target/m68k: implement fatan

Using a local m68k floatx80_atan()
[copied from previous:
Written by Andreas Grabher for Previous, NeXT Computer Emulator.]

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180312202728.23790-6-laurent@vivier.eu>

1 files changed, 131 insertions, 0 deletions

diff --git a/target/m68k/softfloat_fpsp_tables.h b/target/m68k/softfloat_fpsp_tables.h
index a9c86a5af2..3f1419ee6e 100644
--- a/target/m68k/softfloat_fpsp_tables.h
+++ b/target/m68k/softfloat_fpsp_tables.h
@@ -507,4 +507,135 @@ static const float32 pi_tbl2[65] = {
     const_float32(0x20D00000),
     const_float32(0xA1800000),
 };
+
+static const floatx80 atan_tbl[128] = {
+    make_floatx80_init(0x3FFB, 0x83D152C5060B7A51),
+    make_floatx80_init(0x3FFB, 0x8BC8544565498B8B),
+    make_floatx80_init(0x3FFB, 0x93BE406017626B0D),
+    make_floatx80_init(0x3FFB, 0x9BB3078D35AEC202),
+    make_floatx80_init(0x3FFB, 0xA3A69A525DDCE7DE),
+    make_floatx80_init(0x3FFB, 0xAB98E94362765619),
+    make_floatx80_init(0x3FFB, 0xB389E502F9C59862),
+    make_floatx80_init(0x3FFB, 0xBB797E436B09E6FB),
+    make_floatx80_init(0x3FFB, 0xC367A5C739E5F446),
+    make_floatx80_init(0x3FFB, 0xCB544C61CFF7D5C6),
+    make_floatx80_init(0x3FFB, 0xD33F62F82488533E),
+    make_floatx80_init(0x3FFB, 0xDB28DA8162404C77),
+    make_floatx80_init(0x3FFB, 0xE310A4078AD34F18),
+    make_floatx80_init(0x3FFB, 0xEAF6B0A8188EE1EB),
+    make_floatx80_init(0x3FFB, 0xF2DAF1949DBE79D5),
+    make_floatx80_init(0x3FFB, 0xFABD581361D47E3E),
+    make_floatx80_init(0x3FFC, 0x8346AC210959ECC4),
+    make_floatx80_init(0x3FFC, 0x8B232A08304282D8),
+    make_floatx80_init(0x3FFC, 0x92FB70B8D29AE2F9),
+    make_floatx80_init(0x3FFC, 0x9ACF476F5CCD1CB4),
+    make_floatx80_init(0x3FFC, 0xA29E76304954F23F),
+    make_floatx80_init(0x3FFC, 0xAA68C5D08AB85230),
+    make_floatx80_init(0x3FFC, 0xB22DFFFD9D539F83),
+    make_floatx80_init(0x3FFC, 0xB9EDEF453E900EA5),
+    make_floatx80_init(0x3FFC, 0xC1A85F1CC75E3EA5),
+    make_floatx80_init(0x3FFC, 0xC95D1BE828138DE6),
+    make_floatx80_init(0x3FFC, 0xD10BF300840D2DE4),
+    make_floatx80_init(0x3FFC, 0xD8B4B2BA6BC05E7A),
+    make_floatx80_init(0x3FFC, 0xE0572A6BB42335F6),
+    make_floatx80_init(0x3FFC, 0xE7F32A70EA9CAA8F),
+    make_floatx80_init(0x3FFC, 0xEF88843264ECEFAA),
+    make_floatx80_init(0x3FFC, 0xF7170A28ECC06666),
+    make_floatx80_init(0x3FFD, 0x812FD288332DAD32),
+    make_floatx80_init(0x3FFD, 0x88A8D1B1218E4D64),
+    make_floatx80_init(0x3FFD, 0x9012AB3F23E4AEE8),
+    make_floatx80_init(0x3FFD, 0x976CC3D411E7F1B9),
+    make_floatx80_init(0x3FFD, 0x9EB689493889A227),
+    make_floatx80_init(0x3FFD, 0xA5EF72C34487361B),
+    make_floatx80_init(0x3FFD, 0xAD1700BAF07A7227),
+    make_floatx80_init(0x3FFD, 0xB42CBCFAFD37EFB7),
+    make_floatx80_init(0x3FFD, 0xBB303A940BA80F89),
+    make_floatx80_init(0x3FFD, 0xC22115C6FCAEBBAF),
+    make_floatx80_init(0x3FFD, 0xC8FEF3E686331221),
+    make_floatx80_init(0x3FFD, 0xCFC98330B4000C70),
+    make_floatx80_init(0x3FFD, 0xD6807AA1102C5BF9),
+    make_floatx80_init(0x3FFD, 0xDD2399BC31252AA3),
+    make_floatx80_init(0x3FFD, 0xE3B2A8556B8FC517),
+    make_floatx80_init(0x3FFD, 0xEA2D764F64315989),
+    make_floatx80_init(0x3FFD, 0xF3BF5BF8BAD1A21D),
+    make_floatx80_init(0x3FFE, 0x801CE39E0D205C9A),
+    make_floatx80_init(0x3FFE, 0x8630A2DADA1ED066),
+    make_floatx80_init(0x3FFE, 0x8C1AD445F3E09B8C),
+    make_floatx80_init(0x3FFE, 0x91DB8F1664F350E2),
+    make_floatx80_init(0x3FFE, 0x97731420365E538C),
+    make_floatx80_init(0x3FFE, 0x9CE1C8E6A0B8CDBA),
+    make_floatx80_init(0x3FFE, 0xA22832DBCADAAE09),
+    make_floatx80_init(0x3FFE, 0xA746F2DDB7602294),
+    make_floatx80_init(0x3FFE, 0xAC3EC0FB997DD6A2),
+    make_floatx80_init(0x3FFE, 0xB110688AEBDC6F6A),
+    make_floatx80_init(0x3FFE, 0xB5BCC49059ECC4B0),
+    make_floatx80_init(0x3FFE, 0xBA44BC7DD470782F),
+    make_floatx80_init(0x3FFE, 0xBEA94144FD049AAC),
+    make_floatx80_init(0x3FFE, 0xC2EB4ABB661628B6),
+    make_floatx80_init(0x3FFE, 0xC70BD54CE602EE14),
+    make_floatx80_init(0x3FFE, 0xCD000549ADEC7159),
+    make_floatx80_init(0x3FFE, 0xD48457D2D8EA4EA3),
+    make_floatx80_init(0x3FFE, 0xDB948DA712DECE3B),
+    make_floatx80_init(0x3FFE, 0xE23855F969E8096A),
+    make_floatx80_init(0x3FFE, 0xE8771129C4353259),
+    make_floatx80_init(0x3FFE, 0xEE57C16E0D379C0D),
+    make_floatx80_init(0x3FFE, 0xF3E10211A87C3779),
+    make_floatx80_init(0x3FFE, 0xF919039D758B8D41),
+    make_floatx80_init(0x3FFE, 0xFE058B8F64935FB3),
+    make_floatx80_init(0x3FFF, 0x8155FB497B685D04),
+    make_floatx80_init(0x3FFF, 0x83889E3549D108E1),
+    make_floatx80_init(0x3FFF, 0x859CFA76511D724B),
+    make_floatx80_init(0x3FFF, 0x87952ECFFF8131E7),
+    make_floatx80_init(0x3FFF, 0x89732FD19557641B),
+    make_floatx80_init(0x3FFF, 0x8B38CAD101932A35),
+    make_floatx80_init(0x3FFF, 0x8CE7A8D8301EE6B5),
+    make_floatx80_init(0x3FFF, 0x8F46A39E2EAE5281),
+    make_floatx80_init(0x3FFF, 0x922DA7D791888487),
+    make_floatx80_init(0x3FFF, 0x94D19FCBDEDF5241),
+    make_floatx80_init(0x3FFF, 0x973AB94419D2A08B),
+    make_floatx80_init(0x3FFF, 0x996FF00E08E10B96),
+    make_floatx80_init(0x3FFF, 0x9B773F9512321DA7),
+    make_floatx80_init(0x3FFF, 0x9D55CC320F935624),
+    make_floatx80_init(0x3FFF, 0x9F100575006CC571),
+    make_floatx80_init(0x3FFF, 0xA0A9C290D97CC06C),
+    make_floatx80_init(0x3FFF, 0xA22659EBEBC0630A),
+    make_floatx80_init(0x3FFF, 0xA388B4AFF6EF0EC9),
+    make_floatx80_init(0x3FFF, 0xA4D35F1061D292C4),
+    make_floatx80_init(0x3FFF, 0xA60895DCFBE3187E),
+    make_floatx80_init(0x3FFF, 0xA72A51DC7367BEAC),
+    make_floatx80_init(0x3FFF, 0xA83A51530956168F),
+    make_floatx80_init(0x3FFF, 0xA93A20077539546E),
+    make_floatx80_init(0x3FFF, 0xAA9E7245023B2605),
+    make_floatx80_init(0x3FFF, 0xAC4C84BA6FE4D58F),
+    make_floatx80_init(0x3FFF, 0xADCE4A4A606B9712),
+    make_floatx80_init(0x3FFF, 0xAF2A2DCD8D263C9C),
+    make_floatx80_init(0x3FFF, 0xB0656F81F22265C7),
+    make_floatx80_init(0x3FFF, 0xB18465150F71496A),
+    make_floatx80_init(0x3FFF, 0xB28AAA156F9ADA35),
+    make_floatx80_init(0x3FFF, 0xB37B44FF3766B895),
+    make_floatx80_init(0x3FFF, 0xB458C3DCE9630433),
+    make_floatx80_init(0x3FFF, 0xB525529D562246BD),
+    make_floatx80_init(0x3FFF, 0xB5E2CCA95F9D88CC),
+    make_floatx80_init(0x3FFF, 0xB692CADA7ACA1ADA),
+    make_floatx80_init(0x3FFF, 0xB736AEA7A6925838),
+    make_floatx80_init(0x3FFF, 0xB7CFAB287E9F7B36),
+    make_floatx80_init(0x3FFF, 0xB85ECC66CB219835),
+    make_floatx80_init(0x3FFF, 0xB8E4FD5A20A593DA),
+    make_floatx80_init(0x3FFF, 0xB99F41F64AFF9BB5),
+    make_floatx80_init(0x3FFF, 0xBA7F1E17842BBE7B),
+    make_floatx80_init(0x3FFF, 0xBB4712857637E17D),
+    make_floatx80_init(0x3FFF, 0xBBFABE8A4788DF6F),
+    make_floatx80_init(0x3FFF, 0xBC9D0FAD2B689D79),
+    make_floatx80_init(0x3FFF, 0xBD306A39471ECD86),
+    make_floatx80_init(0x3FFF, 0xBDB6C731856AF18A),
+    make_floatx80_init(0x3FFF, 0xBE31CAC502E80D70),
+    make_floatx80_init(0x3FFF, 0xBEA2D55CE33194E2),
+    make_floatx80_init(0x3FFF, 0xBF0B10B7C03128F0),
+    make_floatx80_init(0x3FFF, 0xBF6B7A18DACB778D),
+    make_floatx80_init(0x3FFF, 0xBFC4EA4663FA18F6),
+    make_floatx80_init(0x3FFF, 0xC0181BDE8B89A454),
+    make_floatx80_init(0x3FFF, 0xC065B066CFBF6439),
+    make_floatx80_init(0x3FFF, 0xC0AE345F56340AE6),
+    make_floatx80_init(0x3FFF, 0xC0F222919CB9E6A7)
+};
 #endif