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* libc memset, memcmpHEADmasterleleraffa97@hotmail.it2017-06-192-0/+30
| | | | | boot improved program allocation
* add serial interface and a few std library functionsNao Pross2017-06-024-0/+44
| | | | | | | | | | | | 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
* add serial device structNao Pross2017-05-021-7/+0
| | | | | | | | | 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
* sysio.h libc interfaceleleraffa97@hotmail.it2017-05-021-0/+55
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* fix for sdcc makefileNao Pross2017-05-021-0/+7
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).