From 8a461a14c3ceaf42f1483abe51cda47ac785bfc9 Mon Sep 17 00:00:00 2001 From: Nao Pross Date: Tue, 2 May 2017 22:09:40 +0200 Subject: add serial device struct other changes: - change from main() to kmain() in crt0.s and kernel.c - new file devices.h to define all address locations for devices - new data type - register_t as volatile uint8_t for registers in devices - size_t from libc --- sw/z80/kernel/include/devices.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 sw/z80/kernel/include/devices.h (limited to 'sw/z80/kernel/include/devices.h') diff --git a/sw/z80/kernel/include/devices.h b/sw/z80/kernel/include/devices.h new file mode 100644 index 0000000..ea29065 --- /dev/null +++ b/sw/z80/kernel/include/devices.h @@ -0,0 +1,13 @@ +#ifndef __DEVICES_H__ +#define __DEVICES_H__ + +#define ADDR_DEV_ROM_L 0x0000 +#define ADDR_DEV_ROM_H 0x2000 + +#define ADDR_DEV_USART 0x4000 +#define ADDR_DEV_CTC +#define ADDR_DEV_PIO + +#define ADDR_DEV_RAM 0x8000 + +#endif -- cgit v1.2.1 From 4a7f45ee28ac0799ba1ca93fd1683f7858efc54a Mon Sep 17 00:00:00 2001 From: Nao Pross Date: Fri, 2 Jun 2017 16:22:26 +0200 Subject: add serial interface and a few std library functions changes in usart: - new functions to setup the serial comunication settings such as baudrate, parity and stop bits - init function with most common values - transmit and receive functions each with a wrapper to send data blocks changes in libc: - new file stdio.c with basic implementation of putch, printf still a prototype - new file string.c with memcpy() function --- sw/z80/kernel/include/devices.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'sw/z80/kernel/include/devices.h') diff --git a/sw/z80/kernel/include/devices.h b/sw/z80/kernel/include/devices.h index ea29065..e8c183f 100644 --- a/sw/z80/kernel/include/devices.h +++ b/sw/z80/kernel/include/devices.h @@ -4,9 +4,9 @@ #define ADDR_DEV_ROM_L 0x0000 #define ADDR_DEV_ROM_H 0x2000 -#define ADDR_DEV_USART 0x4000 -#define ADDR_DEV_CTC -#define ADDR_DEV_PIO +#define ADDR_DEV_USART 0x4000 +#define ADDR_DEV_CTC 0x4100 +#define ADDR_DEV_PIO 0x4200 #define ADDR_DEV_RAM 0x8000 -- cgit v1.2.1