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// ncurses.c
// Implements interface.h
// Provides an in-terminal interface to the emulator.
#include"interface.h"
#include"signetics.c"
#include<ncurses.h>
int TermX = 0;
int TermY = 0;
void TerminalInit()
{
initscr();
cbreak();
noecho();
curs_set(0);
TerminalShiftRegister = (byte*)malloc(960);
TerminalShiftRegisterPosition = TerminalShiftRegister;
TerminalShiftRegisterOffset = 0;
}
void TerminalClose()
{
free(TerminalShiftRegister);
curs_set(0);
endwin();
}
void TerminalInput(char n)
{
mvaddch(TermY,TermX,n);
*TerminalShiftRegisterPosition = n;
TerminalShiftRegisterPosition++;
if (TerminalShiftRegisterPosition >= (TerminalShiftRegister + 960))
TerminalShiftRegisterPosition = TerminalShiftRegister;
TermX++;
if (n == KEY_ENTER) {
TermY++;
}
if (TermX >= 40) {
TermX = 0;
TermY++;
}
if (TermY >= 24) {
TerminalShiftRegisterOffset += 40; // Discard first line
if (TerminalShiftRegisterOffset >= 960)
TerminalShiftRegisterOffset = TerminalShiftRegister;
byte *offset = TerminalShiftRegister + TerminalShiftRegisterOffset;
// For every position, fill with contents of the terminal shift register
for (int i = 0; i < 23; i++) {
for (int j = 0; j < 40; j++) {
if (offset >= (TerminalShiftRegister + 960))
offset -= 960;
mvaddch(i,j, *(offset));
offset++;
}}
TermY = 23;
TermX = 0;
// Clear bottom line.
mvwprintw(stdscr, TermY, TermX, " ");
}
mvaddch(TermY, TermX, '@' | A_BLINK);
}
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