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target/m68k: optimize bcd_flags() using extract op 

Done with the Coccinelle semantic patch
scripts/coccinelle/tcg_gen_extract.cocci.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718045540.16322-5-f4bug@amsat.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Philippe Mathieu-Daudé 2017-07-18 01:55:34 -03:00 committed by Richard Henderson
parent 68cedf733a
commit 0d9acef240
1 changed files with 1 additions and 2 deletions
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3
target/m68k/translate.c
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@ -1749,8 +1749,7 @@ static void bcd_flags(TCGv val)
tcg_gen_andi_i32(QREG_CC_C, val, 0x0ff);
tcg_gen_or_i32(QREG_CC_Z, QREG_CC_Z, QREG_CC_C);
tcg_gen_shri_i32(QREG_CC_C, val, 8);
tcg_gen_andi_i32(QREG_CC_C, QREG_CC_C, 1);
tcg_gen_extract_i32(QREG_CC_C, val, 8, 1);
tcg_gen_mov_i32(QREG_CC_X, QREG_CC_C);
}