| /* ALU test program. |
| * Test instructions |
| * (r7,r6) = +/- (r0,r1); |
| * (r7,r6) = +/- (r0,r1)s; |
| */ |
| # mach: bfin |
| |
| .include "testutils.inc" |
| start |
| |
| |
| // test positive overflow |
| R0.L = 0xffff; |
| R0.H = 0x7fff; |
| R1.L = 0x0001; |
| R1.H = 0x0000; |
| R7 = 0; |
| ASTAT = R7; |
| R6 = R0 + R1, R7 = R0 - R1 (NS); |
| DBGA ( R6.L , 0x0000 ); |
| DBGA ( R6.H , 0x8000 ); |
| DBGA ( R7.L , 0xfffe ); |
| DBGA ( R7.H , 0x7fff ); |
| CC = AZ; R7 = CC; DBGA ( R7.L , 0x0 ); |
| CC = AN; R7 = CC; DBGA ( R7.L , 0x1 ); |
| CC = V; R7 = CC; DBGA ( R7.L , 0x1 ); |
| CC = AC0; R7 = CC; DBGA ( R7.L , 0x1 ); |
| |
| // test positive overflow |
| R0.L = 0xffff; |
| R0.H = 0x7fff; |
| R1.L = 0x0001; |
| R1.H = 0x0000; |
| R7 = 0; |
| ASTAT = R7; |
| R7 = R0 + R1, R6 = R0 - R1 (NS); |
| DBGA ( R6.L , 0xfffe ); |
| DBGA ( R6.H , 0x7fff ); |
| DBGA ( R7.L , 0x0000 ); |
| DBGA ( R7.H , 0x8000 ); |
| CC = AZ; R7 = CC; DBGA ( R7.L , 0x0 ); |
| CC = AN; R7 = CC; DBGA ( R7.L , 0x1 ); |
| CC = V; R7 = CC; DBGA ( R7.L , 0x1 ); |
| CC = AC0; R7 = CC; DBGA ( R7.L , 0x1 ); |
| |
| // test positive sat |
| R0.L = 0xffff; |
| R0.H = 0x7fff; |
| R1.L = 0x0001; |
| R1.H = 0x0000; |
| R7 = 0; |
| ASTAT = R7; |
| R6 = R0 + R1, R7 = R0 - R1 (S); |
| DBGA ( R6.L , 0xffff ); |
| DBGA ( R6.H , 0x7fff ); |
| DBGA ( R7.L , 0xfffe ); |
| DBGA ( R7.H , 0x7fff ); |
| CC = AZ; R7 = CC; DBGA ( R7.L , 0x0 ); |
| CC = AN; R7 = CC; DBGA ( R7.L , 0x0 ); |
| CC = V; R7 = CC; DBGA ( R7.L , 0x1 ); |
| CC = AC0; R7 = CC; DBGA ( R7.L , 0x1 ); |
| |
| // test positive sat |
| R0.L = 0xffff; |
| R0.H = 0x7fff; |
| R1.L = 0x0001; |
| R1.H = 0x0000; |
| R7 = 0; |
| ASTAT = R7; |
| R7 = R0 + R1, R6 = R0 - R1 (S); |
| DBGA ( R6.L , 0xfffe ); |
| DBGA ( R6.H , 0x7fff ); |
| DBGA ( R7.L , 0xffff ); |
| DBGA ( R7.H , 0x7fff ); |
| CC = AZ; R7 = CC; DBGA ( R7.L , 0x0 ); |
| CC = AN; R7 = CC; DBGA ( R7.L , 0x0 ); |
| CC = V; R7 = CC; DBGA ( R7.L , 0x1 ); |
| CC = AC0; R7 = CC; DBGA ( R7.L , 0x1 ); |
| |
| pass |
