#include #define get_cc() \ ({ \ char __cc; \ /* don't use IPM to better test spechelpers */ \ asm volatile( "brc 8,1f\n\t" \ "brc 4,2f\n\t" \ "brc 2,3f\n\t" \ "brc 1,4f\n\t" \ "mvi %0,4\n\t" \ "j 0f\n\t" \ "1: mvi %0,0\n\t" \ "j 0f\n\t" \ "2: mvi %0,1\n\t" \ "j 0f\n\t" \ "3: mvi %0,2\n\t" \ "j 0f\n\t" \ "4: mvi %0,3\n\t" \ "j 0f\n\t" \ "0: /* nop */ brc 0,0\n\t" \ : "=m" (__cc) : : "memory"); \ __cc; \ }) void check_cc(int value, int cc) { if (cc != value) { printf("wrong cc: "); if (value == 0) printf("expected 0 "); if (value == 1) printf("expected 1 "); if (value == 2) printf("expected 2 "); if (value == 3) printf("expected 3 "); if (cc == 0) printf("got 0"); if (cc == 1) printf("got 1"); if (cc == 2) printf("got 2"); if (cc == 3) printf("got 3"); } else { printf("OK"); } printf("\n"); } void tmll(void) { unsigned long v; /* test #1: value is zero, all bits selected */ v = 0; asm volatile( "tmll %[v],0xFFFF\n\t" : : [v] "d"(v) : "cc"); check_cc(0, get_cc()); /* test #2: value is all-ones, mask is zero */ v = 0xFFFF; asm volatile( "tmll %[v],0\n\t" : : [v] "d"(v) : "cc"); check_cc(0, get_cc()); /* test #3: selected bits are 0 */ v = 0x0F; asm volatile( "tmll %[v],0xf0\n\t" : : [v] "d"(v) : "cc"); check_cc(0, get_cc()); /* test #4: selected bits are all 1 */ v = 0xF0; asm volatile( "tmll %[v],0x70\n\t" : : [v] "d"(v) : "cc"); check_cc(3, get_cc()); /* test #5: selected bits are mixed, leftmost bit is 0 */ v = 0x0F; asm volatile( "tmll %[v],0x81\n\t" : : [v] "d"(v) : "cc"); check_cc(1, get_cc()); /* test #6: selected bits are mixed, leftmost bit is 1 */ v = 0xF0; asm volatile( "tmll %[v],0x81\n\t" : : [v] "d"(v) : "cc"); check_cc(2, get_cc()); } int main(void) { tmll(); return 0; }