X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fx86-64%2Fparms.lisp;h=06f0420b06b57cde428e76032e25888cf78e0890;hb=2fb5b174f6acb88a85c86aa4cd753ddefaccc987;hp=de4af8aef872a22f2695c5af96e0384c1fcca6f1;hpb=1f23c9f7828d8aebeda92c8c1126114e10461ffa;p=sbcl.git

diff --git a/src/compiler/x86-64/parms.lisp b/src/compiler/x86-64/parms.lisp
index de4af8a..06f0420 100644
--- a/src/compiler/x86-64/parms.lisp
+++ b/src/compiler/x86-64/parms.lisp
@@ -35,13 +35,17 @@
 ;;; addressable object
 (def!constant n-byte-bits 8)
 
+;;; The size in bytes of the GENCGC pages. Should be a multiple of the
+;;; architecture code size.
+(def!constant gencgc-page-size 4096)
+
 (def!constant float-sign-shift 31)
 
 ;;; comment from CMU CL:
 ;;;   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:
@@ -60,47 +64,43 @@
 (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
 
 ;;;; description of the target address space
 
 ;;; where to put the different spaces.
 
+;;; Currently the read-only and static spaces must be located in low
+;;; memory (certainly under the 4GB limit, very probably under 2GB
+;;; limit). This is due to the inability of using immediate values of
+;;; more than 32 bits (31 bits if you take sign extension into
+;;; account) in any other instructions except MOV. Removing this limit
+;;; would be possible, but probably not worth the time and code bloat
+;;; it would cause. -- JES, 2005-12-11
+
 (def!constant read-only-space-start     #x20000000)
 (def!constant read-only-space-end       #x27ff0000)
 
@@ -180,13 +180,12 @@
     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*
@@ -203,9 +202,14 @@
     sb!unix::*interrupts-enabled*
     sb!unix::*interrupt-pending*
     *free-interrupt-context-index*
+    *gc-inhibit*
+    #!+sb-thread *stop-for-gc-pending*
+    *gc-pending*
+    #!+sb-thread sb!thread::run-interruption
 
     *free-tls-index*
-    
+    *tls-index-lock*
+
     *allocation-pointer*
     *binding-stack-pointer*
     *binding-stack-start*
@@ -217,14 +221,9 @@
     *fp-constant-1d0*
     *fp-constant-0f0*
     *fp-constant-1f0*
-    ;; The following are all long-floats.
-    *fp-constant-0l0*
-    *fp-constant-1l0*
-    *fp-constant-pi*
-    *fp-constant-l2t*
-    *fp-constant-l2e*
-    *fp-constant-lg2*
-    *fp-constant-ln2*
+
+    ;; For GC-AND-SAVE
+    *restart-lisp-function*
 
     ;; The ..SLOT-UNBOUND.. symbol is static in order to optimise the
     ;; common slot unbound check.
@@ -250,9 +249,3 @@
     sb!kernel:two-arg-xor
     sb!kernel:two-arg-gcd
     sb!kernel:two-arg-lcm))
-
-;;;; stuff added by jrd
-
-;;; FIXME: Is this used? Delete it or document it.
-;;; cf the sparc PARMS.LISP
-(defparameter *assembly-unit-length* 8)