X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fx86-64%2Fparms.lisp;h=d03dc9bd6a9785adbb55935099ec37386f3b9bc8;hb=f3f677703e37f5a335b3be7fa64f7748ad969517;hp=702b3349a1eaa5fea41a3d20bb7be27859f63259;hpb=4ebdc81b1a9c6dbed6e98b112afc8dd32b17a2dd;p=sbcl.git diff --git a/src/compiler/x86-64/parms.lisp b/src/compiler/x86-64/parms.lisp index 702b334..d03dc9b 100644 --- a/src/compiler/x86-64/parms.lisp +++ b/src/compiler/x86-64/parms.lisp @@ -35,12 +35,6 @@ ;;; addressable object (def!constant n-byte-bits 8) -;;; the number of bits to shift between word addresses and byte addresses -(def!constant word-shift (1- (integer-length (/ n-word-bits n-byte-bits)))) - -;;; the number of bytes in a word -(def!constant n-word-bytes (/ n-word-bits n-byte-bits)) - (def!constant float-sign-shift 31) ;;; comment from CMU CL: @@ -66,24 +60,13 @@ (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 +;;; 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)) @@ -96,27 +79,29 @@ (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. untested (copied from x86, in fact) +;;; where to put the different spaces. +(def!constant read-only-space-start #x20000000) +(def!constant read-only-space-end #x27ff0000) -(def!constant read-only-space-start #x01000000) -(def!constant read-only-space-end #x037ff000) +(def!constant static-space-start #x40000000) +(def!constant static-space-end #x47fff000) -(def!constant static-space-start #x05000000) -(def!constant static-space-end #x07fff000) +(def!constant dynamic-space-start #x1000000000) +(def!constant dynamic-space-end #x11ffff0000) -(def!constant dynamic-space-start #x09000000) -(def!constant dynamic-space-end #x29000000) +(def!constant linkage-table-space-start #x60000000) +(def!constant linkage-table-space-end #x63fff000) +(def!constant linkage-table-entry-size 16) ;;;; other miscellaneous constants @@ -164,6 +149,9 @@ ;;; FIXME: !COLD-INIT probably doesn't need ;;; to be in the static symbols table any more. +;;; +;;; FIXME: some of these symbols are shared by all backends, +;;; and should be factored out into a common file. (defparameter *static-symbols* '(t @@ -175,6 +163,9 @@ 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!kernel::memory-fault-error sb!di::handle-breakpoint fdefinition-object #!+sb-thread sb!thread::handle-thread-exit @@ -209,19 +200,13 @@ *control-stack-start* *control-stack-end* + *need-to-collect-garbage* + ;; the floating point constants *fp-constant-0d0* *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* ;; The ..SLOT-UNBOUND.. symbol is static in order to optimise the ;; common slot unbound check. @@ -247,9 +232,3 @@ 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)