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some common instruction extration

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This commit is contained in:
Torsten Ruger
2016-12-15 12:38:22 +02:00
parent fdefb8e7a5
commit b93f207638
5 changed files with 19 additions and 9 deletions
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6
lib/arm/instructions/move_instruction.rb
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@ -36,7 +36,7 @@ module Arm
# don't overwrite instance variables, to make assembly repeatable
def assemble(io)
rn , operand , right , immediate = @rn , @operand , @from , 1
case right
when Numeric
operand = numeric_operand(right)
@ -54,8 +54,8 @@ module Arm
val |= shift(@attributes[:update_status] , 12 + 4 + 4)#20
val |= shift(op_bit_code , 12 + 4 + 4 + 1)
val |= shift(immediate , 12 + 4 + 4 + 1 + 4)
val |= shift(instuction_class , 12 + 4 + 4 + 1 + 4 + 1)
val |= shift(cond_bit_code , 12 + 4 + 4 + 1 + 4 + 1 + 2)
val |= instruction_code
val |= condition_code
io.write_uint32 val
# by now we have the extra add so assemble that
@extra.assemble(io) if(@extra) #puts "Assemble extra at #{val.to_s(16)}"