From 1ec8f14f03322e3fe1f56f4abcbc85f5c2934dfc Mon Sep 17 00:00:00 2001 From: Nao Pross Date: Tue, 2 May 2017 16:14:41 +0200 Subject: fix for sdcc makefile fix for the old makefile, because it could't compile more than one source file. new libc directory with mem.c to start implementing the standard C library (or at least the part we need). --- sw/z80/libc/mem.c | 7 +++++++ 1 file changed, 7 insertions(+) create mode 100644 sw/z80/libc/mem.c (limited to 'sw/z80/libc') diff --git a/sw/z80/libc/mem.c b/sw/z80/libc/mem.c new file mode 100644 index 0000000..667a752 --- /dev/null +++ b/sw/z80/libc/mem.c @@ -0,0 +1,7 @@ +#include "types.h" +#include "mem.h" + +void *malloc(size_t size) +{ + : +} -- cgit v1.2.1 From 100226618493b6a3c7da96048734d50f5011a01f Mon Sep 17 00:00:00 2001 From: "leleraffa97@hotmail.it" Date: Tue, 2 May 2017 18:11:33 +0200 Subject: sysio.h libc interface --- sw/z80/libc/include/sysio.h | 55 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 sw/z80/libc/include/sysio.h (limited to 'sw/z80/libc') diff --git a/sw/z80/libc/include/sysio.h b/sw/z80/libc/include/sysio.h new file mode 100644 index 0000000..5d1f5ae --- /dev/null +++ b/sw/z80/libc/include/sysio.h @@ -0,0 +1,55 @@ +#ifndef __SYSIO_H__ +#define __SYSIO_H__ + +#include "types.h" + +/* +* Memory management +*/ + +void * malloc(uint16_t size); +uint16_t malloc_size(void * address); +void free(void * address); + +/* +* File management +*/ + +#define F_WRITE "w" +#define F_READ "r" +#define F_BIN_WRITE "wb" +#define F_BIN_READ "rb" + +#define F_READ_CODE 0x0 +#define F_WRITE_CODE 0x1 +#define F_BIN_READ_CODE 0x2 +#define F_BIN_WRITE_CODE 0x3 + +#define F_PERM_READ 0x0 +#define F_PERM_WRITE 0x1 +#define F_PERM_RW 0x2 + +struct file { + + const char * path; + unsigned int mode:4; + unsigned int permission:4; +}; + +#define FILE struct file + +FILE * fopen(const char * path, const char * mode); +uint8_t fclose(FILE * file); + +// TODO: other functions + +/* +* Processes management +*/ + +#define PID uint16_t + +void exit(); // exit this program +void interrupt(PID) + +#endif \ No newline at end of file -- cgit v1.2.1 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/libc/mem.c | 7 ------- 1 file changed, 7 deletions(-) delete mode 100644 sw/z80/libc/mem.c (limited to 'sw/z80/libc') diff --git a/sw/z80/libc/mem.c b/sw/z80/libc/mem.c deleted file mode 100644 index 667a752..0000000 --- a/sw/z80/libc/mem.c +++ /dev/null @@ -1,7 +0,0 @@ -#include "types.h" -#include "mem.h" - -void *malloc(size_t size) -{ - : -} -- 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/libc/include/stdio.h | 11 +++++++++++ sw/z80/libc/include/string.h | 8 ++++++++ sw/z80/libc/stdio.c | 12 ++++++++++++ sw/z80/libc/string.c | 13 +++++++++++++ 4 files changed, 44 insertions(+) create mode 100644 sw/z80/libc/include/stdio.h create mode 100644 sw/z80/libc/include/string.h create mode 100644 sw/z80/libc/stdio.c create mode 100644 sw/z80/libc/string.c (limited to 'sw/z80/libc') diff --git a/sw/z80/libc/include/stdio.h b/sw/z80/libc/include/stdio.h new file mode 100644 index 0000000..b31cdfd --- /dev/null +++ b/sw/z80/libc/include/stdio.h @@ -0,0 +1,11 @@ +#ifndef __STDIO_H__ +#define __STDIO_H__ + +#include "types.h" + +extern uint8_t *stdout, stderr; + +void putc(char ch, uint8_t *buffer); +int printf(const char *fmt, ...); + +#endif diff --git a/sw/z80/libc/include/string.h b/sw/z80/libc/include/string.h new file mode 100644 index 0000000..f224c87 --- /dev/null +++ b/sw/z80/libc/include/string.h @@ -0,0 +1,8 @@ +#ifndef __STRING_H__ +#define __STRING_H__ + +#include "types.h" + +void *memcpy(void *dest, const void *src, size_t n); + +#endif diff --git a/sw/z80/libc/stdio.c b/sw/z80/libc/stdio.c new file mode 100644 index 0000000..c2548d6 --- /dev/null +++ b/sw/z80/libc/stdio.c @@ -0,0 +1,12 @@ +#include "stdio.h" + +void putc(char ch, uint8_t *buffer) +{ + *buffer = ch; + *(++buffer) = '\0'; +} + + +int printf(const char *fmt, ...) +{ +} diff --git a/sw/z80/libc/string.c b/sw/z80/libc/string.c new file mode 100644 index 0000000..fd6a7ff --- /dev/null +++ b/sw/z80/libc/string.c @@ -0,0 +1,13 @@ +#include "string.h" + +void *memcpy(void *dest, void *src, size_t n) +{ + char *dp = dest; + char *sp = src; + + while (n--) { + *dp++ = *sp++; + } + + return dest; +} -- cgit v1.2.1