Microoptimise TN-LEXICAL-DEPTH

[sbcl.git] / src / compiler / mips / parms.lisp

diff --git a/src/compiler/mips/parms.lisp b/src/compiler/mips/parms.lisp
index f6fe72e..703d887 100644 (file)
--- a/src/compiler/mips/parms.lisp
+++ b/src/compiler/mips/parms.lisp
@@ -1,4 +1,16 @@
+;;;; 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")
+\f
+;;;; Machine Architecture parameters:
+(eval-when (:compile-toplevel :load-toplevel :execute)
 
 ;;; number of bits per word where a word holds one lisp descriptor
 (def!constant n-word-bits 32)
@@ -11,7 +23,6 @@
 ;;; object
 (def!constant n-byte-bits 8)
 
-
 (def!constant float-sign-shift 31)
 
 (def!constant single-float-bias 126)
@@ -41,6 +52,7 @@
 (def!constant float-overflow-trap-bit (ash 1 2))
 (def!constant float-divide-by-zero-trap-bit (ash 1 3))
 (def!constant float-invalid-trap-bit (ash 1 4))
+(def!constant float-unimplemented-trap-bit (ash 1 5))
 
 (def!constant float-round-to-nearest 0)
 (def!constant float-round-to-zero 1)
@@ -50,11 +62,10 @@
 (defconstant-eqx float-rounding-mode (byte 2 0) #'equalp)
 (defconstant-eqx float-sticky-bits (byte 5 2) #'equalp)
 (defconstant-eqx float-traps-byte (byte 5 7) #'equalp)
-(defconstant-eqx float-exceptions-byte (byte 5 12) #'equalp)
+(defconstant-eqx float-exceptions-byte (byte 6 12) #'equalp)
 (defconstant-eqx float-condition-bit (ash 1 23) #'equalp)
-(def!constant float-fast-bit 0)                   ; No fast mode on PMAX.
+(def!constant float-fast-bit (ash 1 24))
 
-\f
 ;;;; Description of the target address space.
 
 #!+irix
@@ -79,41 +90,47 @@
   ;;
   ;; C runtime executable segment starts at 0x00400000
   (def!constant read-only-space-start #x01000000)
-  (def!constant read-only-space-end   #x08000000)
+  (def!constant read-only-space-end   #x07ff0000)
 
   (def!constant static-space-start    #x08000000)
-  (def!constant static-space-end      #x10000000)
+  (def!constant static-space-end      #x0fff0000)
   ;; C runtime read/write segment starts at 0x10000000, heap and DSOs
   ;; start at 0x2a000000
   (def!constant dynamic-0-space-start #x30000000)
-  (def!constant dynamic-0-space-end   #x50000000)
+  (def!constant dynamic-0-space-end   #x4fff0000)
   (def!constant dynamic-1-space-start #x50000000)
-  (def!constant dynamic-1-space-end   #x70000000)
+  (def!constant dynamic-1-space-end   #x6fff0000)
+
+  (def!constant linkage-table-space-start #x70000000)
+  (def!constant linkage-table-space-end   #x71000000)
+  (def!constant linkage-table-entry-size 16)
+
   ;; C stack grows downward from 0x80000000
   )
 
+); eval-when
 
 \f
 ;;;; Other non-type constants.
 
-(defenum (:suffix -flag)
-  atomic
-  interrupted)
-
-(defenum (:suffix -trap :start 8)
-  halt
-  pending-interrupt
-  error
-  cerror
-  breakpoint
-  fun-end-breakpoint
-  after-breakpoint)
-
-(defenum (:prefix trace-table-)
-  normal
-  call-site
-  fun-prologue
-  fun-epilogue)
+(defenum ()
+  atomic-flag
+  interrupted-flag)
+
+(defenum (:start 8)
+  halt-trap
+  pending-interrupt-trap
+  error-trap
+  cerror-trap
+  breakpoint-trap
+  fun-end-breakpoint-trap
+  after-breakpoint-trap
+  unused-trap
+  pseudo-atomic-trap
+  object-not-list-trap
+  object-not-instance-trap
+  single-step-around-trap
+  single-step-before-trap)
 \f
 ;;;; Static symbols.
 
@@ -124,39 +141,11 @@
 ;;; The fdefn objects for the static functions are loaded into static
 ;;; space directly after the static symbols.  That way, the raw-addr
 ;;; can be loaded directly out of them by indirecting relative to NIL.
-;;;
 (defparameter *static-symbols*
-  '(t
-
-    *posix-argv*
-
-    sb!impl::sub-gc
-    sb!kernel::internal-error
-    sb!kernel::control-stack-exhausted-error
-    sb!kernel::undefined-alien-variable-error
-    sb!kernel::undefined-alien-function-error
-    sb!di::handle-breakpoint
-    sb!impl::fdefinition-object
-
-    ;; Free Pointers
-    *read-only-space-free-pointer*
-    *static-space-free-pointer*
-    *initial-dynamic-space-free-pointer*
-
-    ;; Things needed for non-local-exit.
-    *current-catch-block*
-    *current-unwind-protect-block*
-
-    *binding-stack-start*
-    *control-stack-start*
-    *control-stack-end*
-
-    ;; Interrupt Handling
-    *free-interrupt-context-index*
-    sb!unix::*interrupts-enabled*
-    sb!unix::*interrupt-pending*
-    *gc-inhibit*
-    *gc-pending*))
+  (append
+   *common-static-symbols*
+   *c-callable-static-symbols*
+   '()))
 
 (defparameter *static-funs*
   '(sb!kernel:two-arg-+