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target/m68k: implement flog2

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Using a local m68k floatx80_log2()
[copied from previous:
Written by Andreas Grabher for Previous, NeXT Computer Emulator.]

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180305203910.10391-6-laurent@vivier.eu>
This commit is contained in:
Laurent Vivier 2018-03-05 21:39:07 +01:00
parent 248efb66fb
commit 67b453ed73
5 changed files with 77 additions and 0 deletions
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target/m68k/helper.h
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@ -71,6 +71,7 @@ DEF_HELPER_4(fscale, void, env, fp, fp, fp)
DEF_HELPER_3(flognp1, void, env, fp, fp)
DEF_HELPER_3(flogn, void, env, fp, fp)
DEF_HELPER_3(flog10, void, env, fp, fp)
DEF_HELPER_3(flog2, void, env, fp, fp)
DEF_HELPER_3(mac_move, void, env, i32, i32)
DEF_HELPER_3(macmulf, i64, env, i32, i32)