[Qemu-devel] [PATCH] Add special MIPS multiply instructions

2006-07-21 Thread Dirk Behme
This is an update of MIPS NEC VR5400 special instruction patch [1]. It is necessary because of MIPS instruction set configuration patch. Therefore this patch has to be applied on top of http://lists.gnu.org/archive/html/qemu-devel/2006-07/msg00158.html Best regards Dirk [1] http://lists.gnu.o

[Qemu-devel] [PATCH] Add special MIPS multiply instructions

2006-04-21 Thread Dirk Behme
Hi, while playing with different -march options of MIPS GCC, I found that GCC generates some special R5400 three register multiply assembly commands if used with -march=vr5400 (MULS, MULHI, MACC etc.). These commands use 11 bit extended opcodes where the lowest 6 bits are the same as for the sta