A large commit.

[pdp8.git] / sw / dumprest / original / resttd8e.c

diff --git a/sw/dumprest/original/resttd8e.c b/sw/dumprest/original/resttd8e.c
new file mode 100644 (file)
index 0000000..811a9c9
--- /dev/null
+++ b/sw/dumprest/original/resttd8e.c
@@ -0,0 +1,144 @@
+/* This program sends an td8e Dectape image out the serial port to the PDP8
+   restore program.  It will prompt for the file to send or use first command
+   line argument.  It needs a config file dumprest.cfg or $HOME/.dumprest.cfg
+   with the format defined in config.c
+
+   This program should be running before the PDP8 end is started.
+
+   On the PC ctrl-break will terminate the program
+*/
+#ifdef PC
+#include "encom.h"
+#else
+#include <termios.h>
+#include <unistd.h>
+#include <memory.h>
+#endif
+
+#include <stdio.h>
+#include <fcntl.h>
+#include <time.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define ARRAYSIZE(a) (sizeof(a) / sizeof(a[0]))
+
+int terminate = 0;
+
+#define BLKSIZE 129
+
+#include "config.c"
+#include "comm.c"
+
+main(argc,argv)
+   int argc;
+   char *argv[];
+{
+   int fd;
+   FILE *in;
+   char filename[256];
+   char serial_dev[256];
+   long baud;
+   int two_stop;
+   unsigned char buf[3];
+   unsigned short block_buf[BLKSIZE];
+   int count,block;
+   unsigned int chksum = 0;
+   int readsz;
+   int rc;
+
+   setup_config(&baud,&two_stop,serial_dev);
+
+   if (argc > 1) {
+      strcpy(filename,argv[1]);
+   } else {
+      printf("Enter file name to send\n");
+      fflush(stdout);
+      scanf("%s",filename);
+   }
+
+#ifdef PC
+   in = fopen(filename,"rb");
+#else
+   in = fopen(filename,"r");
+#endif
+   if (in == NULL) {
+      fprintf(stderr,"On file %s ",filename);
+      perror("open failed");
+      exit(1);
+   }
+
+#if 0
+      /* For testing write to file, only works in unix version */
+   fd = open("dat",O_RDWR | O_CREAT | O_TRUNC,0666);
+   if (fd < 0) {
+      perror("Open failed on dat");
+      exit(1);
+   }
+#else
+   fd = init_comm(serial_dev,baud,two_stop);
+#endif
+
+   count = BLKSIZE;
+   block = 0;
+   readsz = 0;
+   while(!terminate) {
+         /* If start of new block */
+      if (count == BLKSIZE) {
+         count = 0;
+            /* If sent all blocks pdp8 asked for wait for it to ask for more */
+         if (--readsz <= 0) {
+            while (ser_read(fd,(char *)buf,1) < 1 && !terminate);
+            readsz = buf[0];
+/*
+            printf("Got readsize %d\n",readsz);
+*/
+         }
+        if ((rc = fread(block_buf,2,BLKSIZE,in)) < BLKSIZE) {
+              /* No more data */
+           if (rc < 0) {
+              perror("\nfile read failed\n");
+              exit(1);
+           }
+             /* Must be at start of block when data done */
+           if (rc != 0) {
+              printf("\nEarly end of file %d, %d\n",count,rc);
+              exit(1);
+           }
+              /* Send end of data flag */
+           buf[0] = 0xfe;
+           ser_write(fd,(char *)buf,1);
+              /* Wait for PDP to ask for checksum */
+           while (ser_read(fd,(char *)buf,1) < 1 && !terminate);
+           chksum = -chksum;
+           buf[0] = chksum;
+           buf[1] = (chksum & 0xfff) >> 8;
+           ser_write(fd,(char *)buf,2);
+           exit(0);
+        }
+         buf[0] = 0xff;
+         ser_write(fd,(char *)buf,1);
+         block++;
+         if (block % 5 == 0) {
+            printf("Block %d\r",block);
+            fflush(stdout);
+         }
+      }
+         /* Send 2 words as 3 bytes */
+      chksum += block_buf[count];
+      buf[0] = block_buf[count];
+      if (count + 1 == BLKSIZE) {
+         buf[1] = (block_buf[count] >> 8);
+         count++;
+         ser_write(fd,(char *)buf,2);
+      } else {
+         chksum += block_buf[count+1];
+         buf[1] = (block_buf[count] >> 8) | (block_buf[count+1] << 4);
+         buf[2] = (block_buf[count+1] >> 4);
+         count += 2;
+         ser_write(fd,(char *)buf,3);
+      }
+   }
+   return 1;
+}