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FDC: Fix data transfer len

PATCH New Hervé Poussineau 1 participant 1 message Apr 29, 2008

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Hervé Poussineau

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PATCH 1/1 FDC: Fix data transfer len

Hi,

In floppy controller, transfer data len is not correctly calculated.
We should read up to the last sector specified by the caller, and not up to the last sector of the floppy.

Attached patch fixes this issue.

Hervé

fdc.c +2 -2
Index: hw/fdc.c
===================================================================
@@ -1137,9 +1137,9 @@
     } else {
         int tmp;
         fdctrl->data_len = 128 << (fdctrl->fifo[5] > 7 ? 7 : fdctrl->fifo[5]);
-        tmp = (cur_drv->last_sect - ks + 1);
+        tmp = (fdctrl->fifo[6] - ks + 1);
         if (fdctrl->fifo[0] & 0x80)
-            tmp += cur_drv->last_sect;
+            tmp += fdctrl->fifo[6];
         fdctrl->data_len *= tmp;
     }
     fdctrl->eot = fdctrl->fifo[6];