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FDC: Fix data transfer len (Hervé Poussineau) 

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.



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4294 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
blueswir1 2008-05-01 19:05:12 +00:00
parent b3bc154098
commit 771effeb8d
1 changed files with 2 additions and 2 deletions
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4
hw/fdc.c
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@ -1137,9 +1137,9 @@ static void fdctrl_start_transfer (fdctrl_t *fdctrl, int direction)
} 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];