tree cba90818844fbcbc29775292eb6e5d5a40f20fab
parent a264bf34424c815d4565cf1ba0e3cd56b7d5c816
author Marc Zyngier <marc.zyngier@arm.com> 1512320948 +0000
committer Marc Zyngier <marc.zyngier@arm.com> 1521464607 +0000

arm64: insn: Add encoder for bitwise operations using literals

We lack a way to encode operations such as AND, ORR, EOR that take
an immediate value. Doing so is quite involved, and is all about
reverse engineering the decoding algorithm described in the
pseudocode function DecodeBitMasks().

This has been tested by feeding it all the possible literal values
and comparing the output with that of GAS.

Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>