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| -rw-r--r-- | src/mesa/glapi/glsparcasm.py | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/src/mesa/glapi/glsparcasm.py b/src/mesa/glapi/glsparcasm.py new file mode 100644 index 00000000000..3d01e81fb3f --- /dev/null +++ b/src/mesa/glapi/glsparcasm.py @@ -0,0 +1,152 @@ +#!/usr/bin/env python + +# $Id: glsparcasm.py,v 1.1 2001/06/05 04:30:03 davem69 Exp $ + +# Mesa 3-D graphics library +# Version: 3.5 +# +# Copyright (C) 1999-2000 Brian Paul All Rights Reserved. +# +# Permission is hereby granted, free of charge, to any person obtaining a +# copy of this software and associated documentation files (the "Software"), +# to deal in the Software without restriction, including without limitation +# the rights to use, copy, modify, merge, publish, distribute, sublicense, +# and/or sell copies of the Software, and to permit persons to whom the +# Software is furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included +# in all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL +# BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + + +# Generate the glapi_sparc.S assembly language file. +# +# Usage: +# glsparcasm.py >glapi_sparc.S +# +# Dependencies: +# The gl.spec file from the SI must be in the current directory. +# +# Brian Paul 11 May 2000 +# David S. Miller 4 Jun 2001 + +import string +import re + + +def PrintHead(): + print '/* DO NOT EDIT - This file generated automatically with glsparcasm.py script */' + print '#include "glapioffsets.h"' + print '' + print '#define GL_PREFIX(n) gl##n' + print '#define GLOBL_FN(x) .globl x ; .type x,@function' + print '' + print '/* The _glapi_Dispatch symbol addresses get relocated into the' + print ' * sethi/or instruction sequences below at library init time.' + print ' */' + print '' + print '.text' + print '.align 64' + print '' + return +#endif + +def PrintTail(): + print '\t nop' + print '' +#endif + + +def GenerateDispatchCode(name, offset): + print '' + print "GLOBL_FN(GL_PREFIX(%s))" % (name) + print "GL_PREFIX(%s):" % (name) + print '#ifdef __sparc_v9__' + print '\tsethi\t%hi(0x00000000), %g2' + print '\tsethi\t%hi(0x00000000), %g1' + print '\tor\t%g2, %lo(0x00000000), %g2' + print '\tor\t%g1, %lo(0x00000000), %g1' + print '\tsllx\t%g2, 32, %g2' + print '\tor\t%g1, %g2, %g1' + print "\tsethi\t%%hi(8 * _gloffset_%s), %%g2" % (offset) + print "\tor\t%%g2, %%lo(8 * _gloffset_%s), %%g2" % (offset) + print '\tldx\t[%g1 + %g2], %g3' + print '#else' + print '\tsethi\t%hi(0x00000000), %g1' + print '\tor\t%g1, %lo(0x00000000), %g1' + print "\tld\t[%%g1 + (4 * _gloffset_%s)], %%g3" % (offset) + print '#endif' + print '\tjmpl\t%g3, %g0' +#enddef + + +def FindAlias(list, funcName): + for i in range(0, len(list)): + entry = list[i] + if entry[0] == funcName: + return entry[1] + #endif + #endfor + return '' +#enddef + + + +def PrintDefines(): + functionPattern = re.compile('^[a-zA-Z0-9]+\(') + functionNamePattern = re.compile('^[a-zA-Z0-9]+') + + funcName = '' + functions = [ ] + + f = open('gl.spec') + for line in f.readlines(): + + m = functionPattern.match(line) + if m: + # extract funcName + n = functionNamePattern.findall(line) + funcName = n[0] + + m = string.split(line) + if len(m) > 1: + if m[0] == 'param': + paramName = m[1] + if m[0] == 'offset': + if m[1] == '?': + #print 'WARNING skipping', funcName + noop = 0 + else: + entry = [ funcName, funcName ] + functions.append(entry) + #endif + elif m[0] == 'alias': + aliasedName = FindAlias(functions, m[1]) + if aliasedName: + entry = [ funcName, aliasedName ] + functions.append(entry) + else: + print 'WARNING: alias to unknown function:', aliasedName + #endif + #endif + #endif + #endfor + + # Now generate the assembly dispatch code + for i in range(0, len(functions)): + entry = functions[i] + GenerateDispatchCode( entry[0], entry[1] ) + +#enddef + + + +PrintHead() +PrintDefines() +PrintTail() |