ooops,
why do you need to load registers while use a C-language? Are you sure that next C-instructions, for example, a=5; b=c; do not modify these registers? You must know that C-compiler uses any registers as it needs. And you never be sure about their content while program executes. So: either use C-language or ASM. If you need both then better: create separate .asm file, compile it with assembly and link its object file to the project. And do not try to insert asm-instructions inside C-program, truth me (=

Regards,
Oleg