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# Blackfin testcase for link/unlink instructions
# mach: bfin
.include "testutils.inc"
start
/* give FP/RETS known/different values */
R7.H = 0xdead;
R7.L = 0x1234;
RETS = R7;
R6 = R7;
R6 += 0x23;
FP = R6;
/* SP should have moved by -8 bytes (to push FP/RETS) */
R0 = SP;
LINK 0;
R1 = SP;
R1 += 8;
CC = R0 == R1;
IF !CC JUMP 1f;
/* FP should now have the same value as SP */
R1 = SP;
R2 = FP;
CC = R1 == R2;
IF !CC JUMP 1f;
/* make sure FP/RETS on the stack have our known values */
R1 = [SP];
CC = R1 == R6;
IF !CC JUMP 1f;
R1 = [SP + 4];
CC = R1 == R7;
IF !CC JUMP 1f;
/* UNLINK should:
* assign SP to current FP
* adjust SP by -8 bytes
* restore RETS/FP from the stack
*/
R4 = 0;
RETS = R4;
R0 = SP;
UNLINK;
/* Check new SP */
R1 = SP;
R1 += -0x8;
CC = R1 == R0;
IF !CC JUMP 1f;
/* Check restored RETS */
R1 = RETS;
CC = R1 == R7;
IF !CC JUMP 1f;
/* Check restored FP */
R1 = FP;
CC = R1 == R6;
IF !CC JUMP 1f;
pass
1:
fail
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