119 lines
2.3 KiB
C
119 lines
2.3 KiB
C
/* RETRO ------------------------------------------------------
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A personal, minimalistic forth
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Copyright (c) 2016 - 2019 Charles Childers
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---------------------------------------------------------- */
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <math.h>
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#include <sys/types.h>
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#ifndef IMAGEFUNCTIONS
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#define IMAGEFUNCTIONS
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#define TIB 1025
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#define D_OFFSET_LINK 0
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#define D_OFFSET_XT 1
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#define D_OFFSET_CLASS 2
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#define D_OFFSET_NAME 3
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#define CELL int32_t
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#define IMAGE_SIZE 524288 * 8
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#define STACK_DEPTH 4096
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#define ADDRESSES STACK_DEPTH * 3
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#ifdef MEM1024K
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#undef IMAGE_SIZE
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#undef STACK_DEPTH
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#undef ADDRESSES
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#define IMAGE_SIZE 242000
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#define STACK_DEPTH 128
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#define ADDRESSES 256
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#else
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#endif
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#ifdef MEM512K
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#undef IMAGE_SIZE
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#undef STACK_DEPTH
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#undef ADDRESSES
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#define IMAGE_SIZE 112500
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#define STACK_DEPTH 128
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#define ADDRESSES 256
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#else
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#endif
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#ifdef MEM256K
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#undef IMAGE_SIZE
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#undef STACK_DEPTH
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#undef ADDRESSES
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#define IMAGE_SIZE 48000
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#define STACK_DEPTH 128
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#define ADDRESSES 256
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#else
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#endif
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#ifdef MEM192K
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#undef IMAGE_SIZE
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#undef STACK_DEPTH
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#undef ADDRESSES
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#define IMAGE_SIZE 31500
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#define STACK_DEPTH 128
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#define ADDRESSES 256
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#else
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#endif
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#ifdef MEM128K
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#undef IMAGE_SIZE
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#undef STACK_DEPTH
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#undef ADDRESSES
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#define IMAGE_SIZE 24000
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#define STACK_DEPTH 128
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#define ADDRESSES 256
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#else
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#endif
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#ifdef MEM96K
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#undef IMAGE_SIZE
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#undef STACK_DEPTH
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#undef ADDRESSES
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#define IMAGE_SIZE 18000
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#define STACK_DEPTH 128
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#define ADDRESSES 256
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#else
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#endif
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extern CELL sp, rp, ip;
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extern CELL data[STACK_DEPTH];
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extern CELL address[ADDRESSES];
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extern CELL memory[IMAGE_SIZE + 1];
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#define TOS data[sp]
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#define NOS data[sp-1]
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#define TORS address[rp]
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extern CELL Dictionary;
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extern CELL NotFound;
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extern CELL Compiler;
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extern CELL interpret;
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CELL stack_pop();
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void stack_push(CELL value);
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CELL string_inject(char *str, CELL buffer);
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char *string_extract(CELL at);
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CELL d_link(CELL dt);
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CELL d_xt(CELL dt);
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CELL d_class(CELL dt);
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CELL d_name(CELL dt);
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CELL d_lookup(CELL Dictionary, char *name);
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CELL d_xt_for(char *Name, CELL Dictionary);
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void update_rx();
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void execute(CELL cell);
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void ngaProcessOpcode(CELL opcode);
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void ngaProcessPackedOpcodes(CELL opcode);
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int ngaValidatePackedOpcodes(CELL opcode);
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#endif
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