diff options
Diffstat (limited to 'debug/programs/step.S')
| -rw-r--r-- | debug/programs/step.S | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/debug/programs/step.S b/debug/programs/step.S index 49f82d6..6601548 100644 --- a/debug/programs/step.S +++ b/debug/programs/step.S @@ -3,15 +3,22 @@ .global main main: - li t0, 5 // 0 - beq zero, zero, one // 0x4 - nop // 0x8 + la t0, trap_entry // 0, 4 + csrw mtvec, t0 // 0x8 + + li t0, 5 // 0xc + beq zero, zero, one // 0x10 + nop // 0x14 one: - beq zero, t0, one // 0xc - jal two // 0x10 + beq zero, t0, one // 0x18 + jal two // 0x1c three: - j three // 0x14 + .word 0 // 0x20 + nop // 0x24 two: - ret // 0x18 + ret // 0x28 + +trap_entry: + j trap_entry // 0x2c |