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acpi: extend aml_shiftright() to accept target argument

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it allows to express ShiftRight(A,B,C) syntax

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
This commit is contained in:
Igor Mammedov 2015-12-10 00:41:06 +01:00 • committed by Michael S. Tsirkin
parent f411199de7
commit c360639aee
3 changed files with 4 additions and 4 deletions
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2
hw/i386/acpi-build.c
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@ -667,7 +667,7 @@ static Aml *build_prt(void)
/* slot = pin >> 2 */
aml_append(while_ctx,
aml_store(aml_shiftright(pin, aml_int(2)), slot));
aml_store(aml_shiftright(pin, aml_int(2), NULL), slot));
/* lnk_idx = (slot + pin) & 3 */
aml_append(while_ctx,
aml_store(aml_and(aml_add(pin, slot, NULL), aml_int(3)), lnk_idx));