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* Merge branch 'master' of github.com:NaoPross/z80uPC into atlasleleraffa97@hotmail.it2017-06-197-6/+311
|\ | | | | | | Serial updates from NaoPross
| * fixed typo in usart.h and in docNao Pross2017-06-161-1/+1
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| * add port interface header, api still to implementNao Pross2017-06-103-25/+31
| | | | | | | | | | | | fix for bug in usart.c, in function usart_write() that checked the trasmission_empty register at the wrong time causing it to overwrite the buffer.
| * add serial interface and a few std library functionsNao Pross2017-06-027-90/+292
| | | | | | | | | | | | | | | | | | | | | | | | 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 Pross2017-05-024-5/+102
| | | | | | | | | | | | | | | | | | 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
* | Authentication sectionleleraffa97@hotmail.it2017-06-194-0/+80
| | | | | | | | Programs management
* | Boot loader structures (WORK IN PROGRESS)leleraffa97@hotmail.it2017-06-154-0/+194
|/ | | | Some Program manager structures, macros and functions (WORK IN PROGRESS)
* fix for sdcc makefileNao Pross2017-05-021-0/+2
| | | | | | 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).
* switch to sdccNao Pross2017-05-022-0/+19
- update of the makefile to use sdcc, since it is more popular and it's easier to insall on other computers - fix of crt0.s (old loader.asm) for the new compiler - change of the structure in the source code folder to separate betweeen libc and kernel code