1/* ALU test program. 2 * Test instructions 3 * r7 = +/- (r0,r1); 4 * r7 = -/+ (r0,r1); 5 * r7 = -/- (r0,r1); 6 */ 7 8# mach: bfin 9 10.include "testutils.inc" 11 start 12 13// test subtraction 14 R0.L = 0x000f; 15 R0.H = 0x0010; 16 R1.L = 0x000f; 17 R1.H = 0x0010; 18 R7 = 0; 19 ASTAT = R7; 20 R7 = R0 +|- R1; 21 DBGA ( R7.L , 0x0000 ); 22 DBGA ( R7.H , 0x0020 ); 23 CC = AZ; R7 = CC; DBGA ( R7.L , 0x1 ); 24 CC = AN; R7 = CC; DBGA ( R7.L , 0x0 ); 25 CC = V; R7 = CC; DBGA ( R7.L , 0x0 ); 26 CC = AC0; R7 = CC; DBGA ( R7.L , 0x1 ); 27 28// test overflow negative on subtraction 29 R0.L = 0x8000; 30 R0.H = 0x0010; 31 R1.L = 0x0001; 32 R1.H = 0x0010; 33 R7 = 0; 34 ASTAT = R7; 35 R7 = R0 +|- R1; 36 DBGA ( R7.L , 0x7fff ); 37 DBGA ( R7.H , 0x0020 ); 38 CC = AZ; R7 = CC; DBGA ( R7.L , 0x0 ); 39 CC = AN; R7 = CC; DBGA ( R7.L , 0x0 ); 40 CC = V; R7 = CC; DBGA ( R7.L , 0x1 ); 41 CC = AC0; R7 = CC; DBGA ( R7.L , 0x1 ); 42 43// test saturate negative on subtraction +/- 44 R0.L = 0x8000; 45 R0.H = 0x0010; 46 R1.L = 0x0001; 47 R1.H = 0x0010; 48 R7 = 0; 49 ASTAT = R7; 50 R7 = R0 +|- R1 (S); 51 DBGA ( R7.L , 0x8000 ); 52 DBGA ( R7.H , 0x0020 ); 53 CC = AZ; R7 = CC; DBGA ( R7.L , 0x0 ); 54 CC = AN; R7 = CC; DBGA ( R7.L , 0x1 ); 55 CC = V; R7 = CC; DBGA ( R7.L , 0x1 ); 56 CC = AC0; R7 = CC; DBGA ( R7.L , 0x1 ); 57 58// test saturate negative on subtraction -/+ 59 R0.L = 0x8000; 60 R0.H = 0x8000; 61 R1.L = 0x0001; 62 R1.H = 0x0001; 63 R7 = 0; 64 ASTAT = R7; 65 R7 = R0 -|+ R1 (S); 66 DBGA ( R7.L , 0x8001 ); 67 DBGA ( R7.H , 0x8000 ); 68 CC = AZ; R5 = CC; DBGA ( R5.L , 0x0 ); 69 CC = AN; R5 = CC; DBGA ( R5.L , 0x1 ); 70 CC = V; R5 = CC; DBGA ( R5.L , 0x1 ); 71 CC = AC0; R5 = CC; DBGA ( R5.L , 0x0 ); 72 73// test saturate negative on subtraction -/- 74 R0.L = 0x8000; 75 R0.H = 0x8000; 76 R1.L = 0x0001; 77 R1.H = 0x0001; 78 R7 = 0; 79 ASTAT = R7; 80 R7 = R0 -|- R1 (S); 81 DBGA ( R7.L , 0x8000 ); 82 DBGA ( R7.H , 0x8000 ); 83 CC = AZ; R7 = CC; DBGA ( R7.L , 0x0 ); 84 CC = AN; R7 = CC; DBGA ( R7.L , 0x1 ); 85 CC = V; R7 = CC; DBGA ( R7.L , 0x1 ); 86 CC = AC0; R7 = CC; DBGA ( R7.L , 0x1 ); 87 88// test saturate positive on subtraction -/+ 89 R0.L = 0x7fff; 90 R0.H = 0x7fff; 91 R1.L = 0xffff; 92 R1.H = 0xffff; 93 R7 = 0; 94 ASTAT = R7; 95 R7 = R0 -|+ R1 (S); 96 DBGA ( R7.L , 0x7ffe ); 97 DBGA ( R7.H , 0x7fff ); 98 CC = AZ; R7 = CC; DBGA ( R7.L , 0x0 ); 99 CC = AN; R7 = CC; DBGA ( R7.L , 0x0 ); 100 CC = V; R7 = CC; DBGA ( R7.L , 0x1 ); 101 CC = AC0; R7 = CC; DBGA ( R7.L , 0x1 ); 102 103 pass 104