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Diffstat (limited to 'sim/testsuite/bpf/mem.s')
| -rw-r--r-- | sim/testsuite/bpf/mem.s | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/sim/testsuite/bpf/mem.s b/sim/testsuite/bpf/mem.s new file mode 100644 index 0000000..f9c6a19 --- /dev/null +++ b/sim/testsuite/bpf/mem.s @@ -0,0 +1,56 @@ +# 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 |