Where can I find the device-specific JTAG instructions for Cortex-M3?

I'm trying to communicate with a Cortex-M3 based microcontroller (LPC1769) through JTAG. I already have the hardware required, and have managed to get an example program to work, but to progress further...
Where can I find the device-specific JTAG instructions for Cortex-M3?

I'm trying to communicate with a Cortex-M3 based microcontroller (LPC1769) through JTAG. I already have the hardware required, and have managed to get an example program to work, but to progress further...
Where can we find the opcode for ARMv8 instructions?

Note: This was originally posted on 24th August 2012 at http://forums.arm.com I had download the toolchain for ARMv8( http://gcc.gnu.org/ml/gcc-patches/2012-05/msg01694.html ),and I want find the encoding...
Where can we find the opcode for ARMv8 instructions?

Note: This was originally posted on 24th August 2012 at http://forums.arm.com I had download the toolchain for ARMv8( http://gcc.gnu.org/ml/gcc-patches/2012-05/msg01694.html ),and I want find the encoding...
how to know the specific cycles of every arm instruction (armV7,cortex-a8) while executing in asm file?

how to know the specific cycles of every arm instruction (armV7,cortex-a8) while executing in asm form? if there are some documents which describes it in detail? In Chinese: 我目前用cortex-A8（armV7）来开发项目...