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binutils-gdb
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Fix accumulator shifts

This commit is contained in:
Michael Meissner 1996-09-09 17:30:36 +00:00
parent 517078c1b3
commit 069398aaff
2 changed files with 31 additions and 5 deletions
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6
sim/d10v/ChangeLog
View File

@ -1,3 +1,9 @@
Mon Sep 9 13:27:26 1996 Michael Meissner <meissner@tiktok.cygnus.com>
* simops.c (trace_output): Properly align accumulator output.
(OP_3{0,2,4}00): Properly parenthesize test expression. Add error
if shift count is too high.
Fri Sep 6 17:56:17 1996 Martin M. Hunt <hunt@pizza.cygnus.com>
* simops.c (OP_2600, OP_2601): Changed min and max comparisons

30
sim/d10v/simops.c
View File

@ -325,14 +325,14 @@ trace_output (result)
case OP_ACCUM:
case OP_ACCUM_OUTPUT:
(*d10v_callback->printf_filtered) (d10v_callback, " :: %*s0x%.2x%.8lx F0=%d F1=%d C=%d\n", SIZE_VALUES-10, "",
(*d10v_callback->printf_filtered) (d10v_callback, " :: %*s0x%.2x%.8lx F0=%d F1=%d C=%d\n", SIZE_VALUES-12, "",
((int)(State.a[OP[0]] >> 32) & 0xff),
((unsigned long)State.a[OP[0]]) & 0xffffffff,
State.F0 != 0, State.F1 != 0, State.C != 0);
break;
case OP_ACCUM_REVERSE:
(*d10v_callback->printf_filtered) (d10v_callback, " :: %*s0x%.2x%.8lx F0=%d F1=%d C=%d\n", SIZE_VALUES-10, "",
(*d10v_callback->printf_filtered) (d10v_callback, " :: %*s0x%.2x%.8lx F0=%d F1=%d C=%d\n", SIZE_VALUES-12, "",
((int)(State.a[OP[1]] >> 32) & 0xff),
((unsigned long)State.a[OP[1]]) & 0xffffffff,
State.F0 != 0, State.F1 != 0, State.C != 0);
@ -1913,8 +1913,14 @@ OP_3200 ()
{
int64 tmp;
trace_input ("sll", OP_ACCUM, OP_REG, OP_VOID);
if (State.regs[OP[1]] & 31 <= 16)
if ((State.regs[OP[1]] & 31) <= 16)
tmp = SEXT40 (State.a[OP[0]]) << (State.regs[OP[1]] & 31);
else
{
(*d10v_callback->printf_filtered) (d10v_callback, "ERROR: shift value %d too large.\n", State.regs[OP[1]] & 31);
State.exception = SIGILL;
return;
}
if (State.ST)
{
@ -1990,8 +1996,15 @@ void
OP_3400 ()
{
trace_input ("sra", OP_ACCUM, OP_REG, OP_VOID);
if (State.regs[OP[1]] & 31 <= 16)
if ((State.regs[OP[1]] & 31) <= 16)
State.a[OP[0]] >>= (State.regs[OP[1]] & 31);
else
{
(*d10v_callback->printf_filtered) (d10v_callback, "ERROR: shift value %d too large.\n", State.regs[OP[1]] & 31);
State.exception = SIGILL;
return;
}
trace_output (OP_ACCUM);
}
@ -2030,8 +2043,15 @@ void
OP_3000 ()
{
trace_input ("srl", OP_ACCUM, OP_REG, OP_VOID);
if (State.regs[OP[1]] & 31 <= 16)
if ((State.regs[OP[1]] & 31) <= 16)
State.a[OP[0]] >>= (State.regs[OP[1]] & 31);
else
{
(*d10v_callback->printf_filtered) (d10v_callback, "ERROR: shift value %d too large.\n", State.regs[OP[1]] & 31);
State.exception = SIGILL;
return;
}
trace_output (OP_ACCUM);
}