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Diffstat (limited to 'pc-bios/optionrom/optionrom.h')
-rw-r--r--pc-bios/optionrom/optionrom.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/pc-bios/optionrom/optionrom.h b/pc-bios/optionrom/optionrom.h
index 34d69af89..4dcb90645 100644
--- a/pc-bios/optionrom/optionrom.h
+++ b/pc-bios/optionrom/optionrom.h
@@ -66,7 +66,10 @@
outw %ax, (%dx); \
mov $BIOS_CFG_IOPORT_DATA, %dx; \
cld; \
- rep insb (%dx), %es:(%edi);
+ /* old as(1) doesn't like this insn so emit the bytes instead: \
+ rep insb (%dx), %es:(%edi); \
+ */ \
+ .dc.b 0x67,0xf3,0x6c
#define OPTION_ROM_START \
.code16; \