diff --git a/sim/testsuite/bpf/alu.s b/sim/testsuite/bpf/alu.s
index 4dc37b1f01a..acba7b86cc6 100644
--- a/sim/testsuite/bpf/alu.s
+++ b/sim/testsuite/bpf/alu.s
@@ -59,7 +59,7 @@ main:
     fail_ne     %r2, 0x0000000050000000
 
     ;; or
-    or          %r2, 0xdeadbeef
+    or          %r2, -559038737         ; 0xdeadbeef
     fail_ne     %r2, 0xffffffffdeadbeef ; 0xdeadbeef gets sign extended
     lddw        %r1, 0xdead00000000beef
     lddw        %r2, 0x0000123456780000
@@ -67,7 +67,7 @@ main:
     fail_ne     %r1, 0xdead12345678beef
 
     ;; lsh
-    mov         %r1, 0xdeadbeef
+    mov         %r1, -559038737         ; 0xdeadbeef
     lsh         %r1, 11
     fail_ne     %r1, 0xfffffef56df77800 ; because deadbeef gets sign ext.
     mov         %r2, 21
diff --git a/sim/testsuite/bpf/alu32.s b/sim/testsuite/bpf/alu32.s
index e8d5062476c..d129f0fa7e0 100644
--- a/sim/testsuite/bpf/alu32.s
+++ b/sim/testsuite/bpf/alu32.s
@@ -58,7 +58,7 @@ main:
     lsh32       %r1, 4          ; r1 <<= 4 (r1 = 0xf0)
     mov32       %r2, 24         ; r2 = 24
     lsh32       %r1, %r2
-    fail_ne32   %r1, 0xf0000000
+    fail_ne32   %r1, -268435456 ; 0xf0000000
 
     ;; rsh (right logical shift)
     rsh32       %r1, 2
@@ -67,7 +67,7 @@ main:
 
     ;; arsh (right arithmetic shift)
     arsh32      %r1, 1
-    or32        %r1, 0x80000000
+    or32        %r1, -2147483648 ; 0x80000000
     mov32       %r2, 3
     arsh32      %r1, %r2
     fail_ne     %r1, 0x00000000F0000003
@@ -92,7 +92,7 @@ main:
     ;; xor
     xor32       %r1, %r2
     fail_ne32   %r1, 4
-    xor32       %r1, 0xF000000F
+    xor32       %r1, -268435441 ; 0xF000000F
     fail_ne     %r1, 0xF000000B ; Note: check for (bad) sign-extend
     xor32       %r1, %r1
     fail_ne     %r1, 0
diff --git a/sim/testsuite/bpf/ldabs.s b/sim/testsuite/bpf/ldabs.s
index ae777f1cf54..f54b8054477 100644
--- a/sim/testsuite/bpf/ldabs.s
+++ b/sim/testsuite/bpf/ldabs.s
@@ -34,13 +34,13 @@ main:
     ;; Write the value 0x7eadbeef into memory at 0x2004
     ;; i.e. offset 4 within the data buffer pointed to by
     ;; ((struct sk_buff *)r6)->data
-    stw         [%r6+0x1004], 0xdeadbeef
+    stw         [%r6+0x1004], 0x0eadbeef
 
     ;; Now load data[4] into r0 using the ldabsw instruction
     ldabsw      0x4
 
     ;; ...and compare to what we expect
-    fail_ne32   %r0, 0xdeadbeef
+    fail_ne32   %r0, 0x0eadbeef
 
     ;; Repeat for a half-word (2-bytes)
     sth         [%r6+0x1008], 0x1234
@@ -62,10 +62,10 @@ main:
 
     ;; Now, we do the same for the indirect loads
     mov         %r7, 0x100
-    stw         [%r6+0x1100], 0xfeedbeef
+    stw         [%r6+0x1100], 0x0eedbeef
 
     ldindw      %r7, 0x0
-    fail_ne32   %r0, 0xfeedbeef
+    fail_ne32   %r0, 0x0eedbeef
 
     ;; half-word
     sth         [%r6+0x1104], 0x6789
diff --git a/sim/testsuite/bpf/mem.s b/sim/testsuite/bpf/mem.s
index f9c6a193eab..26931ae5fba 100644
--- a/sim/testsuite/bpf/mem.s
+++ b/sim/testsuite/bpf/mem.s
@@ -20,7 +20,7 @@ main:
 
     stb         [%r2+16], 0x5a
     sth         [%r2+18], 0xcafe
-    stw         [%r2+20], 0xbeefface
+    stw         [%r2+20], -1091568946 ; 0xbeefface
     stdw        [%r2+24], 0x7eadbeef
 
     ldxb        %r1, [%r2+16]
diff --git a/sim/testsuite/bpf/mov.s b/sim/testsuite/bpf/mov.s
index 6665450468c..f7585c1dcb2 100644
--- a/sim/testsuite/bpf/mov.s
+++ b/sim/testsuite/bpf/mov.s
@@ -30,7 +30,7 @@ main:
     mov         %r2, -1
     fail_ne     %r2, 0xffffffffffffffff
 
-    mov         %r3, 0x80000000
+    mov         %r3, -2147483648 ; 0x80000000
 
     ;; should NOT sign extend
     mov32       %r4, %r3