1f18a1e6ab
The x87 fyl2x emulation is currently based around conversion to double. This is inherently unsuitable for a good emulation of any floatx80 operation. Reimplement using the soft-float operations, building on top of the reimplementation of fyl2xp1 and factoring out code to be shared between the two instructions. The included test assumes that the result in round-to-nearest mode should always be one of the two closest floating-point numbers to the mathematically exact result (including that it should be exact, in the exact cases which cover more cases than for fyl2xp1). Signed-off-by: Joseph Myers <joseph@codesourcery.com> Message-Id: <alpine.DEB.2.21.2006172321530.20587@digraph.polyomino.org.uk> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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| .. | ||
| system | ||
| hello-i386.c | ||
| Makefile.softmmu-target | ||
| Makefile.target | ||
| README | ||
| test-i386-code16.S | ||
| test-i386-f2xm1.c | ||
| test-i386-fbstp.c | ||
| test-i386-fisttp.c | ||
| test-i386-fldcst.c | ||
| test-i386-fp-exceptions.c | ||
| test-i386-fprem.c | ||
| test-i386-fscale.c | ||
| test-i386-fxam.c | ||
| test-i386-fxtract.c | ||
| test-i386-fyl2x.c | ||
| test-i386-fyl2xp1.c | ||
| test-i386-muldiv.h | ||
| test-i386-pcmpistri.c | ||
| test-i386-pseudo-denormal.c | ||
| test-i386-shift.h | ||
| test-i386-snan-convert.c | ||
| test-i386-ssse3.c | ||
| test-i386-vm86.S | ||
| test-i386.c | ||
| test-i386.h | ||
These are i386 specific guest programs test-i386 --------- This program executes most of the 16 bit and 32 bit x86 instructions and generates a text output, for comparison with the output obtained with a real CPU or another emulator. The Linux system call modify_ldt() is used to create x86 selectors to test some 16 bit addressing and 32 bit with segmentation cases. The Linux system call vm86() is used to test vm86 emulation. Various exceptions are raised to test most of the x86 user space exception reporting. linux-test ---------- This program tests various Linux system calls. It is used to verify that the system call parameters are correctly converted between target and host CPUs. test-i386-fprem --------------- test-mmap --------- sha1 ---- hello-i386 ----------