PDP8: Revised fix for Binary loader can't read multiple section tapes (#74) to make reading all sections optional based on the -A switch (from Dave Gesswein)
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2 changed files with 9 additions and 7 deletions
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@ -197,11 +197,11 @@ for (;;) {
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csum = origin = field = newf = 0; /* init */
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do { /* skip leader */
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if ((hi = sim_bin_getc (fi, &newf)) == EOF)
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if (sections_read != 0) {
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printf ("%d sections sucessfully read\n\r", sections_read);
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return SCPE_OK;
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} else
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return SCPE_FMT;
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if (sections_read != 0) {
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printf ("%d sections sucessfully read\n\r", sections_read);
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return SCPE_OK;
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} else
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return SCPE_FMT;
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} while ((hi == 0) || (hi >= 0200));
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for (;;) { /* data blocks */
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if ((lo = sim_bin_getc (fi, &newf)) == EOF) /* low char */
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@ -213,9 +213,11 @@ for (;;) {
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if (hi == 0200) { /* end of tape? */
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if ((csum - wd) & 07777) { /* valid csum? */
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if (sections_read != 0)
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printf ("%d sections sucessfully read\n\r", sections_read);
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printf ("%d sections sucessfully read\n\r", sections_read);
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return SCPE_CSUM;
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}
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}
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if (!(sim_switches & SWMASK ('A'))) /* Load all sections? */
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return SCPE_OK;
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sections_read++;
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break;
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}
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doc/pdp8_doc.doc
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