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6cd0c5d775
All instructions which may change hflags terminate tb. However, this doesn't work if such an instruction is placed in delay or forbidden slot. gen_branch() clears MIPS_HFLAG_BMASK in ctx->hflags and then generates code to overwrite hflags with ctx->hflags, consequently we loose any execution-time hflags modifications. For example, in the following scenario hflag related to Status.CU1 will not be updated: /* Set Status.CU1 in delay slot */ mfc0 $24, $12, 0 lui $25, 0x2000 or $25, $25, $24 b check_Status_CU1 mtc0 $25, $12, 0 With this change we clear MIPS_HFLAG_BMASK in execution-time hflags if instruction in delay or forbidden slot wants to terminate tb for some reason (i.e. ctx->bstate != BS_NONE). Also, die early and loudly if "unknown branch" is encountered as this should never happen. Backports commit a5f533909e746ca6e534b232fb42c9c6fd81b468 from qemu |
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| .. | ||
| cpu-qom.h | ||
| cpu.c | ||
| cpu.h | ||
| dsp_helper.c | ||
| helper.c | ||
| helper.h | ||
| lmi_helper.c | ||
| Makefile.objs | ||
| mips-defs.h | ||
| msa_helper.c | ||
| op_helper.c | ||
| TODO | ||
| translate.c | ||
| translate_init.c | ||
| unicorn.c | ||
| unicorn.h | ||