diff --git a/applications/terminal/main.asm b/applications/terminal/main.asm index 91a269c..bac675e 100644 --- a/applications/terminal/main.asm +++ b/applications/terminal/main.asm @@ -11,6 +11,11 @@ mov r7, 0 call new_window + ; fill the window with the "black" color + mov r0, [colors] + mov r1, window_struct + call fill_window + ; start an instance of sh.fxf call get_unused_task_id mov.8 [shell_task_id], r0 diff --git a/applications/terminal/text.asm b/applications/terminal/text.asm index 700bcc0..49599f6 100644 --- a/applications/terminal/text.asm +++ b/applications/terminal/text.asm @@ -3,13 +3,11 @@ const TERMINAL_X_SIZE: 40 const TERMINAL_Y_SIZE: 25 -const TEXT_COLOR: 0xFFFFFFFF -const BACKGROUND_COLOR: 0xFF000000 - -const FILL_TERM: 0xF0 +const FILL_TERM: 0xF0 const MOVE_CURSOR: 0xF1 +const SET_COLOR: 0xF2 const REDRAW_LINE: 0xFE -const REDRAW: 0xFF +const REDRAW: 0xFF ; print a string to the terminal ; inputs: @@ -51,6 +49,7 @@ print_character_to_terminal_allow: push r0 push r1 push r2 + push r3 cmp.8 r0, 0 ; null ifz jmp print_character_to_terminal_end @@ -71,15 +70,23 @@ print_character_to_terminal_allow: cmp.8 [terminal_y], TERMINAL_Y_SIZE ifgteq call scroll_terminal - ; calculate coords for character... + ; calculate coords for character movz.8 r1, [terminal_x] movz.8 r2, [terminal_y] mul r2, TERMINAL_X_SIZE add r1, r2 add r1, terminal_text_buf - ; ...and print!! + ; calculate coords for color + movz.8 r2, [terminal_x] + movz.8 r3, [terminal_y] + mul r3, TERMINAL_X_SIZE + add r2, r3 + add r2, terminal_color_buf + + ; and print!! mov.8 [r1], r0 + mov.8 [r2], [terminal_current_color_attribute] inc.8 [terminal_x] jmp print_character_to_terminal_end print_character_to_terminal_cr: @@ -101,6 +108,7 @@ print_character_to_terminal_bs: cmp.8 [terminal_x], 0 ifnz dec.8 [terminal_x] print_character_to_terminal_end: + pop r3 pop r2 pop r1 pop r0 @@ -140,18 +148,27 @@ handle_control_character: cmp.8 [terminal_control_char], REDRAW ifz jmp handle_control_character_redraw + ; set color + cmp.8 [terminal_control_char], SET_COLOR + ifz jmp handle_control_character_set_color + ret handle_control_character_fill_term: push r0 + push r1 push r31 mov r0, terminal_text_buf + mov r1, terminal_color_buf mov r31, 1000 handle_control_character_fill_term_loop: mov.8 [r0], [terminal_control_parameter_1] + mov.8 [r1], [terminal_current_color_attribute] inc r0 + inc r1 loop handle_control_character_fill_term_loop call redraw_terminal pop r31 + pop r1 pop r0 ret handle_control_character_set_cursor_pos: @@ -165,6 +182,9 @@ handle_control_character_redraw_line: handle_control_character_redraw: call redraw_terminal ret +handle_control_character_set_color: + mov.8 [terminal_current_color_attribute], [terminal_control_parameter_1] + ret ; scroll the terminal ; inputs: @@ -177,6 +197,8 @@ scroll_terminal: push r2 push r31 + ; copy text buffer + ; source mov r0, terminal_text_buf add r0, TERMINAL_X_SIZE @@ -191,16 +213,36 @@ scroll_terminal: call copy_memory_words + ; copy color buffer + + ; source + mov r0, terminal_color_buf + add r0, TERMINAL_X_SIZE + + ; destination + mov r1, terminal_color_buf + + ; size + mov r2, TERMINAL_X_SIZE + mul r2, 24 + div r2, 4 + + call copy_memory_words + mov.8 [terminal_x], 0 mov.8 [terminal_y], 24 ; clear the last line mov r0, terminal_text_buf + mov r1, terminal_color_buf add r0, 960 ; 40 * 24 + add r1, 960 ; 40 * 24 mov r31, TERMINAL_X_SIZE scroll_terminal_clear_loop: mov.8 [r0], 0 + mov.8 [r1], [terminal_current_color_attribute] inc r0 + inc r1 loop scroll_terminal_clear_loop ; redraw the screen @@ -232,21 +274,18 @@ redraw_terminal: mov r5, r0 mov r0, terminal_text_buf - mov r1, 0 mov r2, 16 - mov r3, TEXT_COLOR - mov r4, BACKGROUND_COLOR mov r31, TERMINAL_Y_SIZE redraw_terminal_loop_y: push r31 mov r1, 0 mov r31, TERMINAL_X_SIZE redraw_terminal_loop_x: + call get_color push r0 movz.8 r0, [r0] call draw_font_tile_to_overlay - movz.8 r0, 8 - add r1, r0 + add r1, 8 pop r0 inc r0 loop redraw_terminal_loop_x @@ -293,18 +332,14 @@ redraw_terminal_line: mul r2, r1 add r2, 16 - mov r1, 0 - mov r3, TEXT_COLOR - mov r4, BACKGROUND_COLOR - mov r1, 0 mov r31, TERMINAL_X_SIZE redraw_terminal_line_loop_x: + call get_color push r0 movz.8 r0, [r0] call draw_font_tile_to_overlay - movz.8 r0, 8 - add r1, r0 + add r1, 8 pop r0 inc r0 loop redraw_terminal_line_loop_x @@ -319,9 +354,62 @@ redraw_terminal_line_loop_x: pop r0 ret +; get the text color at the specified position +; inputs: +; r1: X coordinate +; r2: Y coordinate +; outputs: +; r3: foreground color +; r4: background color +get_color: + push r1 + push r2 + + ; get the character buffer coords from the actual coords + sub r2, 16 + div r1, 8 + div r2, 16 + + ; get the color attribute at the specified position + mul r2, TERMINAL_X_SIZE + add r2, r1 + add r2, terminal_color_buf + movz.8 r2, [r2] + + ; get the foreground color + mov r3, r2 + srl r3, 4 + mul r3, 4 + add r3, colors + mov r3, [r3] + + ; get the background color + mov r4, r2 + and r4, 0x0F + mul r4, 4 + add r4, colors + mov r4, [r4] + + pop r2 + pop r1 + ret + +colors: + data.32 0xff2e1e1e ; black + data.32 0xffa88bf3 ; red + data.32 0xffa1e3a6 ; green + data.32 0xffafe2f9 ; yellow + data.32 0xfffab489 ; blue + data.32 0xffaca0eb ; magenta + data.32 0xffd5e294 ; cyan + data.32 0xfff4d6cd ; white + data.32 0x00000000 ; transparent + terminal_x: data.8 0 terminal_y: data.8 0 terminal_text_buf: data.fill 0, 1000 ; 40x25 = 1000 bytes +terminal_color_buf: data.fill 0x70, 1000 ; 40x25 = 1000 bytes +terminal_current_color_attribute: data.8 0x70 terminal_state: data.8 0 ; 0: normal, 1: awaiting first control parameter, 2: awaiting second control parameter terminal_control_char: data.8 0 terminal_control_parameter_1: data.8 0