0.9.2.48:

[sbcl.git] / src / compiler / x86-64 / parms.lisp

diff --git a/src/compiler/x86-64/parms.lisp b/src/compiler/x86-64/parms.lisp
index ec06769..7d7e3df 100644 (file)
--- a/src/compiler/x86-64/parms.lisp
+++ b/src/compiler/x86-64/parms.lisp
@@ -41,7 +41,7 @@
 ;;;   These values were taken from the alpha code. The values for
 ;;;   bias and exponent min/max are not the same as shown in the 486 book.
 ;;;   They may be correct for how Python uses them.
-(def!constant single-float-bias 126)   ; Intel says 127.
+(def!constant single-float-bias 126)    ; Intel says 127.
 (defconstant-eqx single-float-exponent-byte    (byte 8 23) #'equalp)
 (defconstant-eqx single-float-significand-byte (byte 23 0) #'equalp)
 ;;; comment from CMU CL:
@@ -60,42 +60,30 @@
 (def!constant double-float-hidden-bit (ash 1 20))
 (def!constant double-float-trapping-nan-bit (ash 1 19))
 
-(def!constant long-float-bias 16382)
-(defconstant-eqx long-float-exponent-byte    (byte 15 0) #'equalp)
-(defconstant-eqx long-float-significand-byte (byte 31 0) #'equalp)
-(def!constant long-float-normal-exponent-min 1)
-(def!constant long-float-normal-exponent-max #x7FFE)
-(def!constant long-float-hidden-bit (ash 1 31))                ; actually not hidden
-(def!constant long-float-trapping-nan-bit (ash 1 30))
-
 (def!constant single-float-digits
   (+ (byte-size single-float-significand-byte) 1))
 
 (def!constant double-float-digits
   (+ (byte-size double-float-significand-byte) 32 1))
 
-(def!constant long-float-digits
-  (+ (byte-size long-float-significand-byte) 32 1))
-
-;;; pfw -- from i486 microprocessor programmer's reference manual
-(def!constant float-invalid-trap-bit      (ash 1 0))
+;;; from AMD64 Architecture manual
+(def!constant float-invalid-trap-bit       (ash 1 0))
 (def!constant float-denormal-trap-bit       (ash 1 1))
 (def!constant float-divide-by-zero-trap-bit (ash 1 2))
 (def!constant float-overflow-trap-bit       (ash 1 3))
 (def!constant float-underflow-trap-bit      (ash 1 4))
-(def!constant float-inexact-trap-bit      (ash 1 5))
+(def!constant float-inexact-trap-bit       (ash 1 5))
 
 (def!constant float-round-to-nearest  0)
 (def!constant float-round-to-negative 1)
 (def!constant float-round-to-positive 2)
 (def!constant float-round-to-zero     3)
 
-(defconstant-eqx float-rounding-mode     (byte 2 10) #'equalp)
-(defconstant-eqx float-sticky-bits       (byte 6 16) #'equalp)
-(defconstant-eqx float-traps-byte        (byte 6  0) #'equalp)
-(defconstant-eqx float-exceptions-byte   (byte 6 16) #'equalp)
-(defconstant-eqx float-precision-control (byte 2  8) #'equalp)
-(def!constant float-fast-bit 0) ; no fast mode on x86
+(defconstant-eqx float-rounding-mode     (byte 2 13) #'equalp)
+(defconstant-eqx float-sticky-bits       (byte 6  0) #'equalp)
+(defconstant-eqx float-traps-byte        (byte 6  7) #'equalp)
+(defconstant-eqx float-exceptions-byte   (byte 6  0) #'equalp)
+(def!constant float-fast-bit 0) ; no fast mode on x86-64
 \f
 ;;;; description of the target address space
 
@@ -180,13 +168,12 @@
     sb!kernel::memory-fault-error
     sb!di::handle-breakpoint
     fdefinition-object
-    #!+sb-thread sb!thread::handle-thread-exit
 
     ;; free pointers
-    ;; 
+    ;;
     ;; Note that these are FIXNUM word counts, not (as one might
     ;; expect) byte counts or SAPs. The reason seems to be that by
-    ;; representing them this way, we can avoid consing bignums. 
+    ;; representing them this way, we can avoid consing bignums.
     ;; -- WHN 2000-10-02
     *read-only-space-free-pointer*
     *static-space-free-pointer*
@@ -205,13 +192,15 @@
     *free-interrupt-context-index*
 
     *free-tls-index*
-    
+
     *allocation-pointer*
     *binding-stack-pointer*
     *binding-stack-start*
     *control-stack-start*
     *control-stack-end*
 
+    *need-to-collect-garbage*
+
     ;; the floating point constants
     *fp-constant-0d0*
     *fp-constant-1d0*