Hello, I have probably found a bug in GAS assembler/disassembler. It looks like the following instructions are just inverted:
Every Intel like assembler/disassembler I have already tested, encodes it like this: DC F9 fdiv st(1),st DC F1 fdivr st(1),st This is expected behaviour taking into account Intel manual. In case of GAS: 0xdc, 0xf9 fdivr %st,%st(1) 0xdc, 0xf1 fdiv %st,%st(1) Instructions are inverted. As you can see, fdivr instruction has been used in the place where Intel used fdiv. This problem exists only for this specific addressing mode: DC F8+i FDIV ST(i), ST(0) DC F0+i FDIVR ST(i), ST(0) Regards, Sławomir Wojtasiak slawomir *DOT* wojtasiak *AT* swksoftware *DOT* pl _______________________________________________ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
