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Add support for FMLA (by element) to AArch64 sim.

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* simulator.c (do_FMLA_by_element): New function.
	(do_vec_op2): Call it.
This commit is contained in:
Nick Clifton 2016-05-06 10:35:33 +01:00
parent 405b757bdf
commit fd7ed446fb
2 changed files with 77 additions and 2 deletions
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5
sim/aarch64/ChangeLog
View File

@ -1,3 +1,8 @@
2016-05-06 Nick Clifton <nickc@redhat.com>
* simulator.c (do_FMLA_by_element): New function.
(do_vec_op2): Call it.
2016-04-27 Nick Clifton <nickc@redhat.com>
* simulator.c: Add TRACE_DECODE statements to all emulation

74
sim/aarch64/simulator.c
View File

@ -6033,6 +6033,67 @@ do_vec_MUL_by_element (sim_cpu *cpu)
}
}
static void
do_FMLA_by_element (sim_cpu *cpu)
{
/* instr[31] = 0
instr[30] = half/full
instr[29,23] = 00 1111 1
instr[22] = size
instr[21] = L
instr[20,16] = m
instr[15,12] = 0001
instr[11] = H
instr[10] = 0
instr[9,5] = Vn
instr[4,0] = Vd */
unsigned full = INSTR (30, 30);
unsigned size = INSTR (22, 22);
unsigned L = INSTR (21, 21);
unsigned vm = INSTR (20, 16);
unsigned H = INSTR (11, 11);
unsigned vn = INSTR (9, 5);
unsigned vd = INSTR (4, 0);
unsigned e;
NYI_assert (29, 23, 0x1F);
NYI_assert (15, 12, 0x1);
NYI_assert (10, 10, 0);
TRACE_DECODE (cpu, "emulated at line %d", __LINE__);
if (size)
{
double element1, element2;
if (! full || L)
HALT_UNALLOC;
element2 = aarch64_get_vec_double (cpu, vm, H);
for (e = 0; e < 2; e++)
{
element1 = aarch64_get_vec_double (cpu, vn, e);
element1 *= element2;
element1 += aarch64_get_vec_double (cpu, vd, e);
aarch64_set_vec_double (cpu, vd, e, element1);
}
}
else
{
float element1;
float element2 = aarch64_get_vec_float (cpu, vm, (H << 1) | L);
for (e = 0; e < (full ? 4 : 2); e++)
{
element1 = aarch64_get_vec_float (cpu, vn, e);
element1 *= element2;
element1 += aarch64_get_vec_float (cpu, vd, e);
aarch64_set_vec_float (cpu, vd, e, element1);
}
}
}
static void
do_vec_op2 (sim_cpu *cpu)
{
@ -6051,9 +6112,18 @@ do_vec_op2 (sim_cpu *cpu)
{
switch (INSTR (15, 10))
{
case 0x04:
case 0x06:
do_FMLA_by_element (cpu);
return;
case 0x20:
case 0x22: do_vec_MUL_by_element (cpu); return;
default: HALT_NYI;
case 0x22:
do_vec_MUL_by_element (cpu);
return;
default:
HALT_NYI;
}
}
else