diff options
Diffstat (limited to 'programs')
| -rw-r--r-- | programs/pos-check.s | 12 | ||||
| -rw-r--r-- | programs/scr-to-buf.s | 7 |
2 files changed, 19 insertions, 0 deletions
diff --git a/programs/pos-check.s b/programs/pos-check.s new file mode 100644 index 0000000..315147b --- /dev/null +++ b/programs/pos-check.s @@ -0,0 +1,12 @@ +cmd_clr: + lda scr_row + cmp #23 + beq cmd_vwrap + inc scr_row + jmp cmd_clr_end +cmd_vwrap: + jsl rset_row +cmd_clr_end: + jsl update_pos + lda #0 + rtl diff --git a/programs/scr-to-buf.s b/programs/scr-to-buf.s new file mode 100644 index 0000000..1787dc3 --- /dev/null +++ b/programs/scr-to-buf.s @@ -0,0 +1,7 @@ +scr_to_buf: + tax + mul #80 + adc scr_col + tay + txa + rtl |