use compiler to generate methods and their instructions
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Torsten Ruger
parent
99a695907c
commit
191be8d2f6
@ -12,7 +12,7 @@ module Register
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# As we write before we recurse (save a push) we write the number backwards
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# arguments: string address , integer
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# def utoa context
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# utoa_function = MethodSource.create_method(:Integer ,:utoa , [ :Integer ] )
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# compiler = Soml::Compiler.new.create_method(:Integer ,:utoa , [ :Integer ] ).init_method
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# function.source.receiver = :Integer
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# return utoa_function
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# # str_addr = utoa_function.receiver
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@ -31,8 +31,8 @@ module Register
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# end
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def putint context
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putint_function = MethodSource.create_method(:Integer,:putint , [] )
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return putint_function
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compiler = Soml::Compiler.new.create_method(:Integer,:putint , [] ).init_method
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return compiler.method
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# buffer = Parfait::Word.new(" ") # create a buffer
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# context.object_space.add_object buffer # and save it (function local variable: a no no)
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# int = putint_function.receiver
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@ -58,8 +58,8 @@ module Register
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# a hand coded version of the fibonachi numbers
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# not my hand off course, found in the net http://www.peter-cockerell.net/aalp/html/ch-5.html
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def fibo context
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fibo_function = MethodSource.create_method(:Integer,:fibo , [] )
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return fibo_function
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compiler = Soml::Compiler.new.create_method(:Integer,:fibo , [] ).init_method
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return compiler.method
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# int = fibo_function.receiver
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#
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# last = fibo_function.new_block("return")
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@ -6,58 +6,58 @@ module Register
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# it isn't really a function, ie it is jumped to (not called), exits and may not return
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# so it is responsible for initial setup
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def __init__ context
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function = MethodSource.create_method(:Kernel,:__init__ , [])
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compiler = Soml::Compiler.new.create_method(:Kernel,:__init__ , [])
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# no method enter or return (automatically added), remove
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new_start = Label.new(function , "__init__" )
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function.instructions = new_start
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function.source.set_current new_start
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new_start = Label.new("__init__" , "__init__" )
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compiler.method.instructions = new_start
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compiler.set_current new_start
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#Set up the Space as self upon init
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space = Parfait::Space.object_space
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space_reg = Register.tmp_reg(:Space)
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function.source.add_code LoadConstant.new(function, space , space_reg)
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compiler.add_code LoadConstant.new("__init__", space , space_reg)
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message_ind = Register.resolve_index( :space , :first_message )
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# Load the message to new message register (r1)
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function.source.add_code Register.get_slot( function , space_reg , message_ind , :new_message)
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compiler.add_code Register.get_slot( "__init__" , space_reg , message_ind , :new_message)
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# And store the space as the new self (so the call can move it back as self)
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function.source.add_code Register.set_slot( function, space_reg , :new_message , :receiver)
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compiler.add_code Register.set_slot( "__init__", space_reg , :new_message , :receiver)
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# now we are set up to issue a call to the main
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Register.issue_call( function , Register.machine.space.get_main)
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emit_syscall( function , :exit )
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return function
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Register.issue_call( compiler , Register.machine.space.get_main)
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emit_syscall( compiler , :exit )
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return compiler.method
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end
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def exit context
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function = MethodSource.create_method(:Kernel,:exit , [])
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return function
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compiler = Soml::Compiler.new.create_method(:Kernel,:exit , []).init_method
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return compiler.method
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ret = RegisterMachine.instance.exit(function)
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function.set_return ret
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function
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end
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def emit_syscall function , name
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save_message( function )
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function.source.add_code Syscall.new(function, name )
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restore_message(function)
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def emit_syscall compiler , name
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save_message( compiler )
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compiler.add_code Syscall.new("emit_syscall", name )
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restore_message(compiler)
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end
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# save the current message, as the syscall destroys all context
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#
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# This relies on linux to save and restore all registers
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#
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def save_message(function)
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def save_message(compiler)
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r8 = RegisterValue.new( :r8 , :Message)
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function.source.add_code RegisterTransfer.new(function, Register.message_reg , r8 )
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compiler.add_code RegisterTransfer.new("save_message", Register.message_reg , r8 )
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end
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def restore_message(function)
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def restore_message(compiler)
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r8 = RegisterValue.new( :r8 , :Message)
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return_tmp = Register.tmp_reg :Integer
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# get the sys return out of the way
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function.source.add_code RegisterTransfer.new(function, Register.message_reg , return_tmp )
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compiler.add_code RegisterTransfer.new("restore_message", Register.message_reg , return_tmp )
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# load the stored message into the base RegisterMachine
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function.source.add_code RegisterTransfer.new(function, r8 , Register.message_reg )
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compiler.add_code RegisterTransfer.new("restore_message", r8 , Register.message_reg )
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# save the return value into the message
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function.source.add_code Register.set_slot( function, return_tmp , :message , :return_value )
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compiler.add_code Register.set_slot( "restore_message" , return_tmp , :message , :return_value )
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# and "unroll" self and frame
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end
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end
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@ -6,8 +6,8 @@ module Register
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# main entry point, ie __init__ calls this
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# defined here as empty, to be redefined
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def main context
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function = MethodSource.create_method(:Object , :main , [])
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return function
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compiler = Soml::Compiler.new.create_method(:Object , :main , []).init_method
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return compiler.method
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end
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end
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@ -3,10 +3,10 @@ module Register
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module Word
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module ClassMethods
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def putstring context
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function = MethodSource.create_method(:Word , :putstring , [] )
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function.source.add_code Register.get_slot( function , :message , :receiver , :new_message )
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Kernel.emit_syscall( function , :putstring )
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function
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compiler = Soml::Compiler.new.create_method(:Word , :putstring , [] ).init_method
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compiler.add_code Register.get_slot( "putstring" , :message , :receiver , :new_message )
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Kernel.emit_syscall( compiler , :putstring )
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compiler.method
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end
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end
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extend ClassMethods
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