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mor on sys call implementation

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This commit is contained in:
Torsten Ruger
2015-06-23 19:55:54 +03:00
parent 2aba926f1f
commit 1a82ebcd69
5 changed files with 26 additions and 11 deletions
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15
lib/register/builtin/kernel.rb
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@ -18,8 +18,6 @@ module Builtin
def putstring context
function = Virtual::CompiledMethodInfo.create_method(:Kernel , :putstring , [] )
emit_syscall( function , :putstring )
ret = Virtual::RegisterMachine.instance.write_stdout(function)
function.set_return ret
function
end
def exit context
@ -51,22 +49,23 @@ module Builtin
space_tmp = Register::RegisterReference.tmp_reg
ind = Parfait::Space.object_space.get_layout().index_of( :syscall_message )
raise "index not found for :syscall_message" unless ind
function.info.add_code LoadConstant.new( space_tmp , Parfait::Space.object_space )
function.info.add_code << SetSlot.new( Virtual::Slot::MESSAGE_REGISTER , space_tmp , ind)
function.info.add_code Register::LoadConstant.new( space_tmp , Parfait::Space.object_space )
function.info.add_code Register::SetSlot.new( Virtual::Slot::MESSAGE_REGISTER , space_tmp , ind)
end
def restore_message(function)
# get the sys return out of the way
return_tmp = Register::RegisterReference.tmp_reg
# load the space into the base register
function.info.add_code RegisterTransfer.new( Virtual::Slot::MESSAGE_REGISTER , return_tmp )
function.info.add_code Register::RegisterTransfer.new( Virtual::Slot::MESSAGE_REGISTER , return_tmp )
slot = Virtual::Slot
# find the stored message
ind = Parfait::Space.object_space.get_layout().index_of( :syscall_message )
raise "index not found for #{kind}.#{kind.class}" unless ind
# and load it into the base RegisterMachine
function.info.add_code GetSlot.new( Virtual::Slot::MESSAGE_REGISTER , ind , Virtual::Slot::MESSAGE_REGISTER )
function.info.add_code Register::GetSlot.new( slot::MESSAGE_REGISTER , ind , slot::MESSAGE_REGISTER )
# and "unroll" self and frame
function.info.add_code GetSlot.new( slot::MESSAGE_REGISTER , Virtual::SELF_INDEX, slot::SELF_REGISTER )
function.info.add_code GetSlot.new( slot::MESSAGE_REGISTER , Virtual::FRAME_INDEX, slot::FRAME_REGISTER )
function.info.add_code Register::GetSlot.new( slot::MESSAGE_REGISTER , Virtual::SELF_INDEX, slot::SELF_REGISTER )
function.info.add_code Register::GetSlot.new( slot::MESSAGE_REGISTER , Virtual::FRAME_INDEX, slot::FRAME_REGISTER )
end
end
extend ClassMethods