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* Filesystem struct orderleleraffa97@hotmail.it2017-08-231-21/+35
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* filesystem structure intro and docsNao Pross2017-08-015-12/+93
| | | | | | | | - new type pid_t and program management mechanism to make it easier to switch to a multitasking kernel - new memory related functions in memory.h to move, copy and manage pages - fix typos
* new structure for process management, structures to discussNao Pross2017-07-0410-337/+251
| | | | | | | | | | | | | | the idea behind kernel/include/progman.h was good but the implementation was very not unix-like, so I made a new file under kernel/include/process.h that will implement the same features other changes: - move usart register structs definitions outside of the device - remove old build files - delete boot.h and boot_loader.h (as they weren't used by anything) - change on makefile to build binary with `makebin` instead of `xxd` - new file memory.h to implement memory mapping and mmu control - new type `uint` in types.h
* Order and update of the structleleraffa97@hotmail.it2017-06-235-57/+144
| | | | | Separation of boot and login sections Improuved program manager system
* libc memset, memcmpHEADmasterleleraffa97@hotmail.it2017-06-191-1/+0
| | | | | boot improved program allocation
* Merge branch 'master' of github.com:NaoPross/z80uPC into atlasleleraffa97@hotmail.it2017-06-194-0/+199
|\ | | | | | | 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 Pross2017-06-101-5/+22
| | | | | | | | | | | | 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 Pross2017-06-024-88/+170
| | | | | | | | | | | | | | | | | | | | | | | | 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 Pross2017-05-023-0/+100
| | | | | | | | | | | | | | | | | | 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.it2017-06-192-0/+40
| | | | | | | | Programs management
* | Boot loader structures (WORK IN PROGRESS)leleraffa97@hotmail.it2017-06-152-0/+81
|/ | | | 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 Pross2017-05-021-0/+9
- 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