diff options
Diffstat (limited to 'resources/asm')
| -rw-r--r-- | resources/asm/monitor.atk16 | 57 |
1 files changed, 36 insertions, 21 deletions
diff --git a/resources/asm/monitor.atk16 b/resources/asm/monitor.atk16 index f0026ed..5c48182 100644 --- a/resources/asm/monitor.atk16 +++ b/resources/asm/monitor.atk16 @@ -14,39 +14,45 @@ @label main ; initialize global variables + ; BEGIN cursor_p := text_mem ldi cursor_p RA ldr RA RA ldi vt_text_mem RB ldr RB RB - str RB RA ; cursor_p := text_mem + str RB RA + ; END ; use memset to clear the text buffer + ; BEGIN memset(text_mem, 0, text_buffer_size) ldi vt_text_mem RA ; RA := text buffer address pointer ldr RA RA ; RA := text buffer address - ldi text_buffer_size RB ; RB := pointer to 1024 - ldr RB RB ; RB := 1024 + ldi text_buffer_size RB ; RB := pointer to text_buffer_size + ldr RB RB ; RB := text_buffer_size ldi 0 RC ; RC := 0 calli memset + ; END set_graphics_mode gr_text_mode - calli cursor_newline - ldi 65 RA - calli cursor_put_char + calli newline + + ; BEGIN put_string(title_string) + ldi title_string RA + calli put_string + ; END -; @data test_char ${ord('A')} -; ldi test_char RA ; RA := 'A' pointer -; ldr RA RA ; RA := 'A' -; calli log_term_char + calli newline - ; ldi hello_string RA ; RA := hello string pointer - ; calli log_term_string + ; BEGIN put_string(subtitle_string) + ldi subtitle_string RA + calli put_string + ; END ; loop forever @label loop jpi loop -@label cursor_newline +@label newline ; move cursor to the beginning of the next line ; parameters: none ; returns: none @@ -64,7 +70,7 @@ stack_restore RA RB return -@label cursor_put_char +@label put_char ; put a character at the current cursor position ; parameters: RA = character to put ; returns: none @@ -81,15 +87,24 @@ stack_restore RB RC return -@label cursor_put_string +@label put_string ; put a string at the current cursor position ; parameters: RA = string_p ; returns: none - stack_stash RB RC - ldi cursor_p RB - ldr RB RB - ldr RB RC + stack_stash RA RB RC + ldr RA RB ; RB := string length + addi RA 1 RC ; RC := pointer to first character +@label put_string_loop + subi RB 0 RB ; exit if RB has been decremented to 0 + bri zero put_string_done ; i.e. no more characters to put + + ldr RC RA ; RA := character to put + calli put_char - ; TODO: implement - return
\ No newline at end of file + inc RC + subi RB 1 RB + jpi put_string_loop +@label put_string_done + stack_restore RA RB RC + return |