-;;;
+;;;; miscellaneous VM definition noise for the PPC
+
+;;;; This software is part of the SBCL system. See the README file for
+;;;; more information.
+;;;;
+;;;; This software is derived from the CMU CL system, which was
+;;;; written at Carnegie Mellon University and released into the
+;;;; public domain. The software is in the public domain and is
+;;;; provided with absolutely no warranty. See the COPYING and CREDITS
+;;;; files for more information.
+
(in-package "SB!VM")
+;;; NUMBER-STACK-DISPLACEMENT
+;;;
+;;; The number of bytes reserved above the number stack pointer. These
+;;; slots are required by architecture, mostly (?) to make C backtrace
+;;; work. This must be a power of 2 - see BYTES-REQUIRED-FOR-NUMBER-STACK.
+;;;
+(def!constant number-stack-displacement
+ (* #!-darwin 2
+ #!+darwin 8
+ n-word-bytes))
\f
;;;; Define the registers
((null classes)
(nreverse forms))))
-;; XXX this is most likely wrong. Check with Eric Marsden next time you
-;; see him
-(def!constant sb!vm::kludge-nondeterministic-catch-block-size 7)
+(def!constant kludge-nondeterministic-catch-block-size 7)
(define-storage-classes
;; The non-descriptor stacks.
(signed-stack non-descriptor-stack) ; (signed-byte 32)
(unsigned-stack non-descriptor-stack) ; (unsigned-byte 32)
- (base-char-stack non-descriptor-stack) ; non-descriptor characters.
+ (character-stack non-descriptor-stack) ; non-descriptor characters.
(sap-stack non-descriptor-stack) ; System area pointers.
(single-stack non-descriptor-stack) ; single-floats
(double-stack non-descriptor-stack
:alternate-scs (control-stack))
;; Non-Descriptor characters
- (base-char-reg registers
+ (character-reg registers
:locations #.non-descriptor-regs
:constant-scs (immediate)
:save-p t
- :alternate-scs (base-char-stack))
+ :alternate-scs (character-stack))
;; Non-Descriptor SAP's (arbitrary pointers into address space)
(sap-reg registers
;; A catch or unwind block.
(catch-block control-stack
- :element-size sb!vm::kludge-nondeterministic-catch-block-size))
-
-
+ :element-size kludge-nondeterministic-catch-block-size))
\f
;;;; Make some random tns for important registers.