| 60,6 → 60,8 |
|---|
| static uint8_t *backbuf; |
| static ioport8_t *ega_base; |
| |
| #define EMPTY_CHAR 0x0720 |
| |
| chardev_t ega_console; |
| |
| /* |
| 69,13 → 71,13 |
|---|
| { |
| if (ega_cursor < EGA_SCREEN) |
| return; |
| |
| |
| memmove((void *) videoram, (void *) (videoram + EGA_COLS * 2), |
| (EGA_SCREEN - EGA_COLS) * 2); |
| memmove((void *) backbuf, (void *) (backbuf + EGA_COLS * 2), |
| (EGA_SCREEN - EGA_COLS) * 2); |
| memsetw(videoram + (EGA_SCREEN - EGA_COLS) * 2, EGA_COLS, 0x0720); |
| memsetw(backbuf + (EGA_SCREEN - EGA_COLS) * 2, EGA_COLS, 0x0720); |
| memsetw(videoram + (EGA_SCREEN - EGA_COLS) * 2, EGA_COLS, EMPTY_CHAR); |
| memsetw(backbuf + (EGA_SCREEN - EGA_COLS) * 2, EGA_COLS, EMPTY_CHAR); |
| ega_cursor = ega_cursor - EGA_COLS; |
| } |
| |
| 103,9 → 105,16 |
|---|
| uint8_t lo = pio_read_8(ega_base + EGA_DATA_REG); |
| |
| ega_cursor = (hi << 8) | lo; |
| |
| if (ega_cursor >= EGA_SCREEN) |
| ega_cursor = 0; |
| |
| if ((ega_cursor % EGA_COLS) != 0) |
| ega_cursor = (ega_cursor + EGA_COLS) - ega_cursor % EGA_COLS; |
| |
| memsetw(videoram + ega_cursor * 2, EGA_SCREEN - ega_cursor, EMPTY_CHAR); |
| memsetw(backbuf + ega_cursor * 2, EGA_SCREEN - ega_cursor, EMPTY_CHAR); |
| |
| ega_check_cursor(); |
| ega_move_cursor(); |
| ega_show_cursor(); |
| 119,7 → 128,7 |
|---|
| videoram[ega_cursor * 2] = ch; |
| } |
| |
| static void ega_putchar(chardev_t *d __attribute__((unused)), const char ch, bool silent) |
| static void ega_putchar(chardev_t *dev __attribute__((unused)), const char ch, bool silent) |
| { |
| ipl_t ipl; |
| |