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- Log ----------------------------------------------------------------- commit 30696a3a294bf520a303108d6ada81c741cd2590 Author: Raymond Toy toy.raymond@gmail.com Date: Wed Jul 23 21:24:11 2014 -0700

Add fdlibm trig for sparc.

Sparc's libm almost gets everything right but it fails two tests;

| Failed Form: (COS (* 13/4 PI)) | Expected -0.7071067811865471d0 but saw -0.7071067811865472d0 | | Failed Form: (SIN (SCALE-FLOAT 1.0d0 120)) | Expected 0.377820109360752d0 but saw 0.37782010936075205d0

In both of these cases, the expected value is the correct one, as confirmed by computing these values with maxima to 64 digits of precision. (Care must be used to look at the actual bits instead of rounding the printed decimal form.)

diff --git a/src/lisp/Config.sparc_sunc b/src/lisp/Config.sparc_sunc index 2e0b4e0..ffe4598 100644 --- a/src/lisp/Config.sparc_sunc +++ b/src/lisp/Config.sparc_sunc @@ -28,3 +28,22 @@ CFLAGS += -xlibmieee -O DEPEND_FLAGS = -xM ASFLAGS = $(AS_V8PLUS) OS_LINK_FLAGS = -M /usr/lib/ld/map.noexstk + +OS_SRC += k_sin.c k_cos.c k_tan.c s_sin.c s_cos.c s_tan.c sincos.c + +k_sin.o : k_sin.c + $(CC) -c $(CFLAGS) $(CPPFLAGS) $(CC_REM_PIO2) $< +k_cos.o : k_cos.c + $(CC) -c $(CFLAGS) $(CPPFLAGS) $(CC_REM_PIO2) $< +k_tan.o : k_tan.c + $(CC) -c $(CFLAGS) $(CPPFLAGS) $(CC_REM_PIO2) $< + +s_sin.o : s_sin.c + $(CC) -c $(CFLAGS) $(CPPFLAGS) $(CC_REM_PIO2) $< +s_cos.o : s_cos.c + $(CC) -c $(CFLAGS) $(CPPFLAGS) $(CC_REM_PIO2) $< +s_tan.o : s_tan.c + $(CC) -c $(CFLAGS) $(CPPFLAGS) $(CC_REM_PIO2) $< + +sincos.o : sincos.c + $(CC) -c $(CFLAGS) $(CPPFLAGS) $(CC_REM_PIO2) $<

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Summary of changes: src/lisp/Config.sparc_sunc | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)

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