22 lines
839 B
Ruby
22 lines
839 B
Ruby
require_relative 'helper'
|
|
|
|
class TestControl < MiniTest::Test
|
|
include ArmHelper
|
|
|
|
def test_b
|
|
# the address is what an assembler calculates (a signed number for the amount of instructions),
|
|
# ie the relative (to pc) address -8 (pipeline) /4 so save space
|
|
# so the cpu adds the value*4 and starts loading that (load, decode, execute)
|
|
code = @machine.b -4 #this jumps to the next instruction
|
|
assert_code code , :b , [0xff,0xff,0xff,0xea] #ea ff ff fe
|
|
end
|
|
def test_call #see comment above. bx not implemented (as it means into thumb, and no thumb here)
|
|
code = @machine.call -4 ,{} #this jumps to the next instruction
|
|
assert_code code , :call, [0xff,0xff,0xff,0xeb] #ea ff ff fe
|
|
end
|
|
def test_swi
|
|
code = @machine.swi 0x05
|
|
assert_code code , :swi , [0x05,0x00,0x00,0xef]#ef 00 00 05
|
|
end
|
|
end
|