33 lines
1011 B
Ruby
33 lines
1011 B
Ruby
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require_relative 'helper'
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require "asm/arm/code_generator"
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# try to test that the generation of basic instructions works
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# one instruction at a time, reverse testing from objdump --demangle -Sfghxp
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# tests are named as per assembler code, ie test_mov testing mov instruction
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# adc add and bic eor orr rsb rsc sbc sub mov mvn cmn cmp teq tst b bl bx swi strb
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class TestSmallProg < MiniTest::Test
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# need a code generator, for arm
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def setup
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@generator = Asm::Arm::CodeGenerator.new
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end
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def test_generate_small
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@generator.instance_eval {
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mov r0, 5 #1
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loop_start = label
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loop_start.set!
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subs r0, r0, 1 #2
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bne loop_start #3
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mov r7, 1 #4
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swi 0 #5 5 instruction x 4 == 20
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}
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writer = Asm::ObjectWriter.new(Elf::Constants::TARGET_ARM)
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assembly = @generator.assemble
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assert_equal 20 , assembly.length
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writer.set_text assembly
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writer.save('small_test.o')
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end
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end
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