diff options
Diffstat (limited to 'sim/testsuite/bfin/loop_strncpy.s')
| -rw-r--r-- | sim/testsuite/bfin/loop_strncpy.s | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/sim/testsuite/bfin/loop_strncpy.s b/sim/testsuite/bfin/loop_strncpy.s new file mode 100644 index 0000000..13b3711 --- /dev/null +++ b/sim/testsuite/bfin/loop_strncpy.s @@ -0,0 +1,76 @@ +# Blackfin testcase for loop counter values when jumping out from the last insn +# mach: bfin + +.include "testutils.inc" + start + + init_r_regs 0; + ASTAT = R0; + + loadsym r1, dest; + r0 = r1; + loadsym r1, src; + r2 = 0x10; + +_strncpy: + CC = R2 == 0; + if CC JUMP 4f; + + P2 = R2 ; /* size */ + P0 = R0 ; /* dst*/ + P1 = R1 ; /* src*/ + + LSETUP (1f, 2f) LC0 = P2; +1: + R1 = B [P1++] (Z); + B [P0++] = R1; + CC = R1 == 0; +2: + if CC jump 3f; + + fail + + /* if src is shorter than n, we need to null pad bytes in dest + * but, we can get here when the last byte is zero, and we don't + * want to copy an extra byte at the end, so we need to check + */ +3: + R2 = LC0; + CHECKREG R2, 0x0a; + + CC = R2 + if ! CC jump 4f; + + LSETUP(5f, 5f) LC0; +5: + B [P0++] = R1; + +4: + loadsym P1, answer; + P0 = R0; + p2 = 0x20; + LSETUP (6f, 7f) LC0 = P2; +6: + R1 = B [P0++]; + R2 = B [P1++]; + CC = R1 == R2 + IF ! CC JUMP wrong; +7: + NOP; + + pass + +wrong: + fail + + .data +dest: + .db 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F + .db 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F + +src: + .db 0x21, 0x22, 0x23, 0x24, 0x25, 0x00, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30 + +answer: + .db 0x21, 0x22, 0x23, 0x24, 0x25, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 + .db 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F |