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The Arm Cortex ist a risc-machine (risc: reduced instruction-set cpu) and as an extra it is a three-address-cpu. The latter means, you may have instructions like "Add register1 and register5 and put thre result into register3" making programming in assembly not even easier.
First of all, it is good practice to open a new topic when a thread has been dead for several months.
Assembler has not so much to do with PSoC 5 but with the core used. The core is a Cortex-M3 from ARM. You need to consult the ARM.com website for the instruction set manual.
PSoC 1 is different because the core M8C is a Cypress product too, that's why Cypress also provides ASM documents for the PSoC 1.
In general I highly discourage you to use ASM for PSoC 5, especially if Pepe post that he wants the forum to show him how to use ASM. For Assembler experts, PSoC 5 would be a real challenge, for ASM newbies....... not going to happen.