X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fppc%2Fparms.lisp;h=26d2e325ba0452d47d8c800aec3fe7faf86d98ce;hb=942e45e3bb73fd55786e4a0ab4590324063c0c89;hp=9d0a4a19ec3ec1e66a0dfcf06ad0adad02b23835;hpb=8731c1a7c1a585d190151fa881050fb5e14c0616;p=sbcl.git diff --git a/src/compiler/ppc/parms.lisp b/src/compiler/ppc/parms.lisp index 9d0a4a1..26d2e32 100644 --- a/src/compiler/ppc/parms.lisp +++ b/src/compiler/ppc/parms.lisp @@ -1,21 +1,28 @@ ;;;; This file contains some parameterizations of various VM -;;;; attributes for the PPC. This file is separate from other stuff so -;;;; that it can be compiled and loaded earlier. - +;;;; attributes for the PPC. This file is separate from other stuff so +;;;; that it can be compiled and loaded earlier. + +;;;; 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") -(def!constant n-word-bits 32 - "Number of bits per word where a word holds one lisp descriptor.") - -(def!constant n-byte-bits 8 - "Number of bits per byte where a byte is the smallest addressable object.") +;;; number of bits per word where a word holds one lisp descriptor +(def!constant n-word-bits 32) -(def!constant word-shift (1- (integer-length (/ n-word-bits n-byte-bits))) - "Number of bits to shift between word addresses and byte addresses.") +;;; the natural width of a machine word (as seen in e.g. register width, +;;; address space) +(def!constant n-machine-word-bits 32) -(def!constant n-word-bytes (/ n-word-bits n-byte-bits) - "Number of bytes in a word.") +;;; number of bits per byte where a byte is the smallest addressable +;;; object +(def!constant n-byte-bits 8) (def!constant float-sign-shift 31) @@ -54,57 +61,59 @@ (def!constant float-round-to-positive 2) (def!constant float-round-to-negative 3) -(defconstant-eqx float-rounding-mode (byte 2 0) #'equalp) ; RD -(defconstant-eqx float-sticky-bits (byte 10 19) #'equalp) -(defconstant-eqx float-traps-byte (byte 6 3) #'equalp) -(defconstant-eqx float-exceptions-byte (byte 5 0) #'equalp) ; cexc - -(def!constant float-fast-bit 2) ; Non-IEEE mode - - -;;; NUMBER-STACK-DISPLACEMENT +(defconstant-eqx float-rounding-mode (byte 2 0) #'equalp) ; RD +;;; FIXME I: Beware, all ye who trespass here. Despite its name, +;;; FLOAT-STICKY-BITS is not the byte specifier for sticky bits in the +;;; floating point control word. It is more like "accrued exceptions" +;;; where FLOAT-EXCEPTIONS-BYTE is "current exceptions". Consequently, +;;; on architectures where there is no "current exceptions" +;;; FLOAT-EXCEPTIONS-BYTE and FLOAT-STICKY-BITS had better be the +;;; same. ;;; -;;; The number of bytes reserved above the number stack pointer. These -;;; slots are required by architecture, mostly (?) to make C backtrace -;;; work. -;;; -(def!constant number-stack-displacement - (* 2 sb!vm:n-word-bytes)) - - +;;; FIXME II: So, I've now documented this in comments in the PowerPC +;;; tree. This may not make it easy to find for when new architectures +;;; get backends written... +;;; +;;; CSR, 2002-06-11 +(defconstant-eqx float-sticky-bits (byte 5 25) #'equalp) +(defconstant-eqx float-traps-byte (byte 5 3) #'equalp) +(defconstant-eqx float-exceptions-byte (byte 5 25) #'equalp) ; cexc +(def!constant float-fast-bit 2) ; Non-IEEE mode + ;;; Where to put the different spaces. -;;; (def!constant read-only-space-start #x01000000) (def!constant read-only-space-end #x04ff8000) -(def!constant binding-stack-start #x06000000) -(def!constant binding-stack-end #x06ff0000) - -(def!constant control-stack-start #x07000000) -(def!constant control-stack-end #x07ff0000) - (def!constant static-space-start #x08000000) (def!constant static-space-end #x097fff00) -;;; FIXME: this is a gross violation of OAOO, done purely to support -;;; the #define of DYNAMIC_SPACE_SIZE in validate.c -- CSR, 2002-02-25 -;;; (these numbers should match dynamic-0-*) -(def!constant dynamic-space-start #x40000000) -(def!constant dynamic-space-end #x47fff000) - -;;; nothing _seems_ to be using these addresses -(def!constant dynamic-0-space-start #x40000000) -(def!constant dynamic-0-space-end #x47fff000) -(def!constant dynamic-1-space-start #x48000000) -(def!constant dynamic-1-space-end #x4ffff000) - - - +#!+linux +(progn + (def!constant dynamic-0-space-start #x50000000) + (def!constant dynamic-0-space-end #x67fff000) + (def!constant dynamic-1-space-start #x68000000) + (def!constant dynamic-1-space-end #x7ffff000) + + (def!constant linkage-table-space-start #x0a000000) + (def!constant linkage-table-space-end #x0b000000) + (def!constant linkage-table-entry-size 16)) + +#!+darwin +(progn + ;;; nothing _seems_ to be using these addresses + (def!constant dynamic-0-space-start #x10000000) + (def!constant dynamic-0-space-end #x3ffff000) + (def!constant dynamic-1-space-start #x40000000) + (def!constant dynamic-1-space-end #x6ffff000) + + (def!constant linkage-table-space-start #x0a000000) + (def!constant linkage-table-space-end #x0b000000) + (def!constant linkage-table-entry-size 16)) -;;;; Other random constants. +;;;; Other miscellaneous constants. (defenum (:suffix -trap :start 8) halt @@ -143,32 +152,35 @@ ;; The C startup code must fill these in. *posix-argv* - sb!impl::*initial-fdefn-objects* - ;; Functions that the C code needs to call - ;; sb!impl::%initial-fun - sb!impl::maybe-gc + ;; functions that the C code needs to call + 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. + ;; free pointers *read-only-space-free-pointer* *static-space-free-pointer* *initial-dynamic-space-free-pointer* - ;; Things needed for non-local-exit. + ;; things needed for non-local exit *current-catch-block* *current-unwind-protect-block* - *eval-stack-top* - ;; Interrupt Handling + *binding-stack-start* + *control-stack-start* + *control-stack-end* + + ;; interrupt handling *free-interrupt-context-index* sb!unix::*interrupts-enabled* sb!unix::*interrupt-pending* - - #|sb!kernel::*current-thread*|# - )) + *gc-inhibit* + *gc-pending*)) (defparameter *static-funs* '(length @@ -180,13 +192,14 @@ sb!kernel:two-arg-> sb!kernel:two-arg-= sb!kernel:two-arg-<= - sb!kernel:two-arg->= + sb!kernel:two-arg->= sb!kernel:two-arg-/= eql sb!kernel:%negate sb!kernel:two-arg-and sb!kernel:two-arg-ior sb!kernel:two-arg-xor + sb!kernel:two-arg-eqv sb!kernel:two-arg-gcd sb!kernel:two-arg-lcm))