[Git][cmucl/cmucl][sparc64-dev] Add stack-bias constant

[Raymond Toy]

Raymond Toy pushed to branch sparc64-dev at cmucl / cmucl


Commits:
fc265b2a by Raymond Toy at 2017-01-02T14:55:58-08:00
Add stack-bias constant

- - - - -


1 changed file:

- src/compiler/sparc64/parms.lisp


Changes:

=====================================
src/compiler/sparc64/parms.lisp
=====================================
--- a/src/compiler/sparc64/parms.lisp
+++ b/src/compiler/sparc64/parms.lisp
@@ -204,6 +204,14 @@
 (defconstant number-stack-displacement
   (* 16 vm:word-bytes))
 
+;;; STACK-BIAS
+;;;
+;;; The bias on the stack pointer (%sp) to get to the real top of
+;;; stack.  64-bit applications have a bias on the stack (apparently
+;;; to let the kernel easily tell if the application is a 32-bit or
+;;; 64-bit app).
+(defconstant stack-bias 2047)
+
 

 ;;;; Description of the target address space.
 



View it on GitLab: https://gitlab.common-lisp.net/cmucl/cmucl/commit/fc265b2a399cd15ecb0fe96d42cc7deceb58896b
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