| # mach: bpf |
| # output: pass\nexit 0 (0x0)\n |
| ;;; mem.s |
| ;;; Tests for BPF memory (ldx, stx, ..) instructions in simulator |
| |
| .include "testutils.inc" |
| |
| .text |
| .global main |
| .type main, @function |
| main: |
| lddw %r1, 0x1234deadbeef5678 |
| mov %r2, 0x1000 |
| |
| ;; basic store/load check |
| stxb [%r2+0], %r1 |
| stxh [%r2+2], %r1 |
| stxw [%r2+4], %r1 |
| stxdw [%r2+8], %r1 |
| |
| stb [%r2+16], 0x5a |
| sth [%r2+18], 0xcafe |
| stw [%r2+20], 0xbeefface |
| stdw [%r2+24], 0x7eadbeef |
| |
| ldxb %r1, [%r2+16] |
| fail_ne %r1, 0x5a |
| ldxh %r1, [%r2+18] |
| fail_ne %r1, 0xffffffffffffcafe |
| ldxw %r1, [%r2+20] |
| fail_ne %r1, 0xffffffffbeefface |
| ldxdw %r1, [%r2+24] |
| fail_ne %r1, 0x7eadbeef |
| |
| ldxb %r3, [%r2+0] |
| fail_ne %r3, 0x78 |
| ldxh %r3, [%r2+2] |
| fail_ne %r3, 0x5678 |
| ldxw %r3, [%r2+4] |
| fail_ne %r3, 0xffffffffbeef5678 |
| ldxdw %r3, [%r2+8] |
| fail_ne %r3, 0x1234deadbeef5678 |
| |
| ldxw %r4, [%r2+10] |
| fail_ne %r4, 0xffffffffdeadbeef |
| |
| ;; negative offsets |
| add %r2, 16 |
| ldxh %r5, [%r2+-14] |
| fail_ne %r5, 0x5678 |
| ldxw %r5, [%r2+-12] |
| fail_ne %r5, 0xffffffffbeef5678 |
| ldxdw %r5, [%r2+-8] |
| fail_ne %r5, 0x1234deadbeef5678 |
| |
| pass |
