60 lines
2.0 KiB
Plaintext
60 lines
2.0 KiB
Plaintext
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*** Keywords ***
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Prepare Machine
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Execute Command using sysbus
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Execute Command mach create "ARM"
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Execute Command machine LoadPlatformDescriptionFromString "rom: Memory.MappedMemory @ sysbus 0x0 { size: 0x1000 }"
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Execute Command machine LoadPlatformDescriptionFromString "cpu: CPU.ARMv7A @ sysbus { cpuType: \\"cortex-a9\\" }"
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Execute Command cpu PC 0x0
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Thumb State Should Be Equal
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[Arguments] ${state}
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${cpsr}= Execute Command cpu GetRegister 25
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${t}= Evaluate bool(${cpsr.strip()} & (1<<5))
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Should Be Equal As Strings ${t} ${state}
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Load Program
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# nop (ARM)
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Execute Command sysbus WriteDoubleWord 0x00000000 0xe1a00000
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# blx 0xc
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Execute Command sysbus WriteDoubleWord 0x00000004 0xfa000000
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# nop (ARM)
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Execute Command sysbus WriteDoubleWord 0x00000008 0xe1a00000
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# 2x nop (Thumb)
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Execute Command sysbus WriteDoubleWord 0x0000000c 0x46c046c0
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# nop; bx lr (Thumb)
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Execute Command sysbus WriteDoubleWord 0x00000010 0x477046c0
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*** Test Cases ***
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Should Expose Thumb State In CPSR
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Prepare Machine
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Load Program
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PC Should Be Equal 0x00000000
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Thumb State Should Be Equal False
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Execute Command cpu Step 1
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PC Should Be Equal 0x00000004
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Thumb State Should Be Equal False
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Execute Command cpu Step 1
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PC Should Be Equal 0x0000000c
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Thumb State Should Be Equal True
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Execute Command cpu Step 1
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PC Should Be Equal 0x0000000e
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Thumb State Should Be Equal True
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Execute Command cpu Step 1
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PC Should Be Equal 0x00000010
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Thumb State Should Be Equal True
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Execute Command cpu Step 1
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PC Should Be Equal 0x000000012
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Thumb State Should Be Equal True
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Execute Command cpu Step 1
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PC Should Be Equal 0x00000008
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Thumb State Should Be Equal False
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