/* *************************************************************** * * Z80 SDCC code example * * (c) 01.05.2017 Paolo Iocco * * * ***************************************************************** */ #include "lcd.h" __sfr __at 0x40 Ingresso; // IN/OUT port at 0x40 unsigned char a, b; const unsigned char welcome[] = "Hello world!"; void foo (void){ a++; } main() { a=0; b=0; lcd_init(); lcd_puts(welcome); foo(); while(1) { a++; b=Ingresso; } }