sttr.xml */
| 26183 | |
| 26184 | /* sttr.xml */ |
| 26185 | int STTR(context *ctx, Instruction *instr) |
| 26186 | { |
| 26187 | int rc = DECODE_STATUS_UNMATCHED; |
| 26188 | /* class iclass_base_plus_offset */ |
| 26189 | /* size=1x|111|V=0|00|opc=00|0|imm9=xxxxxxxxx|10|Rn=xxxxx|Rt=xxxxx */ |
| 26190 | if((INSWORD & 0xBFE00C00)==0xB8000800) { |
| 26191 | decode_fields32(ENC_STTR_32_LDST_UNPRIV, ctx, instr); |
| 26192 | ctx->wback = FALSE; |
| 26193 | ctx->postindex = FALSE; |
| 26194 | ctx->scale = UINT(ctx->size); |
| 26195 | ctx->offset = SignExtend(ctx->imm9,9); |
| 26196 | if(ctx->size==2) OK(ENC_STTR_32_LDST_UNPRIV); |
| 26197 | if(ctx->size==3) OK(ENC_STTR_64_LDST_UNPRIV); |
| 26198 | } |
| 26199 | /* post-decode pcode */ |
| 26200 | ctx->n = UINT(ctx->Rn); |
| 26201 | ctx->t = UINT(ctx->Rt); |
| 26202 | ctx->unpriv_at_el1 = ctx->pstate_el==EL1 && !(EL2Enabled() && HaveNVExt() && CONCAT(ctx->HCR_EL2_NV,ctx->HCR_EL2_NV1,1)==3); |
| 26203 | ctx->unpriv_at_el2 = ctx->pstate_el==EL2 && HaveVirtHostExt() && CONCAT(ctx->HCR_EL2_E2H,ctx->HCR_EL2_TGE,1)==3; |
| 26204 | ctx->user_access_override = HaveUAOExt() && ctx->pstate_uao==1; |
| 26205 | if(!ctx->user_access_override && (ctx->unpriv_at_el1 || ctx->unpriv_at_el2)) { |
| 26206 | ctx->acctype = ctx->AccType_UNPRIV; |
| 26207 | } |
| 26208 | else { |
| 26209 | ctx->acctype = ctx->AccType_NORMAL; |
| 26210 | } |
| 26211 | if(SLICE(ctx->opc,1,1)==0) { |
| 26212 | if(SLICE(ctx->opc,0,0)==1) { |
| 26213 | ctx->memop = MemOp_LOAD; |
| 26214 | }; |
| 26215 | if(ctx->size==3) { |
| 26216 | ctx->regsize = 0x40; |
| 26217 | }; |
| 26218 | ctx->signed_ = FALSE; |
| 26219 | } |
| 26220 | else { |
| 26221 | if(ctx->size==3) { |
| 26222 | UNDEFINED; |
| 26223 | } |
| 26224 | else { |
| 26225 | ctx->memop = MemOp_LOAD; |
| 26226 | if(ctx->size==2 && SLICE(ctx->opc,0,0)==1) { |
| 26227 | UNDEFINED; |
| 26228 | } |
| 26229 | if(SLICE(ctx->opc,0,0)==1) { |
| 26230 | ctx->regsize = 0x20; |
| 26231 | }; |
| 26232 | ctx->signed_ = TRUE; |
| 26233 | } |
| 26234 | } |
| 26235 | ctx->datasize = (8) << (ctx->scale); |
| 26236 | ctx->tag_checked = ctx->memop!=MemOp_PREFETCH && (ctx->wback || ctx->n!=0x1f); |
| 26237 | ctx->wb_unknown = FALSE; |
| 26238 | ctx->rt_unknown = FALSE; |
| 26239 | if(ctx->memop==MemOp_LOAD && ctx->wback && ctx->n==ctx->t && ctx->n!=0x1f) { |
| 26240 | // assignment from ConstrainUnpredictable() |
| 26241 | // assert |
| 26242 | // switch on constraint |
no test coverage detected