107 lines
1.4 KiB
C
107 lines
1.4 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include "tfv_utils.h"
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#include "gr-sim.h"
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#include "tfv_zp.h"
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int repeat_until_keypressed(void) {
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int ch;
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while(1) {
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ch=grsim_input();
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if (ch!=0) break;
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usleep(10000);
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}
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return ch;
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}
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int select_menu(int x, int y, int num, char **items) {
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int result=0;
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int ch,i;
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while(1) {
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for(i=0;i<num;i++) {
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htab(x);
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vtab(y+i);
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move_cursor();
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if (i==result) {
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print_inverse("--> ");
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}
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else {
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print(" ");
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}
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print(items[i]);
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}
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page_flip();
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ch=repeat_until_keypressed();
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if (ch=='\r') break;
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if (ch==' ') break;
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if (ch==APPLE_RIGHT) result++;
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if (ch==APPLE_DOWN) result++;
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if (ch==APPLE_LEFT) result--;
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if (ch==APPLE_UP) result--;
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if (result>=num) result=num-1;
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if (result<0) result=0;
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}
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return result;
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}
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void apple_memset(unsigned char *ptr, int value, int length) {
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A=value;
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X=length;
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Y=0;
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while(X>0) {
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ptr[Y]=A;
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Y++;
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X--;
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}
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}
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void print_u8(unsigned char value) {
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char temp[4];
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sprintf(temp,"%d",value);
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basic_print(temp);
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}
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void print_byte(unsigned char value) {
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char temp[4];
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sprintf(temp,"%3d",value);
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temp[3]=0;
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print(temp);
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}
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void page_flip(void) {
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if (ram[DISP_PAGE]==0) {
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soft_switch(HISCR);
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ram[DISP_PAGE]=1;
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ram[DRAW_PAGE]=0x0;
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}
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else {
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soft_switch(LOWSCR);
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ram[DISP_PAGE]=0;
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ram[DRAW_PAGE]=0x4;
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}
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grsim_update();
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}
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