| #include <stdio.h> |
| #include <stdint.h> |
| #include "opcodes.h" |
| |
| #define BRASLCLOBBER "0","1","2","3","4","5","14", \ |
| "f0","f1","f2","f3","f4","f5","f6","f7","memory","cc" |
| |
| void inner_iter() { putchar('.'); } |
| void outer_iter() { putchar('+'); } |
| |
| static void |
| check_brcth(int m, int n) |
| { |
| unsigned long cnt = ((unsigned long) m << 32) | n; |
| |
| printf("brcth %d x %d (cnt=0x%lx): ", m, n, cnt); |
| fflush(stdout); |
| asm volatile("1: lr %[cnt],%[n]\n\t" |
| "2: brasl 14,inner_iter\n\t" |
| "brct %[cnt],2b\n\t" |
| "brasl 14,outer_iter\n\t" |
| ".insn ril,0xcc0600000000,%[cnt],1b\n\t" // BRCTH |
| : [cnt]"+r" (cnt) |
| : [n]"r" (n) |
| : BRASLCLOBBER); |
| printf(" (cnt=0x%lx)\n", cnt); |
| } |
| |
| #define DO_RISBXG(insn, _r1, _r2, i3, i4, i5) \ |
| ({ \ |
| register unsigned long r1 asm ("1") = _r1; \ |
| register unsigned long r2 asm ("2") = _r2; \ |
| asm volatile(insn(1,2, i3, i4, i5) \ |
| : "+d" (r1) \ |
| : "d" (r1), "d" (r2)); \ |
| printf(#insn " r1(==%16.16lx),r2(==%16.16lx),0x" #i3 ",0x" #i4 \ |
| ",0x" #i5 " = %16.16lx\n", _r1, _r2, r1); \ |
| }) |
| |
| /* Some "random" 64-bit numbers. */ |
| |
| #define VAL_A 0x3a41e0a2afde1559 |
| #define VAL_B 0x765487c11cd04ac4 |
| #define VAL_C 0xb9cd1bdd399bef32 |
| #define VAL_D 0xf8efadb884334ddd |
| |
| static void |
| check_risbxg(void) |
| { |
| /* Full copy low -> low */ |
| DO_RISBXG(RISBLG, VAL_A, VAL_B, 00, 1f, 00); |
| DO_RISBXG(RISBLG, VAL_B, VAL_A, 00, 9f, 00); |
| /* Full copy high -> low */ |
| DO_RISBXG(RISBLG, VAL_B, VAL_A, 00, 1f, 20); |
| DO_RISBXG(RISBLG, VAL_A, VAL_B, 00, 9f, 20); |
| /* Full copy high -> high */ |
| DO_RISBXG(RISBHG, VAL_C, VAL_D, 00, 1f, 00); |
| DO_RISBXG(RISBHG, VAL_D, VAL_C, 00, 9f, 00); |
| /* Full copy low -> high */ |
| DO_RISBXG(RISBHG, VAL_D, VAL_C, 00, 1f, 20); |
| DO_RISBXG(RISBHG, VAL_C, VAL_D, 00, 9f, 20); |
| /* Middle copy */ |
| DO_RISBXG(RISBLG, VAL_C, VAL_A, 0b, 13, 05); |
| DO_RISBXG(RISBLG, VAL_C, VAL_A, 0b, 93, 05); |
| DO_RISBXG(RISBHG, VAL_A, VAL_C, 03, 0c, 25); |
| DO_RISBXG(RISBHG, VAL_A, VAL_C, 03, 8c, 25); |
| /* "Outer" copy (start > end) */ |
| DO_RISBXG(RISBLG, VAL_B, VAL_D, 1d, 07, 0c); |
| DO_RISBXG(RISBLG, VAL_B, VAL_D, 1d, 87, 0c); |
| DO_RISBXG(RISBHG, VAL_D, VAL_B, 0c, 03, 25); |
| DO_RISBXG(RISBHG, VAL_D, VAL_B, 0c, 83, 25); |
| } |
| |
| /* Test high-word facility instructions. */ |
| |
| int main() |
| { |
| check_brcth(5, 3); |
| check_brcth(1, 30); |
| check_brcth(16, 1); |
| |
| check_risbxg(); |
| return 0; |
| } |