1 #include <stdint.h> 2 #include <stdio.h> 3 #include <string.h> 4 5 void 6 test(int64_t op1_init, int64_t op2_init, int64_t op3_init, int expected_cc) 7 { 8 register int64_t op1 asm("8") = op1_init; 9 register int64_t op3 asm("9") = op3_init; 10 11 int64_t op2 = op2_init; 12 int cc = 1 - expected_cc; 13 14 printf("before op1 = %#lx\n", op1); 15 printf("before op2 = %#lx\n", op2); 16 printf("before op3 = %#lx\n", op3); 17 18 __asm__ volatile ( 19 "csg 8,9,%1\n\t" 20 "ipm %0\n\t" 21 "srl %0,28\n\t" 22 : "=d" (cc), "+Q" (op2), "+d"(op1), "+d"(op3) 23 : 24 : "cc"); 25 26 printf("after op1 = %#lx\n", op1); 27 printf("after op2 = %#lx\n", op2); 28 printf("after op3 = %#lx\n", op3); 29 printf("cc = %d\n", cc); 30 31 if (cc != expected_cc) { 32 printf("condition code is incorrect\n"); 33 } 34 if (expected_cc == 0) { 35 if (op2 != op3) { 36 printf("operand #2 not updated\n"); 37 } 38 } else { 39 if (op1 != op2) { 40 printf("operand #1 not updated\n"); 41 } 42 } 43 } 44 45 int main () 46 { 47 test(0x1000000000000000ull, 0x1000000000000000ull, 0x1234567887654321ull, 0); 48 test(0x1000000000000000ull, 0x2000000000000000ull, 0x1234567887654321ull, 1); 49 50 return 0; 51 } 52
