diff options
| author | Duncan Smith | 2010-06-12 20:43:38 -0700 |
|---|---|---|
| committer | Duncan Smith | 2010-06-12 20:43:38 -0700 |
| commit | 209e61d7d73f51de361d507da1ce41166122a33a (patch) | |
| tree | cf6b54958887a051c0c018d10f07401804b7be62 /ports.asm | |
| parent | c924d8477261d9bf09a12d6d2f18c3a0175deed2 (diff) | |
More instructions added, stubs created for IO operation.
Diffstat (limited to 'ports.asm')
| -rw-r--r-- | ports.asm | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/ports.asm b/ports.asm new file mode 100644 index 0000000..4ca60f7 --- /dev/null +++ b/ports.asm @@ -0,0 +1,9 @@ + ;; Routines to process OUT and IN instructions. This is the + ;; bit that's unique to TI calculators. + + ;; Port is in d0, byte is in d1 +port_in: + rts + +port_out: + rts |