ruby-x/rubyx
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

adding sources to register instructions

Browse Source
This commit is contained in:
Torsten Ruger
2015-07-27 12:13:39 +03:00
parent f91c9fabe8
commit 36f635f7c1
16 changed files with 55 additions and 47 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
lib/register/builtin/kernel.rb
View File

@ -13,12 +13,12 @@ module Register
function.source.blocks.last.codes.pop # no Method return
#Set up the Space as self upon init
space = Parfait::Space.object_space
function.source.add_code LoadConstant.new( space , Register.self_reg)
function.source.add_code LoadConstant.new(function, space , Register.self_reg)
message_ind = Register.resolve_index( :space , :first_message )
# Load the message to new message register (r3)
function.source.add_code Register.get_slot( :self , message_ind , :new_message)
function.source.add_code Register.get_slot( function , :self , message_ind , :new_message)
# And store the space as the new self (so the call can move it back as self)
function.source.add_code Register.set_slot( :self , :new_message , :receiver)
function.source.add_code Register.set_slot( function, :self , :new_message , :receiver)
# now we are set up to issue a call to the main
function.source.add_code Virtual::MethodCall.new(Virtual.machine.space.get_main)
emit_syscall( function , :exit )
@ -40,29 +40,29 @@ module Register
def emit_syscall function , name
save_message( function )
function.source.add_code Syscall.new( name )
function.source.add_code Syscall.new(function, name )
restore_message(function)
end
# save the current message, as the syscall destroys all context
#
# This relies on linux to save and restore all registers
#
#
def save_message(function)
function.source.add_code RegisterTransfer.new( Register.message_reg , :r8 )
function.source.add_code RegisterTransfer.new(function, Register.message_reg , :r8 )
end
def restore_message(function)
return_tmp = Register.tmp_reg
# get the sys return out of the way
function.source.add_code RegisterTransfer.new( Register.message_reg , return_tmp )
function.source.add_code RegisterTransfer.new(function, Register.message_reg , return_tmp )
# load the stored message into the base RegisterMachine
function.source.add_code RegisterTransfer.new( :r8 , Register.message_reg )
function.source.add_code RegisterTransfer.new(function, :r8 , Register.message_reg )
# save the return value into the message
function.source.add_code Register.set_slot( return_tmp , :message , :return_value )
function.source.add_code Register.set_slot( function, return_tmp , :message , :return_value )
# and "unroll" self and frame
function.source.add_code Register.get_slot(:message , :receiver, :self )
function.source.add_code Register.get_slot(:message , :frame , :frame)
function.source.add_code Register.get_slot(function, :message , :receiver, :self )
function.source.add_code Register.get_slot(function, :message , :frame , :frame)
end
end
extend ClassMethods