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| author | Mistivia <i@mistivia.com> | 2024-12-07 18:02:04 +0800 |
|---|---|---|
| committer | Mistivia <i@mistivia.com> | 2024-12-07 18:10:12 +0800 |
| commit | 22b08dbf32e9c5de1f10c19897422168100fa639 (patch) | |
| tree | da09e02c8319917d96b0116600e905ebcbd5c0db /examples/fibo.asm | |
| parent | 24dc16285d6b35d6da4733ac95d5d401f1b6c7b0 (diff) | |
add README for exmaples
Diffstat (limited to 'examples/fibo.asm')
| -rw-r--r-- | examples/fibo.asm | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/examples/fibo.asm b/examples/fibo.asm index a1a3e82..7aa0cb9 100644 --- a/examples/fibo.asm +++ b/examples/fibo.asm @@ -1,13 +1,20 @@ - imm 40 + ;; fibo(30) + imm 30 fibo rel call + ;; pop arguments and push return value to stack pop rv + ;; call print_number (syscall number is 1) imm 1 syscall exit fibo: + ;; setup stack pointer and base pointer bp sp sbp + ;; get first argument imm 2 bpick + ;; if (x > 2) then imm 2 gt .else rel jz + ;; return fibo(x - 2) + fibo(x - 1) imm 2 bpick imm 1 sub fibo rel call @@ -19,6 +26,7 @@ fibo: srv .end rel jmp .else: + ;; else return 1 imm 1 srv .end rel jmp .end: |