X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fx86%2Fparms.lisp;h=346b892fce1d21c8a645f511b01ff493864dbf8d;hb=d319b944d934f3efbb01a2a345c46bafd40857d0;hp=f12d2930b965f531a05ebb39a94444c14389d507;hpb=079ef9dad558ca07cb8178ef428bf738112174fa;p=sbcl.git diff --git a/src/compiler/x86/parms.lisp b/src/compiler/x86/parms.lisp index f12d293..346b892 100644 --- a/src/compiler/x86/parms.lisp +++ b/src/compiler/x86/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: @@ -65,7 +65,7 @@ (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-hidden-bit (ash 1 31)) ; actually not hidden (def!constant long-float-trapping-nan-bit (ash 1 30)) (def!constant single-float-digits @@ -78,12 +78,12 @@ (+ (byte-size long-float-significand-byte) n-word-bits 1)) ;;; pfw -- from i486 microprocessor programmer's reference manual -(def!constant float-invalid-trap-bit (ash 1 0)) +(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) @@ -271,15 +271,15 @@ 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 ;; 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* @@ -298,13 +298,15 @@ *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*