< SPARC Assembly

This page is going to discuss the use of subroutines in SPARC Assembly.

Saving Registers

Subroutine Linkage

A typical (non-leaf) subroutine has a procedure prologue and epilogue something like this:[1][2]

do_something_useful:
    ; prologue:
    save %sp, -16, %sp

    ; main body
    ; ... perform function ...

    ; leave return value, if any, in register %i0

    ; epilogue:
    ret
    restore

Return Values


Further reading

  1. ↑ Peter Magnusson. "Understanding stacks and registers in the Sparc architecture(s)".
  2. ↑ Mark Smotherman. "SPARC Subroutines".
This article is issued from Wikibooks. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.