1 // Test extraction from accumulators: 2 // SIGNED FRACTIONAL and SIGNED INT mode into register PAIR 3 # mach: bfin 4 5 .include "testutils.inc" 6 start 7 8 9 // load r0=0x7ffffff0 10 // load r1=0xfffffff0 11 // load r2=0x0fffffff 12 // load r3=0x80100000 13 // load r4=0x000000ff 14 loadsym P0, data0; 15 R0 = [ P0 ++ ]; 16 R1 = [ P0 ++ ]; 17 R2 = [ P0 ++ ]; 18 R3 = [ P0 ++ ]; 19 R4 = [ P0 ++ ]; 20 21 // extract 22 // 0x007ffffff0 -> 0x7fffffff0 23 A1 = A0 = 0; 24 A1.w = R0; 25 A0.w = R0; 26 R7 = A1, R6 = A0; 27 DBGA ( R7.L , 0xfff0 ); 28 DBGA ( R7.H , 0x7fff ); 29 DBGA ( R6.L , 0xfff0 ); 30 DBGA ( R6.H , 0x7fff ); 31 32 // extract with saturate 33 // 0x00fffffff0 -> 0x7ffffffff 34 A1 = A0 = 0; 35 A1.w = R1; 36 A0.w = R1; 37 R7 = A1, R6 = A0; 38 DBGA ( R7.L , 0xffff ); 39 DBGA ( R7.H , 0x7fff ); 40 DBGA ( R6.L , 0xffff ); 41 DBGA ( R6.H , 0x7fff ); 42 43 // extract with saturate negative 44 // 0xff0ffffff0 -> 0x80000000 45 A1 = A0 = 0; 46 A1.w = R2; 47 A0.w = R2; 48 A1.x = R4.L; 49 A0.x = R4.L; 50 R7 = A1, R6 = A0; 51 DBGA ( R7.L , 0x0000 ); 52 DBGA ( R7.H , 0x8000 ); 53 DBGA ( R6.L , 0x0000 ); 54 DBGA ( R6.H , 0x8000 ); 55 56 // extract integer (same as fract) 57 // 0x007ffffff0 -> 0x7fffffff0 58 A1 = A0 = 0; 59 A1.w = R0; 60 A0.w = R0; 61 R7 = A1, R6 = A0 (IS); 62 DBGA ( R7.L , 0xfff0 ); 63 DBGA ( R7.H , 0x7fff ); 64 DBGA ( R6.L , 0xfff0 ); 65 DBGA ( R6.H , 0x7fff ); 66 67 // extract with saturate negative 68 // 0xff0ffffff0 -> 0x80000000 69 A1 = A0 = 0; 70 A1.w = R2; 71 A0.w = R2; 72 A1.x = R4.L; 73 A0.x = R4.L; 74 R7 = A1, R6 = A0 (IS); 75 DBGA ( R7.L , 0x0000 ); 76 DBGA ( R7.H , 0x8000 ); 77 DBGA ( R6.L , 0x0000 ); 78 DBGA ( R6.H , 0x8000 ); 79 80 pass 81 82 .data 83 data0: 84 .dw 0xfff0 85 .dw 0x7fff 86 .dw 0xfff0 87 .dw 0xffff 88 .dw 0xffff 89 .dw 0x0fff 90 .dw 0x0000 91 .dw 0x8010 92 .dw 0x00ff 93 .dw 0x0000 94
Indexes created Thu Jun 25 00:25:11 UTC 2026