1// Test result extraction of mac instructions. 2// Test basic edge values 3// SIGNED INTEGER mode into SINGLE destination register 4// test ops: "+=" 5# mach: bfin 6 7.include "testutils.inc" 8 start 9 10 11// load r0=0x80000001 12// load r1=0x80007fff 13// load r2=0xf0000000 14// load r3=0x0000007f 15// load r4=0x00000080 16 loadsym P0, data0; 17 R0 = [ P0 ++ ]; 18 R1 = [ P0 ++ ]; 19 R2 = [ P0 ++ ]; 20 R3 = [ P0 ++ ]; 21 R4 = [ P0 ++ ]; 22 23// integer extraction with no saturation 24// 0x1 * 0x1 = 0x0000000001 -> 0x1 25 A1 = A0 = 0; 26 R5.H = (A1 += R0.L * R0.L), R5.L = (A0 += R0.L * R0.L) (IS); 27 DBGA ( R5.L , 0x1 ); 28 DBGA ( R5.H , 0x1 ); 29 30// integer extraction with positive saturation 31// 0x7fff * 0x7f -> 0x7fff 32 A1 = A0 = 0; 33 R5.H = (A1 += R1.L * R3.L), R5.L = (A0 += R1.L * R3.L) (IS); 34 DBGA ( R5.L , 0x7fff ); 35 DBGA ( R5.H , 0x7fff ); 36 37// integer extraction with negative saturation 38// 0x8000 * 0x7f -> 0x8000 39 A1 = A0 = 0; 40 R5.H = (A1 += R1.H * R3.L), R5.L = (A0 += R1.H * R3.L) (IS); 41 DBGA ( R5.L , 0x8000 ); 42 DBGA ( R5.H , 0x8000 ); 43 44 pass 45 46 .data; 47data0: 48 .dw 0x0001 49 .dw 0x8000 50 .dw 0x7fff 51 .dw 0x8000 52 .dw 0x0000 53 .dw 0xf000 54 .dw 0x007f 55 .dw 0x0000 56 .dw 0x0080 57 .dw 0x0000 58