----- Jiri Gaisler <j...@gaisler.se> schrieb: > > > On 07/19/2017 04:04 PM, Sebastian Huber wrote: > > Hello Jiri, > > > > I fixed a couple of tests. One remaining failure on the leon2 is mathf: > > > > *** BEGIN OF TEST MATHF *** > > acosf : 1.570796 > > acoshf : -nan > > asinf : 1.570796 > > asinhf : 0.881374 > > atanf : 0.665774 > > atan2f : 0.785398 > > atanhf : inf > > cbrtf : 3.000000 > > ceilf : 4.000000 > > copysignf : -3.500000 > > cosf : -0.000000 > > coshf : 2.509179 > > erff : 1.000000 > > erfcf : 0.000000 > > expf : 1.521962 > > exp2f : 1.337928 > > expm1f : 0.000420 > > fabsf : 1.123000 > > fdimf : 0.000000 > > floorf : 0.000000 > > floorf : -1.000000 > > > > Breakpoint 1, 0x40004044 in fmaf (x=x@entry=2.0999999, y=2.20000005, > > z=3.00999999) at > > /home/EB/sebastian_h/archive/gcc-git/newlib/libm/common/sf_fma.c:25 > > 25 return (float) (((double) x * (double) y) + (double) z); > > (gdb) disas 0x40004044 > > Dump of assembler code for function fmaf: > > 0x40004024 <+0>: add %sp, -80, %sp > > 0x40004028 <+4>: st %o1, [ %sp + 0x4c ] > > 0x4000402c <+8>: ld [ %sp + 0x4c ], %f8 > > 0x40004030 <+12>: st %o0, [ %sp + 0x4c ] > > 0x40004034 <+16>: ld [ %sp + 0x4c ], %f9 > > 0x40004038 <+20>: st %o2, [ %sp + 0x4c ] > > 0x4000403c <+24>: fsmuld %f8, %f9, %f0 > > 0x40004040 <+28>: ld [ %sp + 0x4c ], %f8 > > => 0x40004044 <+32>: fstod %f8, %f8 > > 0x40004048 <+36>: add %sp, 0x50, %sp > > 0x4000404c <+40>: faddd %f0, %f8, %f0 > > 0x40004050 <+44>: retl > > 0x40004054 <+48>: fdtos %f0, %f0 > > End of assembler dump. > > (gdb) p/x $fsr > > $1 = 0xe660 > > > > Is fstod implemented on the SIS? > fstod is implemented. > > The instruction that takes the trap is at 0x40004040, which is ld [ %sp > + 0x4c ], %f8. Remember that SPARC has deferred FPU trap model so it is > actually the previous FPU instruction FSMULD at 0x4000403c that > generated the trap. This instruction is not implemented in sis, and I am > not sure it is even implemented in some leon2/leon3 hardware. I will > check and report back ... > > Jiri. >
I use -mcpu=leon -mfix-at697f and according to the manual we have: The AT697F floating-point unit is based on the MEIKO core and implements the SPARC floating-point instruction-set defined in the SPARC Architecture Manual version 8. -- Sebastian Huber, embedded brains GmbH Address : Dornierstr. 4, D-82178 Puchheim, Germany Phone : +49 89 189 47 41-16 Fax : +49 89 189 47 41-09 E-Mail : sebastian.huber at embedded-brains.de PGP : Public key available on request. Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG. _______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
