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51 lines
674 B
ArmAsm
51 lines
674 B
ArmAsm
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# Blackfin testcase for USP handling
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# mach: bfin
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# sim: --environment operating
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#include "test.h"
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.include "testutils.inc"
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start
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imm32 R5, 0x44455566
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imm32 R6, 0x12345678
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imm32 R7, 0x9abcdef0
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imm32 p0, EVT3;
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loadsym r0, exception;
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[p0] = r0;
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loadsym r0, usermode;
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reti = r0;
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SP = R6;
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USP = R7;
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RTI;
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usermode:
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# SP should now be USP
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R1 = SP;
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CC = R1 == R7;
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IF !CC JUMP fail;
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# Now set SP to another value
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SP = R5;
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# Move up to exception space
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EXCPT 0;
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exception:
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# SP should be the same as original, but USP should change
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R1 = SP;
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CC = R1 == R6;
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IF !CC JUMP fail;
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R1 = USP;
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CC = R1 == R5;
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IF !CC JUMP fail;
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dbg_pass
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fail:
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dbg_fail
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