mem.s revision 1.1
1 # mach: bpf 2 # output: pass\nexit 0 (0x0)\n 3 ;;; mem.s 4 ;;; Tests for BPF memory (ldx, stx, ..) instructions in simulator 5 6 .include "testutils.inc" 7 8 .text 9 .global main 10 .type main, @function 11 main: 12 lddw %r1, 0x1234deadbeef5678 13 mov %r2, 0x1000 14 15 ;; basic store/load check 16 stxb [%r2+0], %r1 17 stxh [%r2+2], %r1 18 stxw [%r2+4], %r1 19 stxdw [%r2+8], %r1 20 21 stb [%r2+16], 0x5a 22 sth [%r2+18], 0xcafe 23 stw [%r2+20], 0xbeefface 24 stdw [%r2+24], 0x7eadbeef 25 26 ldxb %r1, [%r2+16] 27 fail_ne %r1, 0x5a 28 ldxh %r1, [%r2+18] 29 fail_ne %r1, 0xffffffffffffcafe 30 ldxw %r1, [%r2+20] 31 fail_ne %r1, 0xffffffffbeefface 32 ldxdw %r1, [%r2+24] 33 fail_ne %r1, 0x7eadbeef 34 35 ldxb %r3, [%r2+0] 36 fail_ne %r3, 0x78 37 ldxh %r3, [%r2+2] 38 fail_ne %r3, 0x5678 39 ldxw %r3, [%r2+4] 40 fail_ne %r3, 0xffffffffbeef5678 41 ldxdw %r3, [%r2+8] 42 fail_ne %r3, 0x1234deadbeef5678 43 44 ldxw %r4, [%r2+10] 45 fail_ne %r4, 0xffffffffdeadbeef 46 47 ;; negative offsets 48 add %r2, 16 49 ldxh %r5, [%r2+-14] 50 fail_ne %r5, 0x5678 51 ldxw %r5, [%r2+-12] 52 fail_ne %r5, 0xffffffffbeef5678 53 ldxdw %r5, [%r2+-8] 54 fail_ne %r5, 0x1234deadbeef5678 55 56 pass 57
Indexes created Tue Mar 03 05:31:39 UTC 2026