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#!/usr/bin/env python
# $Id: glsparcasm.py,v 1.7 2002/01/03 16:33:59 brianp Exp $
# Mesa 3-D graphics library
# Version: 4.1
#
# Copyright (C) 1999-2001 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 src/SPARC/glapi_sparc.S file.
#
# Usage:
# gloffsets.py >glapi_sparc.S
#
# Dependencies:
# The apispec file must be in the current directory.
import apiparser;
def PrintHead():
print '/* DO NOT EDIT - This file generated automatically with glsparcasm.py script */'
print '#include "glapioffsets.h"'
print ''
print '/* The _glapi_Dispatch symbol addresses get relocated into the'
print ' * sethi/or instruction sequences below at library init time.'
print ' */'
print ''
print ''
print '.text'
print '.align 32'
print '.globl __glapi_sparc_icache_flush'
print '__glapi_sparc_icache_flush: /* %o0 = insn_addr */'
print '\tflush\t%o0'
print '\tretl'
print '\tnop'
print ''
print '.data'
print '.align 64'
print ''
print '.globl _mesa_sparc_glapi_begin'
print '.type _mesa_sparc_glapi_begin,#function'
print '_mesa_sparc_glapi_begin:'
return
#endif
def PrintTail():
print '\t nop'
print ''
print '.globl _mesa_sparc_glapi_end'
print '.type _mesa_sparc_glapi_end,#function'
print '_mesa_sparc_glapi_end:'
print ''
#endif
records = []
def FindOffset(funcName):
for (name, alias, offset) in records:
if name == funcName:
return offset
#endif
#endfor
return -1
#enddef
def EmitFunction(name, returnType, argTypeList, argNameList, alias, offset):
argList = apiparser.MakeArgList(argTypeList, argNameList)
if alias != '':
dispatchName = alias
else:
dispatchName = name
#endif
if offset < 0:
# try to find offset from alias name
assert dispatchName != ''
offset = FindOffset(dispatchName)
if offset == -1:
#print 'Cannot dispatch %s' % name
return
#endif
#endif
# save this info in case we need to look up an alias later
records.append((name, dispatchName, offset))
# print the assembly code
print ''
print '.globl gl%s' % (name)
print '.type gl%s,#function' % (name)
print 'gl%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 '\tldx\t[%g1 + %g2], %g1'
print "\tsethi\t%%hi(8 * _gloffset_%s), %%g2" % (dispatchName)
print "\tor\t%%g2, %%lo(8 * _gloffset_%s), %%g2" % (dispatchName)
print '\tldx\t[%g1 + %g2], %g3'
print '#else'
print '\tsethi\t%hi(0x00000000), %g1'
print '\tld\t[%g1 + %lo(0x00000000)], %g1'
print "\tld\t[%%g1 + (4 * _gloffset_%s)], %%g3" % (dispatchName)
print '#endif'
print '\tjmpl\t%g3, %g0'
print '\tnop'
#enddef
PrintHead()
apiparser.ProcessSpecFile("APIspec", EmitFunction)
PrintTail()
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