mirror of
https://github.com/DavidBuchanan314/6502-emu.git
synced 2024-10-04 10:56:00 +00:00
27 lines
354 B
C
27 lines
354 B
C
#define CTRL_ADDR 0xA000
|
|
#define DATA_ADDR 0xA001
|
|
|
|
struct UartStatusBits{
|
|
int RDRF:1; // bit 0
|
|
int TDRE:1;
|
|
int DCD:1;
|
|
int CTS:1;
|
|
int FE:1;
|
|
int OVRN:1;
|
|
int PE:1;
|
|
int IRQ:1; // bit 7
|
|
};
|
|
|
|
union UartStatusReg {
|
|
struct UartStatusBits bits;
|
|
uint8_t byte;
|
|
};
|
|
|
|
union UartStatusReg uart_SR;
|
|
|
|
uint8_t incoming_char;
|
|
|
|
void init_uart();
|
|
|
|
void step_uart();
|