7e3e7c8253
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64 lines
2.4 KiB
Diff
64 lines
2.4 KiB
Diff
diff --git a/VEX/priv/guest_ppc_toIR.c b/VEX/priv/guest_ppc_toIR.c
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index c9c058a7a..d726d63de 100644
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--- a/VEX/priv/guest_ppc_toIR.c
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+++ b/VEX/priv/guest_ppc_toIR.c
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@@ -25671,49 +25671,29 @@ dis_vx_store ( UInt prefix, UInt theInstr )
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case 0x38D: // stxsibx
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{
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- IRExpr *stored_word;
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- IRTemp byte_to_store = newTemp( Ity_I64 );
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+ IRTemp byte_to_store = newTemp( Ity_I8 );
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DIP("stxsibx %u,r%u,r%u\n", (UInt)XS, rA_addr, rB_addr);
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- /* Can't store just a byte, need to fetch the word at EA merge data
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- * and store.
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- */
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- stored_word = load( Ity_I64, mkexpr( EA ) );
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- assign( byte_to_store, binop( Iop_And64,
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+ assign( byte_to_store, unop( Iop_64to8,
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unop( Iop_V128HIto64,
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- mkexpr( vS ) ),
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- mkU64( 0xFF ) ) );
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+ mkexpr( vS ) ) ) );
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- store( mkexpr( EA ), binop( Iop_Or64,
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- binop( Iop_And64,
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- stored_word,
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- mkU64( 0xFFFFFFFFFFFFFF00 ) ),
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- mkexpr( byte_to_store ) ) );
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+ store( mkexpr( EA ), mkexpr( byte_to_store ) );
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break;
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}
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case 0x3AD: // stxsihx
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{
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- IRExpr *stored_word;
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- IRTemp byte_to_store = newTemp( Ity_I64 );
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+ IRTemp hword_to_store = newTemp( Ity_I16 );
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DIP("stxsihx %u,r%u,r%u\n", (UInt)XS, rA_addr, rB_addr);
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- /* Can't store just a halfword, need to fetch the word at EA merge data
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- * and store.
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- */
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- stored_word = load( Ity_I64, mkexpr( EA ) );
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- assign( byte_to_store, binop( Iop_And64,
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- unop( Iop_V128HIto64,
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- mkexpr( vS ) ),
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- mkU64( 0xFFFF ) ) );
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+ assign( hword_to_store, unop( Iop_64to16,
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+ unop( Iop_V128HIto64,
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+ mkexpr( vS ) ) ) );
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- store( mkexpr( EA ), binop( Iop_Or64,
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- binop( Iop_And64,
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- stored_word,
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- mkU64( 0xFFFFFFFFFFFF0000 ) ),
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- mkexpr( byte_to_store ) ) );
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+ store( mkexpr( EA ), mkexpr( hword_to_store ) );
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break;
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}
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