Fix Prometheus PCI bridge byte wide access endian swap

diff --git a/pci.cpp b/pci.cpp
index 3d845512a5506a932ed60db2cf982dca188bfb12..2835fdeadeb292442ef8495f8a34a3d875e860ea 100644 (file)
--- a/pci.cpp
+++ b/pci.cpp
@@ -472,7 +472,11 @@ static uae_u8 *get_pci_config(uaecptr addr, int size, uae_u32 v, int *endianswap
                        }
                        *endianswap = 0;
                } else {
-                       c[off] = pcibs->board->pci_get_config(off ^ 3);
+                       if (pcib->endian_swap_config > 0) {
+                               c[off] = pcibs->board->pci_get_config(off ^ 0);
+                       } else {
+                               c[off] = pcibs->board->pci_get_config(off ^ 3);
+                       }
                        *endianswap = 0;
                }
        } else {
@@ -559,7 +563,11 @@ static void update_pci_config(uaecptr addr, int size)
                                pcibs->board->pci_put_config(off + 1, d[off + 1]);
                        }
                } else {
-                       pcibs->board->pci_put_config(off + 0, d[off + 0]);
+                       if (pcib->endian_swap_config > 0) {
+                               pcibs->board->pci_put_config(off ^ 0, d[off + 0]);
+                       } else {
+                               pcibs->board->pci_put_config(off ^ 3, d[off + 0]);
+                       }
                }
                if ((off >= 0x10 && off < 0x10 + (MAX_PCI_BARS - 1) * 4) || (off >= 0x30 && off < 0x34)) {
                        int index;