diff options
Diffstat (limited to 'sim/testsuite/d10v-elf/t-dbt.s')
| -rw-r--r-- | sim/testsuite/d10v-elf/t-dbt.s | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/sim/testsuite/d10v-elf/t-dbt.s b/sim/testsuite/d10v-elf/t-dbt.s new file mode 100644 index 0000000..8c51847 --- /dev/null +++ b/sim/testsuite/d10v-elf/t-dbt.s @@ -0,0 +1,33 @@ +.include "t-macros.i" + + start + + PSW_BITS = PSW_DM + +;;; Blat our DMAP registers so that they point at on-chip imem + + ldi r2, MAP_INSN | 0xf + st r2, @(DMAP_REG,r0) + ldi r2, MAP_INSN + st r2, @(IMAP1_REG,r0) + +;;; Patch the interrupt vector's dbt entry with a jmp to success + + ldi r4, #trap + ldi r5, (VEC_DBT & DMAP_MASK) + DMAP_BASE + ld2w r2, @(0,r4) + st2w r2, @(0,r5) + ld2w r2, @(4,r4) + st2w r2, @(4,r5) + +test_dbt: + dbt -> nop + exit47 + +success: + checkpsw2 1 PSW_BITS + exit0 + + .data +trap: ldi r1, success@word + jmp r1 |