how to implement NOP and SWI instruction in GNU C language?

I use gcc compiler( download from KEIL ), and want to implement NOP and SWI instruction in my C program. anyone could tell me how? Thank you.
how to implement NOP and SWI instruction in GNU C language?

I use gcc compiler( download from KEIL ), and want to implement NOP and SWI instruction in my C program. anyone could tell me how? Thank you.
ISR not triggering after first implementation

Hi all, New to this forum in a posting perspective but it's been a great help in a lot of areas from the start of my 8051 classes this year and last year so for that thanks. Im coming near the end of...
ISR not triggering after first implementation

Hi all, New to this forum in a posting perspective but it's been a great help in a lot of areas from the start of my 8051 classes this year and last year so for that thanks. Im coming near the end of...
SWI

I am trying to execute the following SWI program. It doesnt execute the SWI function body. I have 0 errors and 0 warnings. Any help as to why? CODE: #include <LPC21xx.H> void __swi(8) Call1...