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X-Received-From: 2a00:1450:400c:c0c::241 Subject: [Qemu-devel] [RISU PATCH v4 11/22] risugen: add dtype_msz address helper X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?utf-8?q?Alex_Benn=C3=A9e?= , qemu-arm@nongnu.org, richard.henderson@linaro.org, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: "Qemu-devel" From: Richard Henderson Signed-off-by: Richard Henderson Signed-off-by: Alex Bennée --- risugen_arm.pm | 9 +++++++++ 1 file changed, 9 insertions(+) -- 2.17.1 diff --git a/risugen_arm.pm b/risugen_arm.pm index 696bf5f..8d423b1 100644 --- a/risugen_arm.pm +++ b/risugen_arm.pm @@ -765,6 +765,15 @@ sub write_get_offset() write_risuop($OP_GETMEMBLOCK); } +# Return the log2 of the memory size of an operation described by dtype. +sub dtype_msz($) +{ + my ($dtype) = @_; + my $dth = $dtype >> 2; + my $dtl = $dtype & 3; + return $dtl >= $dth ? $dth : 3 - $dth; +} + sub reg($@) { my ($base, @trashed) = @_;