diff options
Diffstat (limited to 'oldcurses.c')
| -rw-r--r-- | oldcurses.c | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/oldcurses.c b/oldcurses.c deleted file mode 100644 index c8702d5..0000000 --- a/oldcurses.c +++ /dev/null @@ -1,161 +0,0 @@ -/* curses wrappers. - The original code uses curses, cc65 uses conio, so I wrote this stuff - to map the curses calls to conio ones. - Later on, just replaced all the curses stuff (except clrtobot() and - clrtoeol()) with direct calls to conio. - Keeping this around in case it's useful for porting some other - curses app to cc65. */ - -/* original plan was to use time() or _systime(). It turns out that - these are not implemented on the Atari, and always return -1. - So, use the OS's countdown timer instead. - Anyone porting to another cc65 platform needs to rewrite this. - - TODO: rewrite in terms of clock() and CLOCKS_PER_SEC. Will make it - less atari-specific, plus auto-adjust for pal/ntsc. - - TODO: there is atari-specific stuff elsewhere in the code :( - */ - -static unsigned int tmout_jiffies = 0; - -/* -void timeout(unsigned int msec) { - if(msec > 0) - tmout_jiffies = (msec / 100) * 6; // TODO: should be 5 for PAL - else - tmout_jiffies = 0; -} -*/ - -/* set timer with interrupts disabled, to avoid race condition - where an interrupt happens between setting the high & low bytes. */ -void start_timer() { - __asm__("SEI"); - POKE(541, tmout_jiffies / 256); - POKE(540, tmout_jiffies % 256); - __asm__("CLI"); -} - -/* this getch() works like curses, except it always acts - like it's in cbreak mode. */ -int getch() { - int ret = -1; - - if(tmout_jiffies == 0) return cgetc(); - - start_timer(); - - do { - if(kbhit()) { - ret = cgetc(); - break; - } - } while (timer_running()); - - return ret; -} - -#define timer_running() (PEEK(541) || PEEK(540)) -#define timer_expired() (!timer_running()) - -int flushinp() { - POKE(764, 255); - return 0; -} - -void clrtobot() { - unsigned char rows, cols, y, oldx, oldy; - oldx = wherex(); - oldy = wherey(); - screensize(&cols, &rows); - cclear(cols - wherex()); /* leaves cursor at start of next line */ - for(y = wherey(); y < rows; y++) - cclearxy(0, y, cols); - gotoxy(oldx, oldy); -} - -/* TODO: rewrite in asm */ -void clrtobot() { - unsigned char rows, cols, y, oldx, oldy; - oldx = wherex(); - oldy = wherey(); - screensize(&cols, &rows); - cclear(cols - wherex()); /* leaves cursor at start of next line */ - for(y = wherey(); y < rows; y++) - cclearxy(0, y, cols); - gotoxy(oldx, oldy); -} - -/* TODO: rewrite in asm */ -void clrtoeol() { - unsigned char cols, rows, oldx, oldy; - oldx = wherex(); - oldy = wherey(); - screensize(&cols, &rows); - cclear(cols - wherex()); - gotoxy(oldx, oldy); -} - - -/* one-to-one mapping between some of the conio API and the curses one */ -#define clear() clrscr() -#define printw cprintf -#define curs_set(x) cursor(x) - -/* conio doesn't do deferred printing, refresh() is a no-op */ -#define refresh() - -/* we don't support cooked or raw mode, cbreak() is a no-op */ -#define cbreak() - -/* we don't support echo mode */ -#define noecho() - -/* curses move() takes args in the opposite order to gotoxy() */ -#define move(a, b) gotoxy(b, a) - -/* our attrset() only supports A_NORMAL and A_REVERSE, since - the Atari can only print normal and reverse video. */ -#define A_NORMAL 0 -#define A_REVERSE 1 -#define attrset(x) revers(x) - -/**** atari-specific stuff */ - -/* original plan was to use time() or _systime(). It turns out that - these are not implemented on the Atari, and always return -1. - So, use the OS's countdown timer instead. - Anyone porting to another cc65 platform needs to rewrite this. - - TODO: rewrite in terms of clock() and CLOCKS_PER_SEC. Will make it - less atari-specific, plus auto-adjust for pal/ntsc. - - TODO: there is atari-specific stuff elsewhere in the code :( - */ - -static unsigned int tmout_jiffies = 0; - -void timeout(unsigned int msec) { - if(msec > 0) - tmout_jiffies = (msec / 100) * 6; // TODO: should be 5 for PAL - else - tmout_jiffies = 0; -} - -/* set timer with interrupts disabled, to avoid race condition - where an interrupt happens between setting the high & low bytes. */ -void start_timer() { - __asm__("SEI"); - POKE(541, tmout_jiffies / 256); - POKE(540, tmout_jiffies % 256); - __asm__("CLI"); -} - -#define timer_running() (PEEK(541) || PEEK(540)) -#define timer_expired() (!timer_running()) - -int flushinp() { - POKE(764, 255); - return 0; -} |