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s5.s revision 1.1 
      1 //  Test  r4 = ROT    (r2 by r3);
      2 # mach: bfin
      3 
      4 .include "testutils.inc"
      5 	start
      6 
      7 
      8 	R0.L = 0x0001;
      9 	R0.H = 0x8000;
     10 
     11 // rot
     12 //  left  by 1
     13 // 8000 0001 -> 0000 0002 cc=1
     14 	R7 = 0;
     15 	CC = R7;
     16 	R1 = 1;
     17 	R6 = ROT R0 BY R1.L;
     18 	DBGA ( R6.L , 0x0002 );
     19 	DBGA ( R6.H , 0x0000 );
     20 	R7 = CC;
     21 	DBGA ( R7.L , 0x0001 );
     22 
     23 // rot
     24 //  right by -1
     25 // 8000 0001 -> 4000 0000 cc=1
     26 	R7 = 0;
     27 	CC = R7;
     28 	R1.L = 0xffff;	// check alternate mechanism for immediates
     29 	R1.H = 0xffff;
     30 	R6 = ROT R0 BY R1.L;
     31 	DBGA ( R6.L , 0x0000 );
     32 	DBGA ( R6.H , 0x4000 );
     33 	R7 = CC;
     34 	DBGA ( R7.L , 0x0001 );
     35 
     36 // rot
     37 //  right by largest positive magnitude of 31
     38 // 8000 0001 -> a000 0000 cc=0
     39 	R7 = 0;
     40 	CC = R7;
     41 	R1 = 31;
     42 	R6 = ROT R0 BY R1.L;
     43 	DBGA ( R6.L , 0x0000 );
     44 	DBGA ( R6.H , 0xa000 );
     45 	R7 = CC;
     46 	DBGA ( R7.L , 0x0000 );
     47 
     48 // rot
     49 //  right by largest positive magnitude of 31 with cc=1
     50 // 8000 0001 cc=1 -> a000 0000 cc=0
     51 	R7 = 1;
     52 	CC = R7;
     53 	R1 = 31;
     54 	R6 = ROT R0 BY R1.L;
     55 	DBGA ( R6.L , 0x0000 );
     56 	DBGA ( R6.H , 0xe000 );
     57 	R7 = CC;
     58 	DBGA ( R7.L , 0x0000 );
     59 
     60 // rot
     61 //  right by largest negative magnitude of -31
     62 // 8000 0001 -> 0000 0005 cc=0
     63 	R7 = 0;
     64 	CC = R7;
     65 	R1 = -31;
     66 	R6 = ROT R0 BY R1.L;
     67 	DBGA ( R6.L , 0x0005 );
     68 	DBGA ( R6.H , 0x0000 );
     69 	R7 = CC;
     70 	DBGA ( R7.L , 0x0000 );
     71 
     72 // rot
     73 //  right by largest negative magnitude of -31 with cc=1
     74 // 8000 0001 cc=1 -> 0000 0007 cc=0
     75 	R7 = 1;
     76 	CC = R7;
     77 	R1 = -31;
     78 	R6 = ROT R0 BY R1.L;
     79 	DBGA ( R6.L , 0x0007 );
     80 	DBGA ( R6.H , 0x0000 );
     81 	R7 = CC;
     82 	DBGA ( R7.L , 0x0000 );
     83 
     84 // rot
     85 //  left by 7
     86 // 8000 0001 cc=1 -> 0000 00e0 cc=0
     87 	R7 = 1;
     88 	CC = R7;
     89 	R1 = 7;
     90 	R6 = ROT R0 BY R1.L;
     91 	DBGA ( R6.L , 0x00e0 );
     92 	DBGA ( R6.H , 0x0000 );
     93 	R7 = CC;
     94 	DBGA ( R7.L , 0x0000 );
     95 
     96 // rot by zero
     97 // 8000 0001 -> 8000 0000
     98 	R7 = 1;
     99 	CC = R7;
    100 	R1 = 0;
    101 	R6 = ROT R0 BY R1.L;
    102 	DBGA ( R6.L , 0x0001 );
    103 	DBGA ( R6.H , 0x8000 );
    104 	R7 = CC;
    105 	DBGA ( R7.L , 0x0001 );
    106 
    107 // rot by 0b1100 0001 is the same as by 1 (mask 6 bits)
    108 // 8000 0001 -> 0000 0002 cc=1
    109 	R7 = 0;
    110 	CC = R7;
    111 	R1 = 0xc1 (X);
    112 	R6 = ROT R0 BY R1.L;
    113 	DBGA ( R6.L , 0x0002 );
    114 	DBGA ( R6.H , 0x0000 );
    115 	R7 = CC;
    116 	DBGA ( R7.L , 0x0001 );
    117 
    118 	pass
    119