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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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8
lib/arm/instructions/memory_instruction.rb
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@ -55,7 +55,6 @@ module Arm
#not sure about these 2 constants. They produce the correct output for str r0 , r1
# but i can't help thinking that that is because they are not used in that instruction and
# so it doesn't matter. Will see
instuction_class = 0b01 # OPC_MEMORY_ACCESS
if (operand.is_a?(Symbol) or operand.is_a?(::Register::RegisterValue))
val = reg_code(operand)
@pre_post_index = 0
@ -79,11 +78,14 @@ module Arm
val |= shift(add_offset , 12 + 4 + 4 + 1 + 1 + 1)
val |= shift(@pre_post_index, 12 + 4 + 4 + 1 + 1 + 1 + 1)#24
val |= shift(i , 12 + 4 + 4 + 1 + 1 + 1 + 1 + 1)
val |= shift(instuction_class,12 + 4 + 4 + 1 + 1 + 1 + 1 + 1 + 1)
val |= shift(cond_bit_code , 12 + 4 + 4 + 1 + 1 + 1 + 1 + 1 + 1 + 2)
val |= instruction_code
val |= condition_code
io.write_uint32 val
end
def instuction_class
0b01 # OPC_MEMORY_ACCESS
end
def add_offset
@attributes[:add_offset] ? 0 : 1
end