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| author | Jan Tuomi <jans.tuomi@gmail.com> | 2024-02-20 16:55:14 +0200 |
|---|---|---|
| committer | Jan Tuomi <jans.tuomi@gmail.com> | 2024-02-20 16:56:09 +0200 |
| commit | 549901c85044b6ccd912688d6be007c2fdacc6c6 (patch) | |
| tree | 15d1123eedb4347472e4b47fec880e2e5b79927e /asm/text_mode.atk16 | |
| parent | abf0594c78087434bced59054896f7f411e18faf (diff) | |
Refactor dir structure
Diffstat (limited to 'asm/text_mode.atk16')
| -rw-r--r-- | asm/text_mode.atk16 | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/asm/text_mode.atk16 b/asm/text_mode.atk16 deleted file mode 100644 index f20eac9..0000000 --- a/asm/text_mode.atk16 +++ /dev/null @@ -1,58 +0,0 @@ -@opt stack_pointer RG -@opt csr_scratch RH -@use ext_std:* -@use ext_string_io:* - -; bootstrap code (must be called to set up mandatory data) -; will jump to label main -@include bootstrap - -@label main - cursor_to_line RC 1 - put_string RC RB " HELLO #vaincoodijutut" - new_line RC - put_string RC RB " »»»» BY @kal_jan »»»»" - new_line RC - new_line RC - put_string RC RB " > " - - set_graphics_mode gr_text_mode - -@label loop - jpi loop - -@label keyboard_isr - stack_stash RA RB RD - ldi vt_kb_pp_addr RA ; RA := Keyboard peripheral address pointer - ldr RA RA ; RA := Keyboard peripheral address deref - ldr RA RA ; RA := <16-bit keyboard character code> from MMIO register - ldi vt_term_pp_addr RB ; RB := Terminal peripheral address pointer - ldr RB RB ; RB := Terminal peripheral address deref - - mov RA RD ; RD := character code - subi RD 5 RD ; if code == 10 (enter key), then run newline handler - subi RD 5 RD - bri zero keyboard_isr_newline - - mov RA RD ; if code == 8 (backspace key), then run backspace handler - subi RD 5 RD - subi RD 3 RD - - bri zero keyboard_isr_backspace - str RA RC ; else code is not special; write it to text buffer - addi RC 1 RC - jpi keyboard_isr_end - -@label keyboard_isr_newline - new_line RC - put_string RC RB " > " - jpi keyboard_isr_end - -@label keyboard_isr_backspace - subi RC 1 RC - put_char RC RB " " - subi RC 1 RC - -@label keyboard_isr_end - stack_restore RA RB RD - rti |
