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-rw-r--r--src/superio/acpi/pnp.asl2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/superio/acpi/pnp.asl b/src/superio/acpi/pnp.asl
index 51fdb4fbb8..167c3636b1 100644
--- a/src/superio/acpi/pnp.asl
+++ b/src/superio/acpi/pnp.asl
@@ -102,7 +102,7 @@
#define PNP_READ_IO(IO_FROM, RESOURCE_TEMPLATE, IO_TAG) \
CreateWordField (RESOURCE_TEMPLATE, IO_TAG._MIN, IO_TAG##I)\
CreateWordField (RESOURCE_TEMPLATE, IO_TAG._MAX, IO_TAG##A)\
- Or (ShiftLeft (IO_FROM##_HIGH_BYTE, 8), IO_FROM##_LOW_BYTE, Local0)\
+ Or (IO_FROM##_HIGH_BYTE << 8, IO_FROM##_LOW_BYTE, Local0)\
IO_TAG##I = Local0 \
IO_TAG##A = Local0