// MAC test program. // Test result extraction of mac instructions. // Test basic edge values // UNSIGNED INTEGER mode into SINGLE destination register // test ops: "+=" # mach: bfin .include "testutils.inc" start // load r0=0x80000002 // load r1=0x80007fff // load r2=0xf0000000 // load r3=0x0000007f // load r4=0x00000080 // load r5=0xffffffff loadsym P0, data0; R0 = [ P0 ++ ]; R1 = [ P0 ++ ]; R2 = [ P0 ++ ]; R3 = [ P0 ++ ]; R4 = [ P0 ++ ]; R5 = [ P0 ++ ]; // 0x0002 * 0x0002 = 0x0000000004 -> 0x0004 A1 = A0 = 0; R5.H = (A1 += R0.L * R0.L), R5.L = (A0 += R0.L * R0.L) (IU); DBGA ( R5.L , 0x4 ); DBGA ( R5.H , 0x4 ); // 0x7fff * 0x007f = 0x00003f7f81 -> 0xffff A1 = A0 = 0; R5.H = (A1 += R1.L * R3.L), R5.L = (A0 += R1.L * R3.L) (IU); R5.H = (A1 += R1.L * R3.L), R5.L = (A0 += R1.L * R3.L) (IU); DBGA ( R5.L , 0xffff ); DBGA ( R5.H , 0xffff ); pass .data; data0: .dw 0x0002 .dw 0x8000 .dw 0x7fff .dw 0x8000 .dw 0x0000 .dw 0xf000 .dw 0x007f .dw 0x0000 .dw 0x0080 .dw 0x0000 .dw 0xffff .dw 0xffff