 53 |10LDA #&0D.1420S| 00000be0 54 41 20 6e 61 6d 65 2c 58 0d 31 34 33 30 52 54 |TA name,X.1430RT| 00000bf0 53 0d 31 34 34 30 2e 67 65 74 5f 6e 61 6d 65 0d |S.1440.get_name.| 00000c00 31 34 35 30 4c 44 58 20 23 26 46 46 0d 31 34 36 |1450LDX #&FF.146| 00000c10 30 53 54 58 20 26 38 31 20 20 20 20 20 20 20 20 |0STX &81 | 00000c20 20 20 20 5c 20 22 67 65 74 22 20 63 6f 72 72 75 | \ "get" corru| 00000c30 70 74 73 20 72 65 67 69 73 74 65 72 73 0d 31 34 |pts registers.14| 00000c40 37 30 2e 67 65 74 5f 63 68 61 72 0d 31 34 38 30 |70.get_char.1480| 00000c50 43 50 58 20 23 26 42 0d 31 34 39 30 42 45 51 20 |CPX #&B.1490BEQ | 00000c60 74 6f 6f 5f 66 61 72 0d 31 35 30 30 4a 53 52 20 |too_far.1500JSR | 00000c70 67 65 74 20 20 20 20 20 20 20 20 20 20 20 5c 20 |get \ | 00000c80 67 65 74 20 66 69 6c 65 6e 61 6d 65 20 66 72 6f |get filename fro| 00000c90 6d 20 41 72 63 0d 31 35 31 30 54 59 41 0d 31 35 |m Arc.1510TYA.15| 00000ca0 32 30 49 4e 43 20 26 38 31 20 20 20 0d 31 35 33 |20INC &81 .153| 00000cb0 30 4c 44 58 20 26 38 31 0d 31 35 34 30 53 54 41 |0LDX &81.1540STA| 00000cc0 20 6e 61 6d 65 2c 58 0d 31 35 35 30 43 4d 50 20 | name,X.1550CMP | 00000cd0 23 26 30 44 0d 31 35 36 30 42 4e 45 20 67 65 74 |#&0D.1560BNE get| 00000ce0 5f 63 68 61 72 0d 31 35 37 30 52 54 53 0d 31 35 |_char.1570RTS.15| 00000cf0 38 30 2e 72 65 61 64 5f 6c 6f 61 64 5f 65 78 65 |80.read_load_exe| 00000d00 63 0d 31 35 39 30 4c 44 58 20 23 38 0d 31 36 30 |c.1590LDX #8.160| 00000d10 30 2e 6c 6f 61 64 5f 65 78 65 63 5f 6c 6f 6f 70 |0.load_exec_loop| 00000d20 0d 31 36 31 30 4c 44 41 20 26 33 42 44 2c 58 20 |.1610LDA &3BD,X | 00000d30 20 20 20 20 20 20 20 5c 20 6c 6f 61 64 2f 65 78 | \ load/ex| 00000d40 65 63 20 61 64 64 72 65 73 73 20 66 72 6f 6d 20 |ec address from | 00000d50 63 61 73 73 65 74 74 65 20 77 6f 72 6b 73 70 61 |cassette workspa| 00000d60 63 65 0d 31 36 32 30 53 54 41 20 26 38 31 2c 58 |ce.1620STA &81,X| 00000d70 0d 31 36 33 30 44 45 58 0d 31 36 34 30 42 4e 45 |.1630DEX.1640BNE| 00000d80 20 6c 6f 61 64 5f 65 78 65 63 5f 6c 6f 6f 70 0d | load_exec_loop.| 00000d90 31 36 35 30 52 54 53 0d 31 36 36 30 2e 68 61 6e |1650RTS.1660.han| 00000da0 64 73 68 61 6b 65 0d 31 36 37 30 4c 44 41 20 23 |dshake.1670LDA #| 00000db0 41 53 43 28 22 53 22 29 0d 31 36 38 30 4a 53 52 |ASC("S").1680JSR| 00000dc0 20 70 75 74 0d 31 36 39 30 4c 44 41 20 23 41 53 | put.1690LDA #AS| 00000dd0 43 28 22 42 22 29 0d 31 37 30 30 4a 53 52 20 70 |C("B").1700JSR p| 00000de0 75 74 20 20 20 20 20 20 20 20 20 20 20 5c 20 73 |ut \ s| 00000df0 65 6e 64 20 22 53 42 22 20 2e 2e 2e 0d 31 37 31 |end "SB" ....171| 00000e00 30 4a 53 52 20 67 65 74 0d 31 37 32 30 43 50 59 |0JSR get.1720CPY| 00000e10 20 23 41 53 43 28 22 73 22 29 0d 31 37 33 30 42 | #ASC("s").1730B| 00000e20 4e 45 20 68 61 6e 64 73 68 61 6b 65 0d 31 37 34 |NE handshake.174| 00000e30 30 4a 53 52 20 67 65 74 0d 31 37 35 30 43 50 59 |0JSR get.1750CPY| 00000e40 20 23 41 53 43 28 22 62 22 29 0d 31 37 36 30 42 | #ASC("b").1760B| 00000e50 4e 45 20 68 61 6e 64 73 68 61 6b 65 20 20 20 20 |NE handshake | 00000e60 20 5c 20 2e 2e 2e 20 61 6e 64 20 72 65 63 65 69 | \ ... and recei| 00000e70 76 65 20 22 73 62 22 20 74 6f 20 68 61 6e 64 73 |ve "sb" to hands| 00000e80 68 61 6b 65 0d 31 37 37 30 52 54 53 0d 31 37 38 |hake.1770RTS.178| 00000e90 30 2e 73 65 6e 64 5f 66 69 6c 65 0d 31 37 39 30 |0.send_file.1790| 00000ea0 4c 44 41 20 26 37 31 0d 31 38 30 30 4a 53 52 20 |LDA &71.1800JSR | 00000eb0 70 75 74 0d 31 38 31 30 4c 44 41 20 26 37 32 0d |put.1810LDA &72.| 00000ec0 31 38 32 30 4a 53 52 20 70 75 74 20 20 20 20 20 |1820JSR put | 00000ed0 20 20 20 20 20 20 5c 20 73 65 6e 64 20 66 69 6c | \ send fil| 00000ee0 65 20 6c 65 6e 67 74 68 0d 31 38 33 30 3a 0d 31 |e length.1830:.1| 00000ef0 38 34 30 4c 44 41 20 23 6c 6f 61 64 5f 70 61 67 |840LDA #load_pag| 00000f00 65 0d 31 38 35 30 53 54 41 20 26 37 34 0d 31 38 |e.1850STA &74.18| 00000f10 36 30 4c 44 41 20 23 30 20 0d 31 38 37 30 53 54 |60LDA #0 .1870ST| 00000f20 41 20 26 37 33 20 20 20 20 20 20 20 20 20 20 20 |A &73 | 00000f30 5c 20 72 65 73 65 74 20 6c 6f 61 64 20 61 64 64 |\ reset load add| 00000f40 72 65 73 73 0d 31 38 38 30 44 45 43 20 26 37 32 |ress.1880DEC &72| 00000f50 20 20 20 20 20 20 20 20 20 20 20 5c 20 6e 65 65 | \ nee| 00000f60 64 20 74 68 69 73 20 66 6f 72 20 74 65 73 74 20 |d this for test | 00000f70 62 65 6c 6f 77 0d 31 38 39 30 42 4d 49 20 6c 61 |below.1890BMI la| 00000f80 73 74 5f 62 6c 6f 63 6b 20 20 20 20 5c 20 66 69 |st_block \ fi| 00000f90 6c 65 20 6c 65 6e 67 74 68 20 3c 20 32 35 36 20 |le length < 256 | 00000fa0 62 79 74 65 73 3f 0d 31 39 30 30 53 54 41 20 26 |bytes?.1900STA &| 00000fb0 38 30 20 20 20 20 20 20 20 20 20 20 20 5c 20 62 |80 \ b| 00000fc0 6c 6f 63 6b 20 6c 65 6e 67 74 68 20 3d 20 30 20 |lock length = 0 | 00000fd0 28 20 3d 20 32 35 36 29 0d 31 39 31 30 2e 73 65 |( = 256).1910.se| 00000fe0 6e 64 5f 62 6c 6f 63 6b 0d 31 39 32 30 4a 53 52 |nd_block.1920JSR| 00000ff0 20 70 75 74 5f 6f 6b 20 20 20 20 20 20 20 20 5c | put_ok \| 00001000 20 6e 6f 74 20 65 6f 66 0d 31 39 33 30 4c 44 41 | not eof.1930LDA| 00001010 20 23 33 20 20 20 20 20 20 20 20 20 20 20 20 5c | #3 \| 00001020 20 73 65 6e 64 20 6c 65 6e 67 74 68 20 33 20 74 | send length 3 t| 00001030 69 6d 65 73 0d 31 39 34 30 53 54 41 20 26 37 36 |imes.1940STA &76| 00001040 20 20 20 20 20 20 20 20 20 20 20 5c 20 75 73 65 | \ use| 00001050 20 43 52 43 20 6c 6f 77 20 62 79 74 65 20 61 73 | CRC low byte as| 00001060 20 63 6f 75 6e 74 65 72 0d 31 39 35 30 2e 6c 65 | counter.1950.le| 00001070 6e 6f 75 74 0d 31 39 36 30 4c 44 41 20 26 38 30 |nout.1960LDA &80| 00001080 0d 31 39 37 30 4a 53 52 20 70 75 74 20 20 20 20 |.1970JSR put | 00001090 20 20 20 20 20 20 20 5c 20 6f 75 74 70 75 74 20 | \ output | 000010a0 62 6c 6f 63 6b 20 6c 65 6e 67 74 68 0d 31 39 38 |block length.198| 000010b0 30 44 45 43 20 26 37 36 0d 31 39 39 30 42 4e 45 |0DEC &76.1990BNE| 000010c0 20 6c 65 6e 6f 75 74 20 20 20 20 20 20 20 20 5c | lenout \| 000010d0 20 43 52 43 20 6c 6f 77 20 62 79 74 65 20 7a 65 | CRC low byte ze| 000010e0 72 6f 20 61 74 20 65 78 69 74 0d 32 30 30 30 4c |ro at exit.2000L| 000010f0 44 59 20 23 30 0d 32 30 31 30 53 54 59 20 26 37 |DY #0.2010STY &7| 00001100 35 20 20 20 20 20 20 20 20 20 20 20 5c 20 69 6e |5 \ in| 00001110 69 74 69 61 6c 69 73 65 20 43 52 43 20 68 69 67 |itialise CRC hig| 00001120 68 20 62 79 74 65 0d 32 30 32 30 2e 73 65 6e 64 |h byte.2020.send| 00001130 5f 62 79 74 65 0d 32 30 33 30 53 54 59 20 26 37 |_byte.2030STY &7| 00001140 30 20 20 20 20 20 20 20 20 20 20 20 5c 20 73 61 |0 \ sa| 00001150 76 65 20 6f 66 66 73 65 74 0d 32 30 34 30 4c 44 |ve offset.2040LD| 00001160 41 20 28 26 37 33 29 2c 59 20 20 20 20 20 20 20 |A (&73),Y | 00001170 5c 20 6c 6f 61 64 20 6e 65 78 74 20 62 79 74 65 |\ load next byte| 00001180 20 2e 2e 2e 0d 32 30 35 30 50 48 41 0d 32 30 36 | ....2050PHA.206| 00001190 30 4a 53 52 20 70 75 74 0d 32 30 37 30 50 4c 41 |0JSR put.2070PLA| 000011a0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 5c | \| 000011b0 20 67 65 74 20 63 68 61 72 61 63 74 65 72 20 62 | get character b| 000011c0 61 63 6b 0d 32 30 38 30 4a 53 52 20 63 72 63 20 |ack.2080JSR crc | 000011d0 20 20 20 20 20 20 20 20 20 20 5c 20 75 70 64 61 | \ upda| 000011e0 74 65 20 63 72 63 0d 32 30 39 30 4c 44 59 20 26 |te crc.2090LDY &| 000011f0 37 30 0d 32 31 30 30 49 4e 59 20 20 20 20 20 20 |70.2100INY | 00001200 20 20 20 20 20 20 20 20 20 5c 20 69 6e 63 72 65 | \ incre| 00001210 6d 65 6e 74 20 6f 66 66 73 65 74 0d 32 31 31 30 |ment offset.2110| 00001220 43 50 59 20 26 38 30 0d 32 31 32 30 42 4e 45 20 |CPY &80.2120BNE | 00001230 73 65 6e 64 5f 62 79 74 65 20 20 20 20 20 5c 20 |send_byte \ | 00001240 65 6e 64 20 6f 66 20 62 6c 6f 63 6b 3f 0d 32 31 |end of block?.21| 00001250 33 30 3a 0d 32 31 34 30 4c 44 41 20 26 37 35 0d |30:.2140LDA &75.| 00001260 32 31 35 30 4a 53 52 20 70 75 74 20 20 20 20 20 |2150JSR put | 00001270 20 20 20 20 20 20 5c 20 6f 75 74 70 75 74 20 43 | \ output C| 00001280 52 43 20 68 69 67 68 20 62 79 74 65 0d 32 31 36 |RC high byte.216| 00001290 30 4c 44 41 20 26 37 36 0d 32 31 37 30 4a 53 52 |0LDA &76.2170JSR| 000012a0 20 70 75 74 20 20 20 20 20 20 20 20 20 20 20 5c | put \| 000012b0 20 6f 75 74 70 75 74 20 43 52 43 20 6c 6f 77 20 | output CRC low | 000012c0 62 79 74 65 0d 32 31 38 30 3a 0d 32 31 39 30 4a |byte.2180:.2190J| 000012d0 53 52 20 67 65 74 20 20 20 20 20 20 20 20 20 20 |SR get | 000012e0 20 5c 20 6c 6f 6f 6b 20 66 6f 72 20 63 6f 6e 66 | \ look for conf| 000012f0 69 72 6d 61 74 69 6f 6e 0d 32 32 30 30 54 59 41 |irmation.2200TYA| 00001300 0d 32 32 31 30 42 45 51 20 73 65 6e 64 5f 62 6c |.2210BEQ send_bl| 00001310 6f 63 6b 20 20 20 20 5c 20 7a 65 72 6f 20 6d 65 |ock \ zero me| 00001320 61 6e 73 20 65 72 72 6f 72 2c 20 73 6f 20 64 6f |ans error, so do| 00001330 20 61 67 61 69 6e 0d 32 32 32 30 3a 0d 32 32 33 | again.2220:.223| 00001340 30 49 4e 43 20 26 37 34 20 20 20 20 20 20 20 20 |0INC &74 | 00001350 20 20 20 5c 20 69 6e 63 72 65 6d 65 6e 74 20 61 | \ increment a| 00001360 64 64 72 65 73 73 20 68 69 67 68 20 62 79 74 65 |ddress high byte| 00001370 0d 32 32 34 30 44 45 43 20 26 37 32 20 20 20 20 |.2240DEC &72 | 00001380 20 20 20 20 20 20 20 5c 20 64 65 63 72 65 6d 65 | \ decreme| 00001390 6e 74 20 6c 65 6e 67 74 68 20 68 69 67 68 20 62 |nt length high b| 000013a0 79 74 65 0d 32 32 35 30 42 50 4c 20 73 65 6e 64 |yte.2250BPL send| 000013b0 5f 62 6c 6f 63 6b 20 20 20 20 5c 20 61 72 65 20 |_block \ are | 000013c0 77 65 20 66 69 6e 69 73 68 65 64 3f 0d 32 32 36 |we finished?.226| 000013d0 30 2e 6c 61 73 74 5f 62 6c 6f 63 6b 0d 32 32 37 |0.last_block.227| 000013e0 30 4c 44 59 20 23 30 0d 32 32 38 30 4c 44 41 20 |0LDY #0.2280LDA | 000013f0 26 37 31 20 20 20 20 20 20 20 20 20 20 20 5c 20 |&71 \ | 00001400 6c 65 6e 67 74 68 20 6f 66 20 6c 61 73 74 20 62 |length of last b| 00001410 6c 6f 63 6b 0d 32 32 39 30 53 54 59 20 26 37 31 |lock.2290STY &71| 00001420 20 20 20 20 20 20 20 20 20 20 20 5c 20 73 65 74 | \ set| 00001430 20 6c 65 6e 67 74 68 20 74 6f 20 7a 65 72 6f 0d | length to zero.| 00001440 32 33 30 30 53 54 41 20 26 38 30 0d 32 33 31 30 |2300STA &80.2310| 00001450 42 4e 45 20 73 65 6e 64 5f 62 6c 6f 63 6b 20 20 |BNE send_block | 00001460 20 20 5c 20 6f 75 74 70 75 74 20 69 66 20 6e 6f | \ output if no| 00001470 6e 2d 7a 65 72 6f 0d 32 33 32 30 4c 44 41 20 23 |n-zero.2320LDA #| 00001480 30 0d 32 33 33 30 4a 53 52 20 70 75 74 20 20 20 |0.2330JSR put | 00001490 20 20 20 20 20 20 20 20 5c 20 7a 65 72 6f 20 6d | \ zero m| 000014a0 61 72 6b 73 20 65 6f 66 0d 32 33 34 30 4a 53 52 |arks eof.2340JSR| 000014b0 20 70 75 74 5f 6c 6f 61 64 5f 65 78 65 63 20 5c | put_load_exec \| 000014c0 20 73 65 6e 64 20 74 68 65 20 6c 6f 61 64 2f 65 | send the load/e| 000014d0 78 65 63 20 61 64 72 65 73 73 0d 32 33 35 30 2e |xec adress.2350.| 000014e0 70 75 74 5f 6e 61 6d 65 20 20 20 20 20 20 20 20 |put_name | 000014f0 20 20 20 20 20 20 20 20 20 20 20 5c 20 66 61 6c | \ fal| 00001500 6c 20 74 68 72 6f 75 67 68 20 74 6f 20 70 75 74 |l through to put| 00001510 5f 6e 61 6d 65 20 2e 2e 2e 0d 32 33 36 30 4c 44 |_name ....2360LD| 00001520 58 20 23 26 46 46 0d 32 33 37 30 53 54 58 20 26 |X #&FF.2370STX &| 00001530 38 31 20 20 20 20 20 20 20 20 20 20 20 5c 20 22 |81 \ "| 00001540 70 75 74 22 20 63 6f 72 72 75 70 74 73 20 72 65 |put" corrupts re| 00001550 67 69 73 74 65 72 73 0d 32 33 38 30 2e 70 75 74 |gisters.2380.put| 00001560 5f 63 68 61 72 20 20 20 20 20 20 20 20 20 20 20 |_char | 00001570 20 20 20 20 20 20 20 20 5c 20 6f 75 74 70 75 74 | \ output| 00001580 20 66 69 6c 65 20 6e 61 6d 65 0d 32 33 39 30 49 | file name.2390I| 00001590 4e 43 20 26 38 31 0d 32 34 30 30 4c 44 58 20 26 |NC &81.2400LDX &| 000015a0 38 31 0d 32 34 31 30 4c 44 41 20 6e 61 6d 65 2c |81.2410LDA name,| 000015b0 58 0d 32 34 32 30 50 48 41 0d 32 34 33 30 4a 53 |X.2420PHA.2430JS| 000015c0 52 20 70 75 74 0d 32 34 34 30 50 4c 41 0d 32 34 |R put.2440PLA.24| 000015d0 35 30 43 4d 50 20 23 26 30 44 0d 32 34 36 30 42 |50CMP #&0D.2460B| 000015e0 4e 45 20 70 75 74 5f 63 68 61 72 0d 32 34 37 30 |NE put_char.2470| 000015f0 52 54 53 0d 32 34 38 30 2e 70 75 74 5f 6c 6f 61 |RTS.2480.put_loa| 00001600 64 5f 65 78 65 63 20 20 20 20 20 20 20 20 20 20 |d_exec | 00001610 20 20 20 20 5c 20 70 75 74 20 6f 75 74 20 6c 6f | \ put out lo| 00001620 61 64 2f 65 78 65 63 20 61 64 64 72 65 73 73 0d |ad/exec address.| 00001630 32 34 39 30 4c 44 58 20 23 30 0d 32 35 30 30 53 |2490LDX #0.2500S| 00001640 54 58 20 26 38 31 20 20 20 20 20 20 20 20 20 20 |TX &81 | 00001650 20 5c 20 22 70 75 74 22 20 63 6f 72 72 75 70 74 | \ "put" corrupt| 00001660 73 20 72 65 67 69 73 74 65 72 73 0d 32 35 31 30 |s registers.2510| 00001670 2e 70 75 74 5f 6c 6f 61 64 5f 65 78 65 63 5f 6c |.put_load_exec_l| 00001680 6f 6f 70 0d 32 35 32 30 4c 44 41 20 26 38 32 2c |oop.2520LDA &82,| 00001690 58 0d 32 35 33 30 4a 53 52 20 70 75 74 0d 32 35 |X.2530JSR put.25| 000016a0 34 30 49 4e 43 20 26 38 31 0d 32 35 35 30 4c 44 |40INC &81.2550LD| 000016b0 58 20 26 38 31 0d 32 35 36 30 43 50 58 20 23 38 |X &81.2560CPX #8| 000016c0 0d 32 35 37 30 42 4e 45 20 70 75 74 5f 6c 6f 61 |.2570BNE put_loa| 000016d0 64 5f 65 78 65 63 5f 6c 6f 6f 70 0d 32 35 38 30 |d_exec_loop.2580| 000016e0 52 54 53 0d 32 35 39 30 2e 70 75 74 5f 6f 6b 0d |RTS.2590.put_ok.| 000016f0 32 36 30 30 4c 44 41 20 23 26 46 46 0d 32 36 31 |2600LDA #&FF.261| 00001700 30 2e 70 75 74 0d 32 36 32 30 50 48 41 20 20 20 |0.put.2620PHA | 00001710 20 20 20 20 20 20 20 20 20 20 20 20 5c 20 73 61 | \ sa| 00001720 76 65 20 76 61 6c 75 65 20 74 6f 20 6f 75 74 70 |ve value to outp| 00001730 75 74 0d 32 36 33 30 4a 53 52 20 65 73 63 61 70 |ut.2630JSR escap| 00001740 65 0d 32 36 34 30 4c 44 58 20 23 26 46 44 0d 32 |e.2640LDX #&FD.2| 00001750 36 35 30 4c 44 41 20 23 26 38 30 0d 32 36 36 30 |650LDA #&80.2660| 00001760 4a 53 52 20 6f 73 62 79 74 65 20 20 20 20 20 20 |JSR osbyte | 00001770 20 20 5c 20 67 65 74 20 23 20 65 6d 70 74 79 20 | \ get # empty | 00001780 62 79 74 65 73 20 69 6e 20 52 53 34 32 33 20 6f |bytes in RS423 o| 00001790 75 74 70 75 74 20 62 75 66 66 65 72 0d 32 36 37 |utput buffer.267| 000017a0 30 43 50 58 20 23 39 0d 32 36 38 30 50 4c 41 0d |0CPX #9.2680PLA.| 000017b0 32 36 39 30 42 43 43 20 70 75 74 20 20 20 20 20 |2690BCC put | 000017c0 20 20 20 20 20 20 5c 20 69 66 20 3c 20 39 20 62 | \ if < 9 b| 000017d0 79 74 65 73 20 72 65 6d 61 69 6e 2c 20 77 61 69 |ytes remain, wai| 000017e0 74 20 2e 2e 2e 0d 32 37 30 30 3a 0d 32 37 31 30 |t ....2700:.2710| 000017f0 4c 44 58 20 23 32 0d 32 37 32 30 54 41 59 0d 32 |LDX #2.2720TAY.2| 00001800 37 33 30 4c 44 41 20 23 26 38 41 0d 32 37 34 30 |730LDA #&8A.2740| 00001810 4a 4d 50 20 6f 73 62 79 74 65 20 20 20 20 20 20 |JMP osbyte | 00001820 20 20 5c 20 2e 2e 2e 20 61 6e 64 20 73 65 6e 64 | \ ... and send| 00001830 20 69 74 0d 32 37 35 30 2e 67 65 74 0d 32 37 36 | it.2750.get.276| 00001840 30 4a 53 52 20 65 73 63 61 70 65 0d 32 37 37 30 |0JSR escape.2770| 00001850 4c 44 58 20 23 31 0d 32 37 38 30 4c 44 41 20 23 |LDX #1.2780LDA #| 00001860 26 39 31 0d 32 37 39 30 4a 53 52 20 6f 73 62 79 |&91.2790JSR osby| 00001870 74 65 20 20 20 20 20 20 20 20 5c 20 72 65 61 64 |te \ read| 00001880 20 61 20 62 79 74 65 0d 32 38 30 30 42 43 53 20 | a byte.2800BCS | 00001890 67 65 74 0d 32 38 31 30 52 54 53 0d 32 38 32 30 |get.2810RTS.2820| 000018a0 2e 63 72 63 0d 32 38 33 30 45 4f 52 20 26 37 35 |.crc.2830EOR &75| 000018b0 20 20 20 20 20 20 20 20 20 20 20 5c 20 63 61 6c | \ cal| 000018c0 63 75 6c 61 74 65 20 43 52 43 20 69 6e 20 26 37 |culate CRC in &7| 000018d0 35 2c 20 26 37 36 0d 32 38 34 30 53 54 41 20 26 |5, &76.2840STA &| 000018e0 37 35 20 20 20 20 20 20 20 20 20 20 20 5c 20 61 |75 \ a| 000018f0 6c 67 6f 72 69 74 68 6d 20 66 72 6f 6d 20 41 64 |lgorithm from Ad| 00001900 76 61 6e 63 65 64 20 55 73 65 72 20 47 75 69 64 |vanced User Guid| 00001910 65 0d 32 38 35 30 4c 44 58 20 23 38 20 20 20 20 |e.2850LDX #8 | 00001920 20 20 20 20 20 20 20 20 5c 20 49 20 68 6f 70 65 | \ I hope| 00001930 20 69 74 27 73 20 72 69 67 68 74 21 0d 32 38 36 | it's right!.286| 00001940 30 2e 63 72 63 5f 6c 6f 6f 70 0d 32 38 37 30 4c |0.crc_loop.2870L| 00001950 44 41 20 26 37 35 0d 32 38 38 30 52 4f 4c 20 41 |DA &75.2880ROL A| 00001960 0d 32 38 39 30 42 43 43 20 62 37 7a 0d 32 39 30 |.2890BCC b7z.290| 00001970 30 4c 44 41 20 26 37 35 0d 32 39 31 30 45 4f 52 |0LDA &75.2910EOR| 00001980 20 23 38 0d 32 39 32 30 53 54 41 20 26 37 35 0d | #8.2920STA &75.| 00001990 32 39 33 30 4c 44 41 20 26 37 36 0d 32 39 34 30 |2930LDA &76.2940| 000019a0 45 4f 52 20 23 26 31 30 0d 32 39 35 30 53 54 41 |EOR #&10.2950STA| 000019b0 20 26 37 36 0d 32 39 36 30 2e 62 37 7a 0d 32 39 | &76.2960.b7z.29| 000019c0 37 30 52 4f 4c 20 26 37 36 0d 32 39 38 30 52 4f |70ROL &76.2980RO| 000019d0 4c 20 26 37 35 0d 32 39 39 30 44 45 58 0d 33 30 |L &75.2990DEX.30| 000019e0 30 30 42 4e 45 20 63 72 63 5f 6c 6f 6f 70 0d 33 |00BNE crc_loop.3| 000019f0 30 31 30 52 54 53 0d 33 30 32 30 2e 65 73 63 61 |010RTS.3020.esca| 00001a00 70 65 0d 33 30 33 30 4c 44 41 20 26 46 46 0d 33 |pe.3030LDA &FF.3| 00001a10 30 34 30 42 4d 49 20 65 72 72 6f 72 0d 33 30 35 |040BMI error.305| 00001a20 30 52 54 53 0d 33 30 36 30 2e 65 72 72 6f 72 0d |0RTS.3060.error.| 00001a30 33 30 37 30 4c 44 41 20 23 26 37 45 0d 33 30 38 |3070LDA #&7E.308| 00001a40 30 4a 53 52 20 6f 73 62 79 74 65 20 20 20 20 20 |0JSR osbyte | 00001a50 20 20 20 5c 20 61 63 6b 6e 6f 77 6c 65 64 67 65 | \ acknowledge| 00001a60 20 65 73 63 61 70 65 0d 33 30 39 30 4c 44 58 20 | escape.3090LDX | 00001a70 23 30 0d 33 31 30 30 4c 44 41 20 23 26 30 46 0d |#0.3100LDA #&0F.| 00001a80 33 31 31 30 4a 53 52 20 6f 73 62 79 74 65 20 20 |3110JSR osbyte | 00001a90 20 20 20 20 20 20 5c 20 66 6c 75 73 68 20 62 75 | \ flush bu| 00001aa0 66 66 65 72 73 20 28 6a 75 73 74 20 69 6e 20 63 |ffers (just in c| 00001ab0 61 73 65 29 0d 33 31 32 30 4c 44 59 20 23 30 0d |ase).3120LDY #0.| 00001ac0 33 31 33 30 4c 44 41 20 23 30 0d 33 31 34 30 4a |3130LDA #0.3140J| 00001ad0 53 52 20 26 46 46 43 45 20 20 20 20 20 20 20 20 |SR &FFCE | 00001ae0 20 5c 20 63 6c 6f 73 65 20 61 6c 6c 20 66 69 6c | \ close all fil| 00001af0 65 73 0d 33 31 35 30 42 52 4b 0d 33 31 36 30 5d |es.3150BRK.3160]| 00001b00 0d 33 31 37 30 3f 50 25 20 3d 20 26 31 31 0d 33 |.3170?P% = &11.3| 00001b10 31 38 30 50 25 20 20 3d 20 50 25 20 2b 20 31 0d |180P% = P% + 1.| 00001b20 33 31 39 30 24 50 25 20 3d 20 22 45 73 63 61 70 |3190$P% = "Escap| 00001b30 65 22 20 2b 20 43 48 52 24 30 0d 33 32 30 30 4e |e" + CHR$0.3200N| 00001b40 45 58 54 20 6f 70 74 25 0d 2a 4f 50 54 20 31 2c |EXT opt%.*OPT 1,| 00001b50 32 0d 52 55 4e 0d 43 41 4c 4c 20 67 6f 0d |2.RUN.CALL go.| 00001b5e