Commit | Line | Data |
---|---|---|
81e70d48 PH |
1 | /* This program receives an td8e Dectape image from the serial port from the |
2 | PDP8 dump program. It will prompt for the file to receive or use first | |
3 | command line argument. It needs a config file dumprest.cfg or | |
4 | $HOME/.dumprest.cfg with the format defined in config.c | |
5 | ||
6 | This program should be running before the PDP8 end is started. | |
7 | ||
8 | On the PC ctrl-break will terminate the program | |
9 | */ | |
10 | #ifdef PC | |
11 | #include "encom.h" | |
12 | #else | |
13 | #include <termios.h> | |
14 | #include <unistd.h> | |
15 | #include <memory.h> | |
16 | #endif | |
17 | ||
18 | #include <stdio.h> | |
19 | #include <fcntl.h> | |
20 | #include <time.h> | |
21 | #include <signal.h> | |
22 | #include <stdlib.h> | |
23 | #include <string.h> | |
24 | ||
25 | #define ARRAYSIZE(a) (sizeof(a) / sizeof(a[0])) | |
26 | ||
27 | int terminate = 0; | |
28 | ||
29 | #include "config.c" | |
30 | #include "comm.c" | |
31 | ||
32 | main(argc,argv) | |
33 | int argc; | |
34 | char *argv[]; | |
35 | { | |
36 | int fd,c,i; | |
37 | FILE *out; | |
38 | char filename[256]; | |
39 | char serial_dev[256]; | |
40 | long baud; | |
41 | int two_stop; | |
42 | unsigned char buf[200]; | |
43 | unsigned short temp; | |
44 | int count,block,byte; | |
45 | int chksum = 0; | |
46 | ||
47 | setup_config(&baud,&two_stop,serial_dev); | |
48 | ||
49 | if (argc > 1) { | |
50 | strcpy(filename,argv[1]); | |
51 | } else { | |
52 | printf("Enter file name to receive\n"); | |
53 | fflush(stdout); | |
54 | scanf("%s",filename); | |
55 | } | |
56 | ||
57 | #ifdef PC | |
58 | out = fopen(filename,"wb"); | |
59 | #else | |
60 | out = fopen(filename,"w"); | |
61 | #endif | |
62 | if (out < 0) { | |
63 | fprintf(stderr,"On file %s ",filename); | |
64 | perror("open failed"); | |
65 | exit(1); | |
66 | } | |
67 | ||
68 | #if 0 | |
69 | /* For testing read from file, only works in unix version */ | |
70 | fd = open("dat",O_RDONLY,0666); | |
71 | if (fd < 0) { | |
72 | perror("Open failed on dat"); | |
73 | exit(1); | |
74 | } | |
75 | #else | |
76 | fd = init_comm(serial_dev,baud,two_stop); | |
77 | #endif | |
78 | count = -1; | |
79 | block = 0; | |
80 | byte = 0; | |
81 | while(!terminate) { | |
82 | c = ser_read(fd,(char *)buf,sizeof(buf)); | |
83 | if (c < 0) { | |
84 | perror("Serial read failed"); | |
85 | exit(1); | |
86 | } | |
87 | for (i = 0; i < c; i++) { | |
88 | if (count < 0 ) { | |
89 | /* -2 = waiting for checksum */ | |
90 | if (count == -2) { | |
91 | if (byte == 0) { | |
92 | temp = buf[i]; | |
93 | byte = 1; | |
94 | } else { | |
95 | fclose(out); | |
96 | temp = temp | (buf[i] << 8); | |
97 | if (((temp + chksum) & 0xfff) != 0) { | |
98 | printf("\nChecksum mismatch %x %x\n",temp,chksum); | |
99 | exit(1); | |
100 | } | |
101 | printf("\nDone, wait for program to exit\n"); | |
102 | exit(0); | |
103 | } | |
104 | } else { | |
105 | /* -1 = waiting for block flag */ | |
106 | if (buf[i] != 0xff && buf[i] != 0xfd) { | |
107 | /* End of data flag */ | |
108 | if (buf[i] == 0xfe) { | |
109 | count = -2; | |
110 | byte = 0; | |
111 | } else { | |
112 | printf("\nMissing start of block flag\n"); | |
113 | exit(1); | |
114 | } | |
115 | } else { | |
116 | count = 0; | |
117 | if (buf[i] == 0xfd) | |
118 | printf("\nblock %d bad\n", block); | |
119 | } | |
120 | } | |
121 | } else { | |
122 | /* Count >= 0 is word count in block */ | |
123 | /* Byte is byte in 3 byte sequence for 2 words */ | |
124 | if (byte == 0) { | |
125 | temp = buf[i]; | |
126 | byte++; | |
127 | } else | |
128 | if (byte == 1) { | |
129 | temp = (temp | (buf[i] << 8)) & 0xfff; | |
130 | fwrite(&temp,2,1,out); | |
131 | chksum = chksum + temp; | |
132 | temp = buf[i] >> 4; | |
133 | byte++; | |
134 | count++; | |
135 | } else | |
136 | if (byte == 2) { | |
137 | temp = (temp | (buf[i] << 4)) & 0xfff; | |
138 | fwrite(&temp,2,1,out); | |
139 | chksum = chksum + temp; | |
140 | byte = 0; | |
141 | count++; | |
142 | } | |
143 | /* If at end of block setup for next */ | |
144 | if (count == 129) { | |
145 | count = -1; | |
146 | block++; | |
147 | byte = 0; | |
148 | if (block % 5 == 0) { | |
149 | printf("Block %d\r",block); | |
150 | fflush(stdout); | |
151 | } | |
152 | } | |
153 | } | |
154 | } | |
155 | } | |
156 | return 1; | |
157 | } |