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Text File | 1985-06-21 | 19.9 KB | 1,029 lines

1000 rem save "@0:newprot.src.1200",8 1010 : 1020 open2,8,2,"@0:newprot1200,p,w" 1030 : 1040 sys700 1050 ; 1060 .opt o2 1070 ; 1080 differ = $0000 1090 startloc = $c000 1100 c64 = 1 1110 pnta = $62 1120 pntb = $64 1130 stat = $96 1140 defto = $009a ;default output device (kernal) 1150 ptr1 = $009e ;tape pass1 error log (kernal) 1160 bufpntr = $a6 ;pointer to tape i/o buffer (kernal) [2] 1170 tape1 = $b2 ;pointer to start of tape buffer (kernal) [2] 1180 robuf = $00f9 ;pointer to rs232 output buffer (kernal) 1190 lastch = $0200 ;last used character 1200 ridbe = $029b 1210 ridbs = $029c 1220 rodbs = $029d ;start position of rs232 output buffer (kernal) 1230 rodbe = $029e ;end position of rs232 output buffer (kernal) 1240 rs232enb = $02a1 ;rs232 enable=128, disable=255 1250 ibsout = $0326 ;chrout routine vector (kernal) [2] 1260 codebuf = $c800-differ ;buffer for incoming 3 chr codes 1270 bitpnt = $c803-differ ;bit pointer for allowable matches 1280 bitcnt = $c804-differ ;bit counter (0 to 4) 1290 bitpat = $c805-differ ;bit pattern for searches 1300 timer1 = $c806-differ ;timer for non-received characters (2) 1310 gbsave = $c808-differ ;location to save good bad signal needed 1320 bufcount = $c809-differ ;number of chrs to buffer into block 1330 delay = $c80b-differ ;delay for wait period 1340 skpdelay = $c80c-differ ;delay skip counter 1350 endflag = $c80d-differ ;flag to indicate last block 1360 check = $c80e-differ ;save place for checksum (4) 1370 check1 = $c812-differ ;secondary checksum holding place (4) 1380 bufpnt = $c816-differ ;pointer to current buffer 1390 recsize = $c817-differ ;size of received buffer 1400 maxsize = $c818-differ ;maximum block size 1410 blocknum = $c819-differ ;block number (2) 1420 filetype = $c81b-differ ;file type (from basic) 1430 stack = $c81c-differ ;stack pointer at entry 1440 dontdash = $c81d-differ ;flag to suppress dashes and colons 1450 specmode = $c81e-differ ;flag to send special start code 1460 buffer = $c900-differ ;buffer for block 1470 ; 1480 ;buffer positions 1490 ; 1500 sizepos = 4 1510 numpos = 5 1520 datapos = 7 1530 ; 1540 xmit = $cb00 1550 oldout = $cb02 1560 basic4 = $ef06 ;basic call from chrout 1570 basic3 = $ef3b ;basic call from chrout 1580 setup = $ef7e ;set up rs232 to receive again 1590 ; 1600 ;kernal locations 1610 ; 1620 basic1 = $f80d ;basic call from chrout 1630 basic2 = $f864 ;basic call from chrout 1640 readst = $ffb7 1650 chkin = $ffc6 ;open channel for input 1660 chkout = $ffc9 ;open channel for output 1670 clrchn = $ffcc ;close input and output channels 1680 chrin = $ffcf ;input character from channel 1690 chrout = $ffd2 ;output character to channel 1700 getin = $ffe4 ;get a character from keyboard queue 1710 zfffe = $fffe 1720 ; 1730 *=startloc 1740 ; 1750 lda #00 ;sys 49152 1760 .byt $2c 1770 lda #03 ;sys 49155 1780 .byt $2c 1790 lda #06 ;sys 49158 1800 .byt $2c 1810 lda #09 ;sys 49161 1820 .byt $2c 1830 lda #12 ;sys 49164 1840 .byt $2c 1850 lda #15 ;sys 49167 1860 nop 1870 jmp over 1880 jmp reset 1890 jmp init 1900 ; 1910 over sta pnta 1920 tsx 1930 stx stack 1940 lda #<table 1950 clc 1960 adc pnta 1970 sta jmppoint+1 1980 lda #>table 1990 adc #$00 2000 sta jmppoint+2 2010 jmppoint jmp table 2020 ; 2030 table jmp accept 2040 jmp receive 2050 jmp transmit 2060 jmp rectype 2070 jmp trantype 2080 jmp terminal 2090 jmp init 2100 ; 2110 codes .asc "goo" 2120 .asc "bad" 2130 .asc "ack" 2140 .asc "s/b" 2150 .asc "syn" 2160 ; 2170 ;accept characters and check for codes 2180 ; 2190 accept sta bitpat ;save required bit pattern 2200 lda #$00 2210 sta codebuf 2220 sta codebuf+1 2230 sta codebuf+2 2240 cd1 lda #$00 2250 sta timer1 ;clear timer 2260 sta timer1+1 2270 cd2 jsr exit 2280 jsr getnum ;get#5,a$ 2290 lda stat 2300 bne cd3 ;if no chr, do timer check 2310 lda codebuf+1 2320 sta codebuf 2330 lda codebuf+2 2340 sta codebuf+1 2350 lda lastch 2360 sta codebuf+2 2370 lda #$00 2380 sta bitcnt ;clear bit counter 2390 lda #$01 2400 sta bitpnt ;initialize bit pointer 2410 cd4 lda bitpat ;look at bit pattern 2420 bit bitpnt ;is bit set 2430 beq cd5 ;no, don't check this code word 2440 ldy bitcnt 2450 ldx #$00 2460 cd6 lda codebuf,x 2470 cmp codes,y 2480 bne cd5 2490 iny 2500 inx 2510 cpx #$03 2520 bne cd6 2530 jmp cd7 2540 ; 2550 cd5 asl bitpnt ;shift bit pointer 2560 lda bitcnt 2570 clc 2580 adc #$03 2590 sta bitcnt 2600 cmp #15 2610 bne cd4 2620 jmp cd1 2630 ; 2640 cd7 lda #255 2650 sta timer1 2660 sta timer1+1 2670 jmp cd2 2680 ; 2690 cd3 inc timer1 2700 bne cd9 2710 inc timer1+1 2720 cd9 lda timer1+1 2730 ora timer1 2740 beq cd8 2750 lda timer1 2760 cmp #$07 2770 .if c64:lda timer1+1 2780 .if c64:cmp #20 2790 bcc cd2 2800 lda #$01 2810 sta stat 2820 jmp dodelay 2830 ; 2840 cd8 lda #$00 2850 sta stat 2860 rts 2870 ; 2880 ; 2890 .if c64:.goto 3210 2900 ; 2910 ;do a get# for pet 2920 ; 2930 getnum ldx #5 2940 jsr chkin 2950 jsr chrin 2960 sta lastch 2970 jsr clrchn 2980 rts 2990 ; 3000 ;do a get# for pet terminal mode 3010 ; 3020 getnum1 lda $e823 3030 bpl gt1 3040 ldx #5 3050 jsr chkin 3060 jsr chrin 3070 sta lastch 3080 jsr clrchn 3090 lda $e822 3100 lda #0 3110 sta stat 3120 rts 3130 ; 3140 gt1 lda #0 3150 sta lastch 3160 lda #2 3170 sta stat 3180 rts 3190 ; 3200 .goto 3540 3210 ; 3220 ;get# for c64 3230 ; 3240 getnum1 nop 3250 getnum tya 3260 pha 3270 lda ridbe 3280 cmp ridbs 3290 beq get1 3300 ldy ridbs 3310 lda ($f7),y 3320 pha 3330 inc ridbs 3340 lda #$00 3350 sta stat 3360 pla 3370 sta lastch 3380 pla 3390 tay 3400 jmp dorts 3410 ; 3420 get1 lda #$02 3430 sta stat 3440 lda #$00 3450 sta lastch 3460 pla 3470 tay 3480 ; 3490 dorts pha 3500 lda #$03 3510 sta $ba 3520 pla 3530 rts 3540 ; 3550 ;send a code 3560 ; 3570 sendcode ldx #$05 3580 jsr chkout 3590 ldx #$00 3600 sn1 lda codes,y 3610 jsr chrout 3620 iny 3630 inx 3640 cpx #$03 3650 bne sn1 3660 jmp clrchn 3670 ; 3680 ;do handshaking for reception end 3690 ; 3700 rechand sta gbsave ;save good or bad signal as needed 3710 lda #$00 3720 sta delay ;no delay 3730 rc1 lda #$02 3740 sta pnta 3750 ldy gbsave 3760 jsr sendcode ;send g/b signal 3770 rc9 lda #%00100 ;allow "ack" signals 3780 jsr accept ;wait for code 3790 lda stat 3800 beq rc2 ;if ok, send g/b signal again 3810 dec pnta 3820 bne rc9 3830 jmp rc1 3840 ; 3850 rc2 ldy #$09 3860 jsr sendcode ;send "s/b" code 3870 lda endflag 3880 beq rc5 3890 lda gbsave 3900 beq rc6 3910 rc5 lda buffer+sizepos 3920 sta bufcount 3930 sta recsize 3940 jsr recmodem ;wait for block 3950 lda stat 3960 cmp #%0001 ;check for good block 3970 beq rc4 3980 cmp #%0010 ;check for blank input 3990 beq rc2 4000 cmp #%0100 ;check for loss of signal 4010 beq rc4 4020 cmp #%1000 ;check for "ack" signal 4030 beq rc2 4040 rc4 rts 4050 ; 4060 rc6 lda #%10000 ;wait for "syn" signal 4070 jsr accept 4080 lda stat 4090 bne rc2 ;if not, send "s/b" again 4100 lda #10 4110 sta bufcount 4120 rc8 ldy #12 ;send "syn" signal 4130 jsr sendcode 4140 lda #%01000 ;wait for "s/b" signal 4150 jsr accept 4160 lda stat 4170 beq rc7 4180 dec bufcount 4190 bne rc8 4200 rc7 rts 4210 ; 4220 ;do handshaking for transmission end 4230 ; 4240 tranhand lda #$01 4250 sta delay ;use delay 4260 tx2 lda specmode 4270 beq tx20 4280 ldy #$00 4290 jsr sendcode ;send a "goo" signal 4300 tx20 lda #%01011 ;allow "goo", "bad", and "s/b" 4310 jsr accept ;wait for codes 4320 lda stat 4330 bne tx2 ;if no signal, wait again 4340 lda #$00 4350 sta specmode 4360 lda bitcnt 4370 cmp #$00 ;"good" signal 4380 bne tx10 ;no, resend old block 4390 lda endflag 4400 bne tx4 4410 inc blocknum 4420 bne tx7 4430 inc blocknum+1 4440 tx7 jsr thisbuf 4450 ldy #numpos ;block number high order part 4460 iny 4470 lda (pntb),y 4480 cmp #255 4490 bne tx3 4500 lda #$01 4510 sta endflag 4520 lda bufpnt 4530 eor #$01 4540 sta bufpnt 4550 jsr thisbuf 4560 jsr dummybl1 4570 jmp tx1 4580 ; 4590 tx3 jsr dummyblk ;yes, get new block 4600 tx1 lda #"-" 4610 .byt $2c 4620 tx10 lda #":" 4630 jsr prtdash 4640 ldy #$06 4650 jsr sendcode ;send "ack" code 4660 lda #%01000 ;allow only "s/b" code 4670 jsr accept ;wait for code 4680 lda stat 4690 bne tx1 4700 jsr thisbuf 4710 ldy #sizepos ;block size 4720 lda (pntb),y 4730 sta bufcount 4740 jsr altbuf 4750 ldx #$05 4760 jsr chkout 4770 ldy #$00 4780 tx6 lda (pntb),y ;transmit alternate buffer 4790 jsr chrout 4800 iny 4810 cpy bufcount 4820 bne tx6 4830 jsr clrchn 4840 lda #$00 4850 rts 4860 ; 4870 tx4 lda #"*" 4880 jsr prtdash 4890 ldy #$06 4900 jsr sendcode ;send "ack" signal 4910 lda #%01000 4920 jsr accept ;wait for "s/b" signal 4930 lda stat 4940 bne tx4 ;if not, resend "ack" signal 4950 lda #10 4960 sta bufcount 4970 tx5 ldy #12 4980 jsr sendcode ;send "syn" signal 4990 lda #%10000 5000 jsr accept ;wait for "syn" signal back 5010 lda stat 5020 beq tx8 5030 dec bufcount 5040 bne tx5 5050 tx8 lda #$03 5060 sta bufcount 5070 tx9 ldy #$09 5080 jsr sendcode ;send "s/b" signal 5090 lda #$00000 5100 jsr accept ;just wait 5110 dec bufcount 5120 bne tx9 5130 lda #$01 5140 rts 5150 ; 5160 ;receive a block from the modem 5170 ; 5180 ; stat returns with: 5190 ; 5200 ; bit 0 - buffered all characters successfully 5210 ; bit 1 - no characters received at all 5220 ; bit 2 - insufficient characters received 5230 ; bit 3 - "ack" signal received 5240 ; 5250 recmodem ldy #$00 ;start index 5260 rcm5 lda #$00 ;clear timers 5270 sta timer1 5280 sta timer1+1 5290 rcm1 jsr exit 5300 jsr getnum ;get a chr from the modem 5310 lda stat 5320 bne rcm2 ;no character received 5330 lda lastch 5340 sta buffer,y ;save chr in buffer 5350 cpy #$03 ;chr one of the first 3 5360 bcs rcm3 ;no, skip code check 5370 sta codebuf,y ;save chr in code buffer 5380 cpy #$02 ;on the 3rd chr 5390 bne rcm3 ;no, don't look at chrs yet 5400 lda codebuf ;check for a "ack" signal 5410 cmp #"a" 5420 bne rcm3 5430 lda codebuf+1 5440 cmp #"c" 5450 bne rcm3 5460 lda codebuf+2 5470 cmp #"k" 5480 beq rcm4 ;"ack" found 5490 rcm3 iny ;inc index 5500 cpy bufcount ;buffered all chrs 5510 bne rcm5 ;no, buffer next 5520 lda #%0001 ;yes, return bit 0 set 5530 sta stat 5540 rts 5550 ; 5560 rcm4 lda #$ff ;"syn" found, set timer to -1 5570 sta timer1 5580 sta timer1+1 5590 jmp rcm1 ;see if there is another chr 5600 ; 5610 rcm2 inc timer1 ;inc timer 5620 bne rcm6 5630 inc timer1+1 5640 rcm6 lda timer1 5650 ora timer1+1 ;timer now at zero 5660 beq rcm7 ;"syn" found with no following chrs 5670 lda timer1 5680 cmp #$06 5690 .if c64:lda timer1+1 5700 .if c64:cmp #16 ;time out yet 5710 bne rcm1 ;no, get next chr 5720 lda #%0010 ;yes, set bit 1 5730 sta stat 5740 cpy #$00 5750 beq rcm9 5760 lda #%0100 ;but if chrs received, set bit 2 5770 sta stat 5780 rcm9 jmp dodelay 5790 ; 5800 rcm7 lda #%1000 ;"ack" found, set bit 2 5810 sta stat 5820 rts 5830 ; 5840 ;create dummy block for transmission 5850 ; 5860 dummyblk lda bufpnt 5870 eor #$01 5880 sta bufpnt 5890 jsr thisbuf ;read block into "this" buffer 5900 ldy #numpos ;block number 5910 lda blocknum 5920 clc 5930 adc #$01 5940 sta (pntb),y ;set block number low part 5950 iny 5960 lda blocknum+1 5970 adc #$00 5980 sta (pntb),y ;set block number high part 5990 ldx #$02 6000 jsr chkin 6010 ldy #datapos ;actual block 6020 db1 jsr chrin 6030 sta (pntb),y 6040 iny 6050 jsr readst 6060 bne db4 6070 cpy maxsize 6080 bne db1 6090 tya 6100 pha 6110 jmp db5 6120 ; 6130 db4 tya 6140 pha 6150 ldy #numpos ;block number 6160 iny ;high part 6170 lda #255 6180 sta (pntb),y 6190 jmp db5 6200 ; 6210 dummybl1 pha ;save size of just read block 6220 db5 jsr clrchn 6230 .if c64:jsr reset 6240 .if c64:jsr dod2 6250 .if c64:jsr reset 6260 ldy #sizepos ;block size 6270 lda (pntb),y 6280 sta bufcount ;set bufcount for checksum 6290 jsr altbuf 6300 pla 6310 ldy #sizepos ;block size 6320 sta (pntb),y 6330 jsr checksum 6340 rts 6350 ; 6360 ;set pointers for current buffer 6370 ; 6380 thisbuf lda #<buffer 6390 sta pntb 6400 lda bufpnt 6410 clc 6420 adc #>buffer 6430 sta pntb+1 6440 rts 6450 ; 6460 ;set pointer b for alternate buffer 6470 ; 6480 altbuf lda #<buffer 6490 sta pntb 6500 lda bufpnt 6510 eor #$01 6520 clc 6530 adc #>buffer 6540 sta pntb+1 6550 rts 6560 ; 6570 ;calculate checksum 6580 ; 6590 checksum lda #$00 6600 sta check1 6610 sta check1+1 6620 sta check1+2 6630 sta check1+3 6640 ldy #sizepos 6650 cks1 lda check1 6660 clc 6670 adc (pntb),y 6680 sta check1 6690 bcc cks2 6700 inc check1+1 6710 cks2 lda check1+2 6720 eor (pntb),y 6730 sta check1+2 6740 lda check1+3 6750 rol a ;set or clear carry flag 6760 rol check1+2 6770 rol check1+3 6780 iny 6790 cpy bufcount 6800 bne cks1 6810 ldy #$00 6820 lda check1 6830 sta (pntb),y 6840 iny 6850 lda check1+1 6860 sta (pntb),y 6870 iny 6880 lda check1+2 6890 sta (pntb),y 6900 iny 6910 lda check1+3 6920 sta (pntb),y 6930 rts 6940 ; 6950 ;transmit a program 6960 ; 6970 transmit lda #$00 6980 sta endflag 6990 sta skpdelay 7000 sta dontdash 7010 lda #$01 7020 sta bufpnt 7030 lda #$ff 7040 sta blocknum 7050 sta blocknum+1 7060 jsr altbuf 7070 ldy #sizepos ;block size 7080 lda #datapos 7090 sta (pntb),y 7100 jsr thisbuf 7110 ldy #numpos ;block number 7120 lda #$00 7130 sta (pntb),y 7140 iny 7150 sta (pntb),y 7160 trm1 jsr tranhand 7170 beq trm1 7180 rec3 lda #$00 7190 sta lastch 7200 rts 7210 ; 7220 ;receive a file 7230 ; 7240 receive lda #$01 7250 sta blocknum 7260 lda #$00 7270 sta blocknum+1 7280 sta endflag 7290 sta bufpnt 7300 sta buffer+numpos ;block number 7310 sta buffer+numpos+1 7320 sta skpdelay 7330 lda #datapos 7340 sta buffer+sizepos ;block size 7350 lda #$00 7360 rec1 jsr rechand 7370 lda endflag 7380 bne rec3 7390 jsr match ;do checksums match 7400 bne rec2 ;no 7410 jsr clrchn 7420 lda bufcount 7430 cmp #datapos 7440 beq rec7 7450 ldx #$02 7460 jsr chkout 7470 ldy #datapos 7480 rec6 lda buffer,y 7490 jsr chrout 7500 iny 7510 cpy bufcount 7520 bne rec6 7530 jsr clrchn 7540 rec7 lda buffer+numpos+1 ;block number high order part 7550 cmp #$ff 7560 bne rec4 7570 lda #$01 7580 sta endflag 7590 lda #"*" 7600 .byt $2c 7610 rec4 lda #"-" 7620 jsr chrout 7630 .if c64:jsr reset 7640 lda #$00 7650 jmp rec1 7660 ; 7670 rec2 jsr clrchn 7680 lda #":" 7690 jsr chrout 7700 lda recsize 7710 sta buffer+sizepos 7720 lda #$03 7730 jmp rec1 7740 ; 7750 ;see if checksums match 7760 ; 7770 match lda buffer 7780 sta check 7790 lda buffer+1 7800 sta check+1 7810 lda buffer+2 7820 sta check+2 7830 lda buffer+3 7840 sta check+3 7850 jsr thisbuf 7860 lda recsize 7870 sta bufcount 7880 jsr checksum 7890 lda buffer 7900 cmp check 7910 bne mtc1 7920 lda buffer+1 7930 cmp check+1 7940 bne mtc1 7950 lda buffer+2 7960 cmp check+2 7970 bne mtc1 7980 lda buffer+3 7990 cmp check+3 8000 bne mtc1 8010 lda #$00 8020 rts 8030 ; 8040 mtc1 lda #$01 8050 rts 8060 ; 8070 ;receive file type block 8080 ; 8090 rectype lda #$00 8100 sta blocknum 8110 sta blocknum+1 8120 sta endflag 8130 sta bufpnt 8140 sta skpdelay 8150 lda #datapos 8160 clc 8170 adc #$01 8180 sta buffer+sizepos 8190 lda #$00 8200 rct3 jsr rechand 8210 lda endflag 8220 bne rct1 8230 jsr match 8240 bne rct2 8250 lda buffer+datapos 8260 sta filetype 8270 lda #$01 8280 sta endflag 8290 lda #$00 8300 jmp rct3 8310 ; 8320 rct2 lda recsize 8330 sta buffer+sizepos 8340 lda #$03 8350 jmp rct3 8360 ; 8370 rct1 lda #$00 8380 sta lastch 8390 rts 8400 ; 8410 ;transmit file type 8420 ; 8430 trantype lda #$00 8440 sta endflag 8450 sta skpdelay 8460 lda #$01 8470 sta bufpnt 8480 sta dontdash 8490 lda #255 8500 sta blocknum 8510 sta blocknum+1 8520 jsr altbuf 8530 ldy #sizepos ;block size 8540 lda #datapos 8550 clc 8560 adc #$01 8570 sta (pntb),y 8580 jsr thisbuf 8590 ldy #numpos ;block number 8600 lda #255 8610 sta (pntb),y 8620 iny 8630 sta (pntb),y 8640 ldy #datapos 8650 lda filetype 8660 sta (pntb),y 8670 lda #$01 8680 sta specmode 8690 trf1 jsr tranhand 8700 beq trf1 8710 lda #$00 8720 sta lastch 8730 rts 8740 ; 8750 ;do delay for timing 8760 ; 8770 dodelay inc skpdelay 8780 lda skpdelay 8790 cmp #$03 8800 bcc dod1 8810 lda #$00 8820 sta skpdelay 8830 lda delay 8840 beq dod2 8850 bne dod3 8860 ; 8870 dod1 lda delay 8880 beq dod3 8890 ; 8900 dod2 ldx #$00 8910 lp1 ldy #$00 8920 lp2 iny 8930 bne lp2 8940 inx 8950 cpx #120 8960 bne lp1 8970 dod3 rts 8980 ; 8990 ;print dash, colon, or star 9000 ; 9010 prtdash pha 9020 lda blocknum 9030 ora blocknum+1 9040 beq prtd1 9050 lda dontdash 9060 bne prtd1 9070 pla 9080 jsr chrout 9090 pha 9100 prtd1 pla 9110 rts 9120 ; 9130 ;reset rs232 port 9140 ; 9150 reset jsr setup 9160 lda rs232enb 9170 cmp #$80 9180 beq reset 9190 cmp #$92 9200 beq reset 9210 rts 9220 ; 9230 ;terminal emulation routine 9240 ; 9250 terminal jsr cursor 9260 term jsr getnum1 9270 lda stat 9280 bne keybj 9290 lda lastch 9300 and #$7f 9310 sta lastch 9320 cmp #$08 9330 beq ok1 9340 cmp #$0d 9350 beq ok1 9360 cmp #$20 9370 bpl ok1 9380 keybj jmp keyboard 9390 ; 9400 ok1 cmp #"a"+$20 9410 bcc ok2 9420 cmp #"z"+$21 9430 bcs ok2 9440 sec 9450 sbc #$20 9460 sta lastch 9470 jmp ok3 9480 ; 9490 ok2 cmp #$41 9500 bcc ok3 9510 cmp #"z"+1 9520 bcs ok3 9530 clc 9540 adc #$80 9550 sta lastch 9560 ; 9570 ok3 cmp #$08 9580 bne ok4 9590 lda #$14 9600 sta lastch 9610 ok4 cmp #34 ;quote 9620 bne ok5 9630 jsr chrout 9640 lda #20 9650 jsr chrout 9660 lda #34 9670 ok5 lda lastch 9680 cmp #$0d 9690 bne ok6 9700 lda #$20 9710 jsr chrout 9720 lda #$0d 9730 ok6 jsr chrout 9740 jsr cursor 9750 ; 9760 keyboard jsr getin 9770 beq term 9780 sta lastch 9790 cmp #$13 ;clr/home key 9800 beq termout 9810 cmp #"a" 9820 bcc ok7 ;<"a" 9830 cmp #"z"+1 9840 bcs ok7 ;>"z" 9850 clc 9860 adc #$20 ;to lowercase ascii 9870 sta lastch 9880 jmp ok8 9890 ; 9900 ok7 lda lastch 9910 cmp #"a"+$80 9920 bcc ok8 ;<"a" 9930 cmp #"z"+$81 9940 bcs ok8 ;>"z" 9950 sec 9960 sbc #$80 ;to uppercase ascii 9970 sta lastch 9980 ; 9990 ok8 cmp #20 ;backspace 10000 bne ok9 10010 lda #$08 10020 sta lastch 10030 ok9 cmp #$83 ;shift r/s 10040 bne oka 10050 lda #$10 ;ctrl p 10060 sta lastch 10070 oka ldx #$05 10080 jsr chkout 10090 lda lastch 10100 jsr chrout 10110 jsr clrchn 10120 jmp terminal 10130 ; 10140 termout rts ;with clr/home 10150 ; 10160 cursor lda #$12 10170 jsr chrout 10180 lda #$20 10190 jsr chrout 10200 lda #$9d 10210 jsr chrout 10220 lda #$92 10230 jsr chrout 10240 ; 10250 ;check for commodore key 10260 ; 10270 exit lda $028d ;is commodore 10280 cmp #$02 ;key down 10290 bne exit1 10300 exit2 pla 10310 tsx 10320 cpx stack 10330 bne exit2 10340 exit1 lda #$01 10350 sta lastch 10360 rts 10370 ; 10380 ;move chrout vector if necessary 10390 ; 10400 init lda ibsout ;been moved yet 10410 cmp #<newout 10420 bne init1 ;no, change it 10430 lda ibsout+1 10440 cmp #>newout 10450 beq init2 ;yes, leave it 10460 init1 lda ibsout ;store old chrout vector 10470 sta oldout 10480 lda ibsout+1 10490 sta oldout+1 10500 lda #<newout ;set new chrout vector 10510 sta ibsout 10520 lda #>newout 10530 sta ibsout+1 10540 init2 rts 10550 ; 10560 ;new chrout routine to correct for 1200 baud speed problems 10570 ; 10580 newout pha ;dupliciaton of original kernal routines 10590 lda defto ;test dfault output device for 10600 cmp #$03 ;screen, and... 10610 bne newout1 10620 pla ;if so, go back to original rom routines 10630 jmp (oldout) 10640 ; 10650 newout1 bcc newout2 ;if device number less than 3, 10660 pla ;also go back to original kernal routines 10670 jmp (oldout) 10680 ; 10690 newout2 lsr a 10700 pla 10710 sta ptr1 10720 txa 10730 pha 10740 tya 10750 pha 10760 bcc newout9 10770 jsr basic1 10780 bne newout5 10790 jsr basic2 10800 bcs newout7 10810 lda #$02 10820 ldy #$00 10830 sta (tape1),y 10840 iny 10850 sty bufpntr 10860 newout5 lda ptr1 10870 sta (tape1),y 10880 newout6 clc 10890 newout7 pla 10900 tay 10910 pla 10920 tax 10930 lda ptr1 10940 bcc newout8 10950 lda #$00 10960 newout8 rts 10970 ; 10980 newout9 jsr newout10 10990 jmp newout6 11000 ; 11010 newout11 jsr newout12 11020 newout10 ldy rodbe 11030 iny 11040 cpy rodbs 11050 beq newout11 11060 sty rodbe 11070 dey 11080 lda ptr1 11090 sta (robuf),y 11100 ; 11110 newout12 lda rs232enb 11120 lsr a 11130 bcs newout13 11140 lda #$10 11150 sta $dd0e 11160 lda xmit 11170 sta $dd04 11180 lda xmit+1 11190 sta $dd05 11200 lda #$81 11210 jsr basic3 11220 jsr basic4 11230 lda #$11 11240 sta $dd0e 11250 newout13 rts 11260 ; 11270 .end