diff options
Diffstat (limited to 'sim/testsuite/arm/misaligned1.ms')
| -rw-r--r-- | sim/testsuite/arm/misaligned1.ms | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/sim/testsuite/arm/misaligned1.ms b/sim/testsuite/arm/misaligned1.ms new file mode 100644 index 0000000..69fda47 --- /dev/null +++ b/sim/testsuite/arm/misaligned1.ms @@ -0,0 +1,61 @@ +# Test LDR instructions with offsets misaligned by 1 byte. +# mach(): all + + .macro invalid +# This is "undefined" but it's not properly decoded yet. + .word 0x07ffffff +# This is stc which isn't recognized yet. + stc 0,cr0,[r0] + .endm + + .global _start +_start: +# Run some simple insns to confirm the engine is at least working. + nop + +# Skip over output text. + bl do_test + +pass: + .asciz "pass\n" + .p2align 2 + +do_test: + mov r4, r14 + bl continue +word1: + .word 0x5555 +continue: + ldr r6, [r14, #1] + ldr r7, word2 + cmp r6, r7 + # Failed. + bne done + +output_next: +# Output a character (in arm mode). + mov r0,#3 + mov r1,r4 + swi #0x123456 + +# Load next character, see if done. + add r4,r4,#1 + sub r3,r3,r3 + ldrb r5,[r4,r3] + teq r5,#0 + bne output_next + +done: + mov r0,#0x18 + ldr r1,exit_code + swi #0x123456 + +# If that fails, try to die with an invalid insn. + invalid + +exit_code: + .word 0x20026 + .word 0xFFFFFFFF +word2: + .word 0x55000055 + .word 0xFFFFFFFF |