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sim/common: Wire in df/di conversion 

Up until now these have not been used in any CGEN targets, add them as
they are now used by OpenRISC.

sim/common/ChangeLog:

	* cgen-accfp.c (floatdidf, fixdfdi): New functions.
	(cgen_init_accurate_fpu): Add floatdidf and fixdfdi.
This commit is contained in:
Stafford Horne 2019-06-13 21:27:10 +09:00
parent 7ccbb4437a
commit 688cea90bc
2 changed files with 29 additions and 0 deletions
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5
sim/common/ChangeLog
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@ -1,3 +1,8 @@
2019-06-13 Stafford Horne <shorne@gmail.com>
* cgen-accfp.c (floatdidf, fixdfdi): New functions.
(cgen_init_accurate_fpu): Add floatdidf and fixdfdi.
2019-04-13 Andrew Burgess <andrew.burgess@embecosm.com>
* cgen-ops.h (SUBWORDXFSI): Compare HOST_BYTE_ORDER not

24
sim/common/cgen-accfp.c
View File

@ -349,6 +349,17 @@ floatsidf (CGEN_FPU* fpu, int how UNUSED, SI x)
return res;
}
static DF
floatdidf (CGEN_FPU* fpu, int how UNUSED, DI x)
{
sim_fpu ans;
unsigned64 res;
sim_fpu_i64to (&ans, x, sim_fpu_round_near);
sim_fpu_to64 (&res, &ans);
return res;
}
static SF
ufloatsisf (CGEN_FPU* fpu, int how UNUSED, USI x)
{
@ -382,6 +393,17 @@ fixdfsi (CGEN_FPU* fpu, int how UNUSED, DF x)
return res;
}
static DI
fixdfdi (CGEN_FPU* fpu, int how UNUSED, DF x)
{
sim_fpu op1;
unsigned64 res;
sim_fpu_64to (&op1, x);
sim_fpu_to64i (&res, &op1, sim_fpu_round_near);
return res;
}
static USI
ufixsfsi (CGEN_FPU* fpu, int how UNUSED, SF x)
{
@ -739,8 +761,10 @@ cgen_init_accurate_fpu (SIM_CPU* cpu, CGEN_FPU* fpu, CGEN_FPU_ERROR_FN* error)
o->ftruncdfsf = ftruncdfsf;
o->floatsisf = floatsisf;
o->floatsidf = floatsidf;
o->floatdidf = floatdidf;
o->ufloatsisf = ufloatsisf;
o->fixsfsi = fixsfsi;
o->fixdfsi = fixdfsi;
o->fixdfdi = fixdfdi;
o->ufixsfsi = ufixsfsi;
}