8 files changed, 207 insertions, 0 deletions
diff --git a/sw-old/z80/libc/include/stdint.h b/sw-old/z80/libc/include/stdint.h
new file mode 100644
index 0000000..5e8caf3
--- /dev/null
+++ b/sw-old/z80/libc/include/stdint.h
@@ -0,0 +1,13 @@
+#ifndef __STDINT_H__
+#define __STDINT_H__
+
+typedef unsigned int                uint;
+
+typedef char                        int8_t;
+typedef unsigned char               uint8_t;
+typedef int                         int16_t;
+typedef unsigned int                uint16_t;
+typedef long int                    int32_t;
+typedef unsigned long int           uint32_t;
+
+#endif // __STDINT_H__
+\ No newline at end of file
diff --git a/sw-old/z80/libc/include/stdio.h b/sw-old/z80/libc/include/stdio.h
new file mode 100644
index 0000000..b31cdfd
--- /dev/null
+++ b/sw-old/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-old/z80/libc/include/stdlib.h b/sw-old/z80/libc/include/stdlib.h
new file mode 100644
index 0000000..c69f573
--- /dev/null
+++ b/sw-old/z80/libc/include/stdlib.h
@@ -0,0 +1,7 @@
+#ifndef __STDLIB_H__
+#define __STDLIB_H__
+
+#include "stdint.h"
+
+
+#endif // __STDLIB_H__
+\ No newline at end of file
diff --git a/sw-old/z80/libc/include/string.h b/sw-old/z80/libc/include/string.h
new file mode 100644
index 0000000..9c002e3
--- /dev/null
+++ b/sw-old/z80/libc/include/string.h
@@ -0,0 +1,12 @@
+#ifndef __STRING_H__
+#define __STRING_H__
+
+#include "types.h"
+
+void * memset(void *dest, const int8_t src, size_t n);
+
+void *memcpy(void *dest, const void *src, size_t n);
+
+int8_t memcmp(const void *s1, const void *s2, size_t n);
+
+#endif
diff --git a/sw-old/z80/libc/include/sysio.h b/sw-old/z80/libc/include/sysio.h
new file mode 100644
index 0000000..5d1f5ae
--- /dev/null
+++ b/sw-old/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
diff --git a/sw-old/z80/libc/include/types.h b/sw-old/z80/libc/include/types.h
new file mode 100644
index 0000000..a083bfe
--- /dev/null
+++ b/sw-old/z80/libc/include/types.h
@@ -0,0 +1,60 @@
+#ifndef __TYPES_H__
+#define __TYPES_H__
+
+/* only types from primitive types are defined in this file */ 
+
+typedef volatile unsigned char      register_t;
+
+typedef unsigned int                uint;
+
+typedef char                        int8_t;
+typedef unsigned char               uint8_t;
+typedef int                         int16_t;
+typedef unsigned int                uint16_t;
+typedef long int                    int32_t;
+typedef unsigned long int           uint32_t;
+
+typedef uint16_t                    size_t;
+typedef int16_t                     ssize_t;
+
+typedef uint8_t                     pid_t;
+typedef uint16_t                    ino_t;
+
+typedef uint8_t                     dev_t;
+typedef uint32_t                    devsize_t;
+typedef uint8_t                     fd_t;
+typedef uint16_t                    blk_t;
+typedef uint8_t                     user_t; 
+typedef struct {
+    uint8_t member[3];
+} uint24_t;
+
+typedef uint32_t                    fsize_t;
+
+typedef struct 
+{
+    dev_t   dev;    // device id, global in the fs
+    ino_t   inode;    // inode id relative to the volume
+
+} inode_t;
+
+typedef struct time_s
+{
+    struct
+    {
+        uint    minutes :6;
+        uint    hour    :5;
+
+    } time;
+
+    struct
+    {
+        uint    day     :5;
+        uint    month   :4;
+        uint    year    :12;
+
+    } date;
+
+} time_t;
+
+#endif
diff --git a/sw-old/z80/libc/stdio.c b/sw-old/z80/libc/stdio.c
new file mode 100644
index 0000000..c2548d6
--- /dev/null
+++ b/sw-old/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-old/z80/libc/string.c b/sw-old/z80/libc/string.c
new file mode 100644
index 0000000..57b3a7f
--- /dev/null
+++ b/sw-old/z80/libc/string.c
@@ -0,0 +1,37 @@
+#include "string.h"
+
+void *memset(void *dest, const int8_t src, size_t n) {
+
+    char *dp = (char *) dest;
+
+    while (n--)
+        *(dp++) = src;
+
+    return dest;
+}
+
+void *memcpy(void *dest, void *src, size_t n)
+{
+    char *dp = dest;
+    char *sp = src;
+
+    while (n--) {
+        *dp++ = *sp++;
+    }
+
+    return dest;
+}
+
+int8_t memcmp(void *s1, void *s2, size_t n)
+{
+    char *u1 = (char *) s1;
+    char *u2 = (char *) s2;
+
+    for ( ; n--; u1++, u2++) {
+
+        if (*u1 != *u2)
+            return u1 - u2;
+    }
+
+    return 0;
+}
+\ No newline at end of file