| #include <stdint.h> |
| #include <stdio.h> |
| #include <string.h> |
| |
| void |
| test(int64_t op1_init, int64_t op2_init, int64_t op3_init, int expected_cc) |
| { |
| register int64_t op1 asm("8") = op1_init; |
| register int64_t op3 asm("9") = op3_init; |
| |
| int64_t op2 = op2_init; |
| int cc = 1 - expected_cc; |
| |
| printf("before op1 = %#lx\n", op1); |
| printf("before op2 = %#lx\n", op2); |
| printf("before op3 = %#lx\n", op3); |
| |
| __asm__ volatile ( |
| "csg 8,9,%1\n\t" |
| "ipm %0\n\t" |
| "srl %0,28\n\t" |
| : "=d" (cc), "+Q" (op2), "+d"(op1), "+d"(op3) |
| : |
| : "cc"); |
| |
| printf("after op1 = %#lx\n", op1); |
| printf("after op2 = %#lx\n", op2); |
| printf("after op3 = %#lx\n", op3); |
| printf("cc = %d\n", cc); |
| |
| if (cc != expected_cc) { |
| printf("condition code is incorrect\n"); |
| } |
| if (expected_cc == 0) { |
| if (op2 != op3) { |
| printf("operand #2 not updated\n"); |
| } |
| } else { |
| if (op1 != op2) { |
| printf("operand #1 not updated\n"); |
| } |
| } |
| } |
| |
| int main () |
| { |
| test(0x1000000000000000ull, 0x1000000000000000ull, 0x1234567887654321ull, 0); |
| test(0x1000000000000000ull, 0x2000000000000000ull, 0x1234567887654321ull, 1); |
| |
| return 0; |
| } |