manpagez: man pages & more
info guile
Home | html | info | man
[ << ] [ < ] [ Up ] [ > ] [ >> ]         [Top] [Contents] [Index] [ ? ] Miscellaneous Instructions

Instruction: nop

Does nothing! Used for padding other instructions to certain alignments.

Instruction: halt

Exits the VM, returning a SCM value. Normally, this instruction is only part of the “bootstrap program”, a program run when a virtual machine is first entered; compiled Scheme procedures will not contain this instruction.

If multiple values have been returned, the SCM value will be a multiple-values object (see section Returning and Accepting Multiple Values).

Instruction: break

Does nothing, but invokes the break hook.

Instruction: drop

Pops off the top value from the stack, throwing it away.

Instruction: dup

Re-pushes the top value onto the stack.

Instruction: void

Pushes “the unspecified value” onto the stack.

This document was generated on April 20, 2013 using texi2html 5.0.

© 2000-2019
Individual documents may contain additional copyright information.