Solaris 64-bit Developer's Guide

Stack Bias

SPARCV9. An important feature of the SPARC V9 ABI for developers is the stack bias. For 64-bit SPARC programs, a stack bias of 2047 bytes must be added to both the frame pointer and the stack pointer to get to the actual data of the stack frame. See the following figure.

Diagram showing the addition of 2047 bytes of stack bias for
a 64-bit SPARC program

For more information on stack bias, please see the SPARC V9 ABI.