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[Qemu-devel] [PATCH v2 3/8] target-mips: generate a reserved instruction
From: |
Aurelien Jarno |
Subject: |
[Qemu-devel] [PATCH v2 3/8] target-mips: generate a reserved instruction exception on CPU without DSP |
Date: |
Wed, 9 Jan 2013 16:27:40 +0100 |
On CPU without DSP ASE support, a reserved instruction exception (instead of
a DSP ASE sate disabled) should be generated.
Signed-off-by: Aurelien Jarno <address@hidden>
---
target-mips/translate.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/target-mips/translate.c b/target-mips/translate.c
index 33d04fb..2c238ef 100644
--- a/target-mips/translate.c
+++ b/target-mips/translate.c
@@ -1394,14 +1394,22 @@ static inline void check_cp1_registers(DisasContext
*ctx, int regs)
static inline void check_dsp(DisasContext *ctx)
{
if (unlikely(!(ctx->hflags & MIPS_HFLAG_DSP))) {
- generate_exception(ctx, EXCP_DSPDIS);
+ if (ctx->insn_flags & ASE_DSP) {
+ generate_exception(ctx, EXCP_DSPDIS);
+ } else {
+ generate_exception(ctx, EXCP_RI);
+ }
}
}
static inline void check_dspr2(DisasContext *ctx)
{
if (unlikely(!(ctx->hflags & MIPS_HFLAG_DSPR2))) {
- generate_exception(ctx, EXCP_DSPDIS);
+ if (ctx->insn_flags & ASE_DSP) {
+ generate_exception(ctx, EXCP_DSPDIS);
+ } else {
+ generate_exception(ctx, EXCP_RI);
+ }
}
}
--
1.7.10.4
- [Qemu-devel] [PATCH v2 0/8] target-mips: DSP ASE fixes and cleanup, Aurelien Jarno, 2013/01/09
- [Qemu-devel] [PATCH v2 3/8] target-mips: generate a reserved instruction exception on CPU without DSP,
Aurelien Jarno <=
- [Qemu-devel] [PATCH v2 1/8] target-mips: fix DSP loads with rd = 0, Aurelien Jarno, 2013/01/09
- [Qemu-devel] [PATCH v2 4/8] target-mips: add unions to access DSP elements, Aurelien Jarno, 2013/01/09
- [Qemu-devel] [PATCH v2 7/8] target-mips: use DSP unions for reduction add instructions, Aurelien Jarno, 2013/01/09
- [Qemu-devel] [PATCH v2 8/8] target-mips: implement DSP (d)append sub-class with TCG, Aurelien Jarno, 2013/01/09
- [Qemu-devel] [PATCH v2 5/8] target-mips: use DSP unions for binary DSP operators, Aurelien Jarno, 2013/01/09