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Don't map Mystique memory ranges when base addresses are zero. Fixes boot of FIC

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VA-503 BIOS with Mystique selected.
This commit is contained in:
SarahW 2020-01-16 19:52:53 +00:00
commit 3d0986fb73
1 changed files with 12 additions and 3 deletions
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15
src/vid_mga.c
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@ -882,9 +882,18 @@ static void mystique_recalc_mapping(mystique_t *mystique)
return;
}
mem_mapping_set_addr(&mystique->ctrl_mapping, mystique->ctrl_base, 0x4000);
mem_mapping_set_addr(&mystique->lfb_mapping, mystique->lfb_base, 0x800000);
mem_mapping_set_addr(&mystique->iload_mapping, mystique->iload_base, 0x800000);
if (mystique->ctrl_base)
mem_mapping_set_addr(&mystique->ctrl_mapping, mystique->ctrl_base, 0x4000);
else
mem_mapping_disable(&mystique->ctrl_mapping);
if (mystique->lfb_base)
mem_mapping_set_addr(&mystique->lfb_mapping, mystique->lfb_base, 0x800000);
else
mem_mapping_disable(&mystique->lfb_mapping);
if (mystique->iload_base)
mem_mapping_set_addr(&mystique->iload_mapping, mystique->iload_base, 0x800000);
else
mem_mapping_disable(&mystique->iload_mapping);
if (mystique->pci_regs[0x41] & 1)
{