Commit 771effeb8d49aaf4d1a39c0be5e4b722d22427ec
1 parent
b3bc1540
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
Showing
1 changed file
with
2 additions
and
2 deletions
hw/fdc.c
| @@ -1137,9 +1137,9 @@ static void fdctrl_start_transfer (fdctrl_t *fdctrl, int direction) | @@ -1137,9 +1137,9 @@ static void fdctrl_start_transfer (fdctrl_t *fdctrl, int direction) | ||
| 1137 | } else { | 1137 | } else { |
| 1138 | int tmp; | 1138 | int tmp; |
| 1139 | fdctrl->data_len = 128 << (fdctrl->fifo[5] > 7 ? 7 : fdctrl->fifo[5]); | 1139 | fdctrl->data_len = 128 << (fdctrl->fifo[5] > 7 ? 7 : fdctrl->fifo[5]); |
| 1140 | - tmp = (cur_drv->last_sect - ks + 1); | 1140 | + tmp = (fdctrl->fifo[6] - ks + 1); |
| 1141 | if (fdctrl->fifo[0] & 0x80) | 1141 | if (fdctrl->fifo[0] & 0x80) |
| 1142 | - tmp += cur_drv->last_sect; | 1142 | + tmp += fdctrl->fifo[6]; |
| 1143 | fdctrl->data_len *= tmp; | 1143 | fdctrl->data_len *= tmp; |
| 1144 | } | 1144 | } |
| 1145 | fdctrl->eot = fdctrl->fifo[6]; | 1145 | fdctrl->eot = fdctrl->fifo[6]; |