// Test extraction from accumulators: // SIGNED FRACTIONAL and SIGNED INT mode into register PAIR with SCALE # mach: bfin .include "testutils.inc" start // load r0=0x0ffffff0 // load r1=0x7ffffff0 // load r2=0x0fffffff // load r3=0x80100000 // load r4=0x000000ff loadsym P0, data0; R0 = [ P0 ++ ]; R1 = [ P0 ++ ]; R2 = [ P0 ++ ]; R3 = [ P0 ++ ]; R4 = [ P0 ++ ]; // extract // 0x000ffffff0 -> 0x1ffffffe0 A1 = A0 = 0; A1.w = R0; A0.w = R0; R7 = A1, R6 = A0 (S2RND); DBGA ( R7.L , 0xffe0 ); DBGA ( R7.H , 0x1fff ); DBGA ( R6.L , 0xffe0 ); DBGA ( R6.H , 0x1fff ); // extract (saturate) // 0x007ffffff0 -> 0x7ffffffff A1 = A0 = 0; A1.w = R1; A0.w = R1; R7 = A1, R6 = A0 (S2RND); DBGA ( R7.L , 0xffff ); DBGA ( R7.H , 0x7fff ); DBGA ( R6.L , 0xffff ); DBGA ( R6.H , 0x7fff ); // extract (saturate negative) // 0xff0ffffff0 -> 0x80000000 A1 = A0 = 0; A1.w = R0; A0.w = R0; A1.x = R4.L; A0.x = R4.L; R7 = A1, R6 = A0 (S2RND); DBGA ( R7.L , 0x0000 ); DBGA ( R7.H , 0x8000 ); DBGA ( R6.L , 0x0000 ); DBGA ( R6.H , 0x8000 ); // extract int // 0x000ffffff0 -> 0x1ffffffe0 A1 = A0 = 0; A1.w = R0; A0.w = R0; R7 = A1, R6 = A0 (ISS2); DBGA ( R7.L , 0xffe0 ); DBGA ( R7.H , 0x1fff ); DBGA ( R6.L , 0xffe0 ); DBGA ( R6.H , 0x1fff ); pass .data data0: .dw 0xfff0 .dw 0x0fff .dw 0xfff0 .dw 0x7fff .dw 0xffff .dw 0x0fff .dw 0x0000 .dw 0x8010 .dw 0x00ff .dw 0x0000