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fix logic instruction arguments

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This commit is contained in:
Torsten Ruger
2014-05-18 12:18:57 +03:00
parent 6abd10f278
commit 2be96dccdc
9 changed files with 69 additions and 61 deletions
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30
lib/arm/arm_machine.rb
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@ -11,27 +11,27 @@ module Arm
class ArmMachine < Vm::CMachine
def integer_less_or_equal block , first , right
block << cmp( first , right: right )
block << cmp( first , right )
Vm::Bool.new
end
def integer_plus block , result , first , right
block << add( result , left: first , :extra => right )
block << add( result , first , right )
result
end
def integer_minus block , result , first , right
block << sub( result , left: first , :extra => right )
block << sub( result , first , right )
result
end
def integer_load block , first , right
block << mov( first , right: right )
block << mov( first , right )
first
end
def integer_move block , first , right
block << mov( first , right: right )
block << mov( first , right )
first
end
@ -82,17 +82,17 @@ module Arm
# And coding it is a bit of a mind leap: it's all about finding a a result that gets the
# remainder smaller than an int. i'll post some links sometime. This is from the arm manual
block.instance_eval do
sub( remainder , left: number , right: 10 )
sub( number , left: number , right: number , shift_lsr: 2)
add( number , left: number , right: number , shift_lsr: 4)
add( number , left: number , right: number , shift_lsr: 8)
add( number , left: number , right: number , shift_lsr: 16)
mov( number , right: number , shift_lsr: 3)
sub( remainder , number , 10 )
sub( number , number , number , shift_lsr: 2)
add( number , number , number , shift_lsr: 4)
add( number , number , number , shift_lsr: 8)
add( number , number , number , shift_lsr: 16)
mov( number , number , shift_lsr: 3)
tmp = Vm::Integer.new( remainder.register + 1)
add( tmp , left: number , right: number , shift_lsl: 2)
sub( remainder , left: remainder , right: tmp , shift_lsl: 1 , update_status: 1)
add( number , left: number, right: 1 , condition_code: :pl )
add( remainder , left: remainder , right: 10 , condition_code: :mi )
add( tmp , number , number , shift_lsl: 2)
sub( remainder , remainder , tmp , shift_lsl: 1 , update_status: 1)
add( number , number, 1 , condition_code: :pl )
add( remainder , remainder , 10 , condition_code: :mi )
end
end