-/*
+/*
* RGB2R-C128-Kassenprogramm
- * (c) 2007-2008 phil_fry, sECuRE, sur5r
+ * © 2007-2009 phil_fry, sECuRE, sur5r
* See LICENSE for license information
*
*/
-#define _IS_KASSE
#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
#include <string.h>
#include <cbm.h>
+#include <c128.h>
+#include <6502.h>
#include "general.h"
#include "config.h"
#include "kasse.h"
#include "credit_manager.h"
#include "c128time.h"
+#include "print.h"
+#include "version.h"
+#include "vdc_patch_charset.h"
+#include "globals.h"
// drucker 4 oder 5
// graphic 4,0,10
-/* NOTE: undocumented function which scratches files
- We need to use this function because linking unistd.h
- makes our program break at runtime.
- */
-unsigned char __fastcall__ _sysremove(const char *name);
-
-static void sane_exit() {
- save_items();
- save_credits();
- exit(1);
+void print_item(BYTE i) {
+ char profit[EUR_FORMAT_MINLEN + 1];
+ if (format_euro(profit, sizeof(profit), status.status[i].price) == NULL) {
+ cprintf("Preis %ld konnte nicht umgerechnet werden\r\n",
+ status.status[i].price);
+ exit(1);
+ }
+ textcolor(TC_YELLOW);
+ cprintf("%2d", i);
+ textcolor(TC_LIGHT_GRAY);
+ cprintf(": %-" xstr(MAX_ITEM_NAME_LENGTH) "s \xDD%s, %3dx ",
+ status.status[i].item_name, profit, status.status[i].times_sold);
}
/* Hauptbildschirm ausgeben */
-static void print_screen() {
- BYTE i = 0;
- char *time = get_time();
- char profit[10];
- clrscr();
- if (format_euro(profit, 10, money) == NULL) {
- cprintf("Einnahme %ld konnte nicht umgerechnet werden\r\n", money);
- exit(1);
- }
- cprintf("C128-Kassenprogramm (phil_fry, sECuRE, sur5r)\r\
-\r\nUhrzeit: %s (wird nicht aktualisiert)\r\
-Eingenommen: %s, Verkauft: %ld Flaschen, Drucken: %s\r\n\r\n",
- time, profit, items_sold, (printing == 1 ? "ein" : "aus"));
- for (; i < status.num_items; ++i)
- cprintf("Eintrag %x: %s (%d Cents, %d mal verkauft)\r\n",
- i, status.status[i].item_name, status.status[i].price, status.status[i].times_sold);
- cprintf("\r\nBefehle: s) Daten sichern d) Drucken umschalten\r\
-g) Guthabenverwaltung z) Zeit setzen\r\
-f) Freitext verkaufen q) Beenden\r\n");
-}
+static void print_screen(void) {
+ BYTE i = 0;
+ char profit[EUR_FORMAT_MINLEN + 1];
+ clrscr();
+ if (format_euro(profit, sizeof(profit), money) == NULL) {
+ cprintf("Einnahme %ld konnte nicht umgerechnet werden\r\n", money);
+ profit[0] = '\0';
+ }
+ textcolor(TC_CYAN);
+ /* fill whole line with cyan, so color bits are set up for the clock */
+ cprintf("%-80s", "C128-Kasse (phil_fry, sECuRE, sur5r, mxf) " GV);
+ textcolor(TC_LIGHT_GRAY);
+ cprintf("\r\n\r\n"
+ "Ertrag: %s (%ld Artikel); Drucken: %s\r\n",
+ profit, items_sold, (printing == 1 ? "ein" : "aus"));
+ textcolor(TC_LIGHT_GRAY);
+ cprintf(" \xB0"
+ "\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xB2"
+ "\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xB2"
+ "\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xB2"
+ "\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xAE"
+ "\r\n");
+ for (; i < min(status.num_items, 15); ++i) {
-static void log_file(const char *s) {
- /* A log-entry has usually 50 bytes, so we take 64 bytes.
- Because files are wrapped (log.0, log.1, ...) every 100
- lines, we don't need more than 100 * 64 bytes. */
- char *buffer = malloc(sizeof(char) * 64 * 100);
- char filename[8];
- char read = 0;
- unsigned int c;
- if (buffer == NULL) {
- cprintf("No memory available\n");
- }
- buffer[0] = '\0';
- if (((++log_lines_written) % 100) == 0)
- log_num++;
- sprintf(filename, "log-%d", log_num);
- /* Don't read log if there were no lines written before */
- if (log_lines_written != 1) {
- if ((c = cbm_open((BYTE)8, (BYTE)8, (BYTE)0, filename)) != 0) {
- c128_perror(c, "cbm_open(log)");
- sane_exit();
- }
- read = cbm_read((BYTE)8, buffer, sizeof(char) * 64 * 100);
- cbm_close((BYTE)8);
- _sysremove(filename);
- }
- if ((c = cbm_open((BYTE)8, (BYTE)8, (BYTE)1, filename)) != 0) {
- c128_perror(c, "cbm_open(log)");
- sane_exit();
- }
- /* TODO: read < 0? */
- strcpy(buffer+read, s);
- c = cbm_write((BYTE)8, buffer, read+strlen(s));
- if (c != (read+strlen(s))) {
- cprintf("Could not save logfile (wrote %d bytes, wanted %d bytes), please make sure the floppy is not full!\n", c, (read+strlen(s)));
- sane_exit();
- }
- cbm_close((BYTE)8);
- free(buffer);
-}
+ cprintf(" \xDD");
+ print_item(i);
+ cprintf("\xDD");
+
+ /* if we have more than 15 items, use the second column */
+ if ((i + 15) < status.num_items) {
+ print_item(i + 15);
+ cprintf("\xDD");
+ } else {
+ cprintf(" \xDD \xDD");
+ }
-static char retry_or_quit() {
- char *c;
- do {
- cprintf("\r\nr)etry or q)uit?\r\n");
- c = get_input();
- } while ((*c != 'r') && (*c != 'q'));
- return *c;
+ cprintf("\r\n");
+ }
+ cprintf(" \xAD"
+ "\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xB1"
+ "\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xB1"
+ "\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xB1"
+ "\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xC0\xBD"
+ "\r\n");
+ textcolor(TC_YELLOW);
+ cprintf(" s");
+ textcolor(TC_LIGHT_GRAY);
+ cprintf(") Daten sichern ");
+ textcolor(TC_YELLOW);
+ cprintf("g");
+ textcolor(TC_LIGHT_GRAY);
+ cprintf(") Guthabenverwaltung\r\n");
+ textcolor(TC_YELLOW);
+ cprintf(" z");
+ textcolor(TC_LIGHT_GRAY);
+ cprintf(") Zeit setzen ");
+ textcolor(TC_YELLOW);
+ cprintf("f");
+ textcolor(TC_LIGHT_GRAY);
+ cprintf(") Freitext verkaufen ");
+ textcolor(TC_YELLOW);
+ cprintf("q");
+ textcolor(TC_LIGHT_GRAY);
+ cprintf(") Beenden\r\n");
}
-/* Prints a line and logs it to file */
-static void print_log(char *name, int item_price, int einheiten, char *nickname) {
- BYTE c;
- char *time = get_time();
- char price[10];
- /* Format:
- Transaction-ID (Anzahl verkaufter Einträge, inklusive des zu druckenden!)
- Uhrzeit
- Eintragname (= Getränk)
- Preis (in Cents)
- Anzahl
- Nickname (falls es vom Guthaben abgezogen wird)
- */
- if (format_euro(price, 10, item_price) == NULL) {
- cprintf("Preis %d konnte nicht umgerechnet werden\r\n", item_price);
- exit(1);
- }
-
- sprintf(print_buffer, "%c[%lu] %s - %s - %s - %d - an %s\r", 17,
- items_sold, time, name, price,
- einheiten, (*nickname != '\0' ? nickname : "Unbekannt"));
-RETRY:
- c = cbm_open((BYTE)4, (BYTE)4, (BYTE)0, NULL);
- if (c != 0) {
- c128_perror(c, "cbm_open(printer)");
- if (retry_or_quit() == 'q')
- sane_exit();
-
- goto RETRY;
- }
- c = cbm_write((BYTE)4, print_buffer, strlen(print_buffer));
- if (c != strlen(print_buffer)) {
- c128_perror(c, "write(printer)");
- if (retry_or_quit() == 'q') {
- save_items();
- save_credits();
- exit(1);
- }
- goto RETRY;
- }
- cbm_close((BYTE)4);
- log_file(print_buffer);
+/*
+ * Prints a line and logs it to file. Every line can be at max 80 characters.
+ *
+ */
+static void print_log(char *name, int32_t item_price, int16_t einheiten,
+ char *nickname, char *rest) {
+ char *time = get_time();
+ char *ptr = NULL;
+ uint8_t n;
+ char price[EUR_FORMAT_MINLEN + 1];
+ if (format_euro(price, sizeof(price), item_price) == NULL) {
+ cprintf("Preis %d konnte nicht umgerechnet werden\r\n", item_price);
+ exit(1);
+ }
+
+ /* clang-format off */
+ n = snprintf(print_buffer, sizeof(print_buffer),
+ /* enable lower case letters -- 1 */
+ "%c"
+ /* Transaction-ID (Anzahl verkaufter Einträge, inklusive des zu druckenden!)
+ -- 6-stellig */
+ "[%3u] "
+ /* Uhrzeit -- 8-stellig + 3 */
+ "%8s - "
+ /* Eintragname (= Getränk) -- 9-stellig + 3 */
+ "%-" xstr(MAX_ITEM_NAME_LENGTH) "s - "
+ /* Preis (in Cents) -- 8-stellig + 3 */
+ "%" xstr(EUR_FORMAT_MINLEN) "s - "
+ /* restguthaben (8-stellig) + 3 */
+ "%" xstr(EUR_FORMAT_MINLEN) "s - "
+ /* Anzahl -- 2-stellig + 3 */
+ "%2d - "
+ /* Nickname (falls es vom Guthaben abgezogen wird) -- 10-stellig + 4 */
+ "an %" xstr(NICKNAME_MAX_LEN)"s\r",
+ 17, status.transaction_id, time, name, price, rest, einheiten,
+ (*nickname != '\0' ? nickname : "Unbekannt"));
+ /* clang-format on */
+
+ /* TODO: teach the EUR sign to the printer.
+ * Until then, we just overwrite it with "E" */
+ ptr = print_buffer;
+ while (ptr = strchr(ptr, EURSYM[0])) {
+ *ptr = 'E';
+ }
+
+ if (n > sizeof(print_buffer)) {
+ cprintf("\r\nprint_log(): print_buffer overflowed!\r\n"
+ "Wanted to write %d bytes\r\n%s\r\n",
+ n, print_buffer);
+ exit(1);
+ }
+
+ status.transaction_id++;
+ print_the_buffer();
}
/* dialog which is called for each bought item */
-BYTE buy(char *name, unsigned int price) {
- int negative = 1;
- char entered[5] = {'1', 0, 0, 0, 0};
- BYTE i = 0, matches = 0;
- BYTE c, nickname_len;
- int einheiten;
- char *input;
- char nickname[11];
- struct credits_t *credit;
-
- cprintf("Wieviel Einheiten \"%s\"? [1] \r\n", name);
- while (1) {
- c = getchar();
- if (c == 13)
- break;
- else if (c == 27) {
- cprintf("Kauf abgebrochen, druecke RETURN...\r\n");
- get_input();
- return 1;
- } else if (c == '-' && i == 0)
- negative = -1;
- else if (c > 47 && c < 58)
- entered[i++] = c;
- }
- einheiten = atoi(entered) * negative;
-
- toggle_videomode();
- cprintf("%dx %s fuer ", einheiten, name);
- toggle_videomode();
-
- cprintf("\r\nAuf ein Guthaben kaufen? Wenn ja, Nickname eingeben:\r\n");
- input = get_input();
- strncpy(nickname, input, 11);
- if (*nickname != '\0') {
- toggle_videomode();
- cprintf("%s\r\n", nickname);
- toggle_videomode();
- }
-
- if (nickname != NULL && *nickname != '\0' && *nickname != 32) {
- nickname_len = strlen(nickname);
- /* go through credits and remove the amount of money or set nickname
- * to NULL if no such credit could be found */
- credit = find_credit(nickname);
- if (credit != NULL) {
- if ((signed int)credit->credit < ((signed int)price * einheiten)) {
- cprintf("Sorry, %s hat nicht genug Geld :-(\r\n", nickname);
- get_input();
- return 0;
- }
- /* substract money */
- credit->credit -= (price * einheiten);
- cprintf("\r\nVerbleibendes Guthaben fuer %s: %d Cents. Druecke RETURN...\r\n",
- nickname, credit->credit);
- toggle_videomode();
- cprintf("\r\nDein verbleibendes Guthaben betraegt %d Cents.\r\n", credit->credit);
- toggle_videomode();
- get_input();
- matches++;
- } else {
- cprintf("\r\nNickname nicht gefunden in der Guthabenverwaltung! Abbruch, druecke RETURN...\r\n");
- get_input();
- return 0;
- }
- } else {
- /* Ensure that nickname is NULL if it's empty because it's used in print_log */
- *nickname = '\0';
- }
-
- money += price * einheiten;
- items_sold += einheiten;
- if (printing == 1)
- print_log(name, price, einheiten, nickname);
-
- return einheiten;
+static signed int buy(char *name, int32_t price) {
+ BYTE matches = 0;
+ BYTE c, nickname_len;
+ int16_t einheiten;
+ char nickname[NICKNAME_MAX_LEN + 1];
+ char rest[EUR_FORMAT_MINLEN + 1];
+ struct credits_t *credit;
+
+ clrscr();
+ cprintf("Wieviel Einheiten \"%s\"? [1] \r\n", name);
+
+ einheiten = cget_number(1);
+
+ if (einheiten > 100 || einheiten < -100 || einheiten == 0) {
+ cprintf("\r\nEinheit nicht in [-100, 100] oder 0, Abbruch, dr" uUML "cke "
+ "RETURN...\r\n");
+ cget_return();
+ return 1;
+ }
+
+ cprintf("\r\nAuf ein Guthaben kaufen? Wenn ja, Nickname eingeben:\r\n");
+ nickname_len = cget_nickname(nickname, sizeof(nickname));
+
+ if (nickname_len && *nickname != '\0' && *nickname != PETSCII_SP) {
+ /* go through credits and remove the amount of money or set nickname
+ * to NULL if no such credit could be found */
+ credit = find_credit(nickname);
+ if (credit != NULL) {
+ while ((int32_t)credit->credit < (price * einheiten)) {
+ if (format_euro(rest, sizeof(rest), credit->credit) == NULL) {
+ cprintf("Preis %d konnte nicht umgerechnet werden\r\n",
+ credit->credit);
+ exit(1);
+ }
+ cprintf(
+ "\r\n%s hat nicht genug Geld (%s). e) einzahlen a) abbruch \r\n",
+ nickname, rest);
+ c = cgetc();
+ if (c == 'e') {
+ deposit_credit(nickname);
+ } else {
+ return 0;
+ }
+ }
+ /* substract money */
+ credit->credit -= (price * einheiten);
+
+ if (format_euro(rest, sizeof(rest), credit->credit) == NULL) {
+ cprintf("Preis %d konnte nicht umgerechnet werden\r\n", credit->credit);
+ exit(1);
+ }
+
+ textcolor(TC_LIGHT_GREEN);
+ cprintf("\r\nVerbleibendes Guthaben f" uUML "r %s: %s. Dr" uUML
+ "cke RETURN...\r\n",
+ nickname, rest);
+ textcolor(TC_LIGHT_GRAY);
+ cget_return();
+ matches++;
+ } else {
+ textcolor(TC_LIGHT_RED);
+ cprintf("\r\nNickname nicht gefunden in der Guthabenverwaltung! Abbruch, "
+ "dr" uUML "cke RETURN...\r\n");
+ textcolor(TC_LIGHT_GRAY);
+ cget_return();
+ return 0;
+ }
+ }
+
+ money += price * einheiten;
+ items_sold += einheiten;
+ if (printing == 1)
+ print_log(name, price, einheiten, nickname, rest);
+
+ return einheiten;
}
void buy_stock(BYTE n) {
- if (n >= status.num_items || status.status[n].item_name == NULL) {
- cprintf("FEHLER: Diese Einheit existiert nicht.\r\n");
- get_input();
- return;
- }
+ if (n >= status.num_items || status.status[n].item_name == NULL) {
+ cprintf("FEHLER: Diese Einheit existiert nicht.\r\n");
+ cget_return();
+ return;
+ }
- status.status[n].times_sold += buy(status.status[n].item_name, status.status[n].price);
+ status.status[n].times_sold +=
+ buy(status.status[n].item_name, status.status[n].price);
}
-void buy_custom() {
- BYTE c = 0, i = 0;
- int negative = 1;
- char entered[5] = {'1', 0, 0, 0, 0};
- char *input, name[10];
- int price;
-
- cprintf("\r\nWas soll gekauft werden?\r\n");
- input = get_input();
- strncpy(name, input, 10);
- if (*name == '\0')
- return;
-
- cprintf("\r\nWie teuer ist \"%s\" (in cents)?\r\n", name);
- while (1) {
- c = getchar();
- if (c == 13)
- break;
- else if (c == 27) {
- cprintf("Kauf abgebrochen, druecke RETURN...\r\n");
- get_input();
- return;
- } else if (c == '-' && i == 0)
- negative = -1;
- else if (c > 47 && c < 58)
- entered[i++] = c;
- }
- price = atoi(entered) * negative;
-
- cprintf("\r\n");
-
- buy(name, price);
+void buy_custom(void) {
+ char name[MAX_ITEM_NAME_LENGTH + 1];
+ int price;
+
+ clrscr();
+ cprintf("\r\nWas soll gekauft werden?\r\n");
+ if (cgetn_input(name, sizeof(name)) == 0)
+ return;
+
+ cprintf("\r\nWie teuer ist \"%s\" (in cents)?\r\n", name);
+
+ price = cget_number(0);
+
+ if (price == 0) {
+ cprintf("Kauf abgebrochen, dr" uUML "cke RETURN...\r\n");
+ cget_return();
+ return;
+ }
+
+ buy(name, price);
}
-void set_time_interactive() {
- BYTE part[3] = {'0', '0', '\0'};
- BYTE tp1, tp2, tp3;
- char *time_input, *time;
- cprintf("Gib die aktuelle Uhrzeit ein (Format HHMMSS):\r\n");
- time_input = get_input();
- part[0] = time_input[0];
- part[1] = time_input[1];
- tp1 = atoi(part);
- part[0] = time_input[2];
- part[1] = time_input[3];
- tp2 = atoi(part);
- part[0] = time_input[4];
- part[1] = time_input[5];
- tp3 = atoi(part);
- set_time(tp1, tp2, tp3);
-
- time = get_time();
- cprintf("Zeit gesetzt: %s\r\n", time);
+void set_time_interactive(void) {
+ char part[3] = {'\0', '\0', '\0'};
+ uint8_t day, tp1, tp2, tp3;
+ char *time_input, *time;
+ cprintf("Gib den aktuellen Tag des Events und Uhrzeit ein\r\n"
+ "Format DHHMMSS, 0-indexiert, z.B. 0174259 für \"erster Tag um "
+ "17:42:59\":\r\n");
+ time_input = get_input();
+ part[0] = time_input[0];
+ day = atoi(part);
+ part[0] = time_input[1];
+ part[1] = time_input[2];
+ tp1 = atoi(part);
+ part[0] = time_input[3];
+ part[1] = time_input[4];
+ tp2 = atoi(part);
+ part[0] = time_input[5];
+ part[1] = time_input[6];
+ tp3 = atoi(part);
+ set_time(day, tp1, tp2, tp3);
+
+ time = get_time();
+ cprintf("\r\nZeit gesetzt: %s\r\n", time);
}
-int main() {
- char *c;
-
- if (VIDEOMODE == 40)
- toggle_videomode();
- /* Set time initially, c128 doesn't know it */
- set_time_interactive();
-
- POKE(216, 255);
-
- /* Load configuration */
- load_config();
- cprintf("got %d logfiles\r\n", log_num);
-
- /* Load items (= drinks) */
- load_items();
- /* Load credits */
- load_credits();
- while (1) {
- print_screen();
- c = get_input();
- /* ...display dialogs eventually */
- if (*c > 47 && *c < 58) {
- buy_stock((*c) - 48);
- toggle_videomode();
- clrscr();
- toggle_videomode();
- } else if (*c == 'f') {
- buy_custom();
- toggle_videomode();
- clrscr();
- toggle_videomode();
- } else if (*c == 's') {
- save_items();
- save_credits();
- cprintf("Statefile/Creditfile gesichert, druecke RETURN...\r\n");
- get_input();
- } else if (*c == 'd') {
- /* enable/disable printing */
- printing = (printing == 1 ? 0 : 1);
- cprintf("Drucken ist nun %s, druecke RETURN...\r\n",
- (printing == 1 ? "eingeschaltet" : "ausgeschaltet"));
- get_input();
- } else if (*c == 'g') {
- credit_manager();
- } else if (*c == 'z') {
- set_time_interactive();
- } else if (*c == 'q')
- break;
- }
- cprintf("BYEBYE\r\n");
+int main(void) {
+ char *c;
+ char *time;
+
+ printing = 1;
+ /* initialize daytime global, start the CIA TOD */
+ set_time(0, 0, 0, 0);
+ kasse_menu = MENU_UNDEFINED;
+
+ videomode(VIDEOMODE_80x25);
+
+ /* clock CPU at double the speed (a whopping 2 Mhz!) */
+ fast();
+
+ /* Manipulate the VDC with IRQs turned off.
+ * KERNALs default IRQ handler will also try to read the VDC status
+ * register, which could interfere with our code trying to read it.
+ */
+ SEI();
+ vdc_patch_charset();
+ CLI();
+
+ clrscr();
+
+ install_daytime_irq();
+
+ /* Allocate logging buffer memory */
+ init_log();
+
+ /* Set time initially, c128 doesn't know it */
+ set_time_interactive();
+
+ /* disable interrupt driven VIC screen editor */
+ POKE(0xD8, 255);
+
+ /* Load configuration */
+ load_config();
+
+ /* Load items (= drinks) */
+ load_items();
+ /* Load credits */
+ load_credits();
+
+ time = get_time();
+ sprintf(print_buffer, "%c----------------------------------------------------"
+ "----------------------------\r",
+ 17);
+ print_the_buffer();
+ sprintf(print_buffer, "%cC128-Kasse Version " GV "\r", 17);
+ print_the_buffer();
+
+ sprintf(print_buffer,
+ "%cKasse gestartet um %s. Nutze logfile log-%u, offset %d.\r", 17,
+ time, log_num, log_heap_offset);
+ print_the_buffer();
+
+ print_header();
+
+ while (1) {
+ print_screen();
+ kasse_menu = MENU_MAIN;
+ c = get_input();
+ kasse_menu = MENU_UNDEFINED;
+ /* ...display dialogs eventually */
+ if (*c >= PETSCII_0 && *c <= PETSCII_9) {
+ /* if the input starts with a digit, we will interpret it as a number
+ * for the item to be sold */
+ buy_stock(atoi(c));
+ } else if (*c == 'f') {
+ buy_custom();
+ } else if (*c == 's') {
+ cprintf("\r\nsaving items.. ");
+ save_items();
+ cprintf("ok\r\nsaving credits.. ");
+ save_credits();
+ cprintf("ok\r\nflushing log.. ");
+ log_flush();
+ cprintf("ok\r\nStatefile/Creditfile/Log gesichert, dr" uUML
+ "cke RETURN...\r\n");
+ cget_return();
+ } else if (*c == 'g') {
+ credit_manager();
+ } else if (*c == 'z') {
+ set_time_interactive();
+ } else if (*c == 'q')
+ break;
+ }
+ clrscr();
+ cprintf("\r\nBYEBYE\r\n");
+
+ return 0;
}