2017-01-19 08:02:29 +01:00
|
|
|
module Risc
|
2015-06-21 20:00:16 +02:00
|
|
|
|
2016-12-25 17:05:39 +01:00
|
|
|
# SlotToReg moves data into a register from memory.
|
2016-12-25 17:02:39 +01:00
|
|
|
# RegToSlot moves data into memory from a register.
|
2015-06-21 20:00:16 +02:00
|
|
|
# Both use a base memory (a register)
|
|
|
|
|
|
|
|
# This is because that is what cpu's can do. In programming terms this would be accessing
|
2016-12-25 17:05:39 +01:00
|
|
|
# an element in an array, in the case of SlotToReg setting the value in the array.
|
2015-06-21 20:00:16 +02:00
|
|
|
|
2018-03-21 11:18:04 +01:00
|
|
|
# btw: to move data between registers, use Transfer
|
2015-06-21 20:00:16 +02:00
|
|
|
|
2016-12-25 17:05:39 +01:00
|
|
|
class SlotToReg < Getter
|
2015-06-21 20:00:16 +02:00
|
|
|
|
2014-10-03 10:07:18 +02:00
|
|
|
end
|
2015-06-30 08:43:50 +02:00
|
|
|
|
2016-12-25 17:05:39 +01:00
|
|
|
# Produce a SlotToReg instruction.
|
2015-07-27 11:13:39 +02:00
|
|
|
# Array and to are registers or symbols that can be transformed to a register by resolve_to_register
|
2016-12-28 17:16:39 +01:00
|
|
|
# index resolves with resolve_to_index.
|
2018-04-05 19:10:00 +02:00
|
|
|
def self.slot_to_reg( source , array , index , to)
|
2016-12-28 17:16:39 +01:00
|
|
|
index = resolve_to_index( array , index)
|
|
|
|
array = resolve_to_register( array )
|
|
|
|
to = resolve_to_register( to )
|
2016-12-25 17:05:39 +01:00
|
|
|
SlotToReg.new( source , array , index , to)
|
2015-06-30 08:43:50 +02:00
|
|
|
end
|
2014-10-03 10:07:18 +02:00
|
|
|
end
|