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* Creation Date: <2003/10/25 14:07:17 samuel>
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* Time-stamp: <2004/08/28 17:48:19 stepan>
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* Copyright (C) 2003, 2004 Samuel Rydh (samuel@ibrium.se)
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* Copyright (C) 2003, 2004 Stefan Reinauer
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* Based upon unix.c (from OpenBIOS):
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* Copyright (C) 2003 Patrick Mauritz, Stefan Reinauer
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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#include "libopenbios/bindings.h"
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#include "kernel/stack.h"
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#include "kernel/kernel.h"
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#include "libc/string.h"
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#define MEMORY_SIZE (256*1024) /* 256K ram for hosted system */
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#define DICTIONARY_SIZE (512*1024) /* 512K for the dictionary */
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/************************************************************************/
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/* F U N C T I O N S */
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/************************************************************************/
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forth_segv_handler( char *segv_addr )
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ucell addr = 0xdeadbeef;
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if( PC >= (ucell) dict && PC <= (ucell) dict + dicthead )
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printk("panic: segmentation violation at %x\n", (int)segv_addr);
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printk("dict=0x%x here=0x%x(dict+0x%x) pc=0x%x(dict+0x%x)\n",
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(int)dict, (int)(dict + dicthead), dicthead,
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PC, PC - (ucell) dict);
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printk("dstackcnt=%d rstackcnt=%d instruction=%x\n",
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dstackcnt, rstackcnt, addr);
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* allocate memory and prepare engine for memory management.
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memory = malloc(MEMORY_SIZE);
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panic("panic: not enough memory on host system.\n");
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/* we push start and end of memory to the stack
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* so that it can be used by the forth word QUIT
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* to initialize the memory allocator
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PUSH( (ucell)memory );
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PUSH( (ucell)memory + MEMORY_SIZE );
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initialize_forth( void )
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dict = malloc(DICTIONARY_SIZE);
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load_dictionary( forth_dictionary, sizeof(forth_dictionary) );
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PUSH_xt( bind_noname_func(arch_of_init) );
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fword("PREPOST-initializer");
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PC = (ucell)findword("initialize-of");