lpsantil
lpsantil
/ pcode.c
Created
March 15, 2016 00:31
— forked from r-lyeh-archived/pcode.c
pcode interpreter
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| /* | |
| P-code for PL/0 machine | |
| [ref] https://en.wikipedia.org/wiki/P-code_machine | |
| [ref] http://blackmesatech.com/2011/12/pl0/pl0.xhtml | |
| The PL/0 virtual machine was originally specified by Nicklaus Wirth in his book | |
| Algorithms + Data Structures = Programs; it's used as the target machine for a | |
| PL/0 compiler. |
lpsantil
/ preprocessor_fun.h
Last active
August 29, 2015 14:27
— forked from aras-p/preprocessor_fun.h
Things to commit just before leaving your job
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| // Just before switching jobs: | |
| // Add one of these. | |
| // Preferably into the same commit where you do a large merge. | |
| // | |
| // This started as a tweet with a joke of "C++ pro-tip: #define private public", | |
| // and then it quickly escalated into more and more evil suggestions. | |
| // I've tried to capture interesting suggestions here. | |
| // | |
| // Contributors: @r2d2rigo, @joeldevahl, @msinilo, @_Humus_, | |
| // @YuriyODonnell, @rygorous, @cmuratori, @mike_acton, @grumpygiant, |
lpsantil
/ portable_endian.h
Last active
August 29, 2015 14:27
— forked from panzi/portable_endian.h
This provides the endian conversion functions form endian.h on Windows, Linux, *BSD, and Mac OS X. You still need to use -std=gnu99 instead of -std=c99 for gcc. The functions might actually be macros. Functions: htobe16, htole16, be16toh, le16toh, htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh. License: I hereby put "port…
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| // "License": Public Domain | |
| // I, Mathias Panzenböck, place this file hereby into the public domain. Use it at your own risk for whatever you like. | |
| // In case there are jurisdictions that don't support putting things in the public domain you can also consider it to | |
| // be "dual licensed" under the BSD, MIT and Apache licenses, if you want to. This code is trivial anyway. Consider it | |
| // an example on how to get the endian conversion functions on different platforms. | |
| #ifndef PORTABLE_ENDIAN_H__ | |
| #define PORTABLE_ENDIAN_H__ | |
| #if (defined(_WIN16) || defined(_WIN32) || defined(_WIN64)) && !defined(__WINDOWS__) |
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| ; src/boot/boot.asm | |
| ; Bootloader to load kernel, switch to 32-bit protected mode and execute kernel | |
| [BITS 16] ; 16-bit real mode | |
| [ORG 0x7C00] ; Loaded into memory at 0x7C00 | |
| MOV [bootDrive], DL ; Store DL (boot drive number) in memory | |
| MOV BP, 0x9000 ; Move Base Pointer in free memory space | |
| MOV SP, BP ; Move Stack Pointer to base of stack |
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