link.s revision 1.1.1.1
1# Blackfin testcase for link/unlink instructions 2# mach: bfin 3 4 .include "testutils.inc" 5 6 start 7 8 /* give FP/RETS known/different values */ 9 R7.H = 0xdead; 10 R7.L = 0x1234; 11 RETS = R7; 12 R6 = R7; 13 R6 += 0x23; 14 FP = R6; 15 16 /* SP should have moved by -8 bytes (to push FP/RETS) */ 17 R0 = SP; 18 LINK 0; 19 R1 = SP; 20 R1 += 8; 21 CC = R0 == R1; 22 IF !CC JUMP 1f; 23 24 /* FP should now have the same value as SP */ 25 R1 = SP; 26 R2 = FP; 27 CC = R1 == R2; 28 IF !CC JUMP 1f; 29 30 /* make sure FP/RETS on the stack have our known values */ 31 R1 = [SP]; 32 CC = R1 == R6; 33 IF !CC JUMP 1f; 34 35 R1 = [SP + 4]; 36 CC = R1 == R7; 37 IF !CC JUMP 1f; 38 39 /* UNLINK should: 40 * assign SP to current FP 41 * adjust SP by -8 bytes 42 * restore RETS/FP from the stack 43 */ 44 R4 = 0; 45 RETS = R4; 46 R0 = SP; 47 UNLINK; 48 49 /* Check new SP */ 50 R1 = SP; 51 R1 += -0x8; 52 CC = R1 == R0; 53 IF !CC JUMP 1f; 54 55 /* Check restored RETS */ 56 R1 = RETS; 57 CC = R1 == R7; 58 IF !CC JUMP 1f; 59 60 /* Check restored FP */ 61 R1 = FP; 62 CC = R1 == R6; 63 IF !CC JUMP 1f; 64 65 pass 661: 67 fail 68