65 lines
2.5 KiB
Text
65 lines
2.5 KiB
Text
Index: qemu/hw/dma.c
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@@ -344,9 +344,11 @@ static void channel_run (int ncont, int
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}
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#endif
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- n = r->transfer_handler (r->opaque, ichan + (ncont << 2),
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- r->now[COUNT], (r->base[COUNT] + 1) << ncont);
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- r->now[COUNT] = n;
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+ if (r->transfer_handler) {
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+ n = r->transfer_handler (r->opaque, ichan + (ncont << 2),
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+ r->now[COUNT], (r->base[COUNT] + 1) << ncont);
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+ r->now[COUNT] = n;
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+ }
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ldebug ("dma_pos %d size %d\n", n, (r->base[COUNT] + 1) << ncont);
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}
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Index: qemu/hw/fdc.c
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@@ -1322,7 +1322,8 @@
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fd_sector(cur_drv));
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return 0;
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}
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- if (bdrv_read(cur_drv->bs, fd_sector(cur_drv), fdctrl->fifo, 1) < 0) {
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+ if (cur_drv->bs == NULL ||
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+ bdrv_read(cur_drv->bs, fd_sector(cur_drv), fdctrl->fifo, 1) < 0) {
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FLOPPY_DPRINTF("error getting sector %d\n",
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fd_sector(cur_drv));
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/* Sure, image size is too small... */
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@@ -1776,7 +1777,8 @@
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if (pos == FD_SECTOR_LEN - 1 ||
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fdctrl->data_pos == fdctrl->data_len) {
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cur_drv = get_cur_drv(fdctrl);
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- if (bdrv_write(cur_drv->bs, fd_sector(cur_drv), fdctrl->fifo, 1) < 0) {
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+ if (cur_drv->bs == NULL ||
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+ bdrv_write(cur_drv->bs, fd_sector(cur_drv), fdctrl->fifo, 1) < 0) {
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FLOPPY_ERROR("writing sector %d\n", fd_sector(cur_drv));
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return;
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}
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Index: qemu-0.8.2/hw/sb16.c
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===================================================================
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--- qemu-0.8.2.orig/hw/sb16.c 2006-07-22 20:23:34.000000000 +0300
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+++ qemu-0.8.2/hw/sb16.c 2007-04-20 06:05:59.000000000 +0300
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@@ -1235,8 +1235,10 @@ static int SB_read_DMA (void *opaque, in
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s->block_size);
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#endif
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- while (s->left_till_irq <= 0) {
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- s->left_till_irq = s->block_size + s->left_till_irq;
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+ if (s->block_size) {
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+ while (s->left_till_irq <= 0) {
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+ s->left_till_irq = s->block_size + s->left_till_irq;
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+ }
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}
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return dma_pos;
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Index: qemu/hw/i8259.c
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@@ -291,7 +291,8 @@ static void pic_ioport_write(void *opaqu
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s->init4 = val & 1;
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s->single_mode = val & 2;
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if (val & 0x08) {
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- hw_error("level sensitive irq not supported");
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+ /* hw_error("level sensitive irq not supported"); */
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+ return;
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}
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} else if (val & 0x08) {
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if (val & 0x04) {
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