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target/nios2: Support division error exception

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Division may (optionally) raise a division exception.
Since the linux kernel has been prepared for this for
some time, enable it by default.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220421151735.31996-42-richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2022-04-21 08:17:12 -07:00
parent e8d12542ee
commit 345b7a8757
7 changed files with 62 additions and 40 deletions
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4
target/nios2/helper.c
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@ -119,6 +119,9 @@ void nios2_cpu_do_interrupt(CPUState *cs)
case EXCP_UNALIGND:
name = "Misaligned (destination)";
break;
case EXCP_DIV:
name = "DIV error";
break;
case EXCP_TRAP:
name = "TRAP insn";
break;
@ -187,6 +190,7 @@ void nios2_cpu_do_interrupt(CPUState *cs)
case EXCP_SUPERI:
case EXCP_ILLEGAL:
case EXCP_DIV:
case EXCP_TRAP:
do_exception(cpu, cpu->exception_addr, 0, false);
break;