40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
// Copyright 2022 Bradley D. Nelson
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#define IMMEDIATE 1
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#define SMUDGE 2
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#define BUILTIN_FORK 4
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#define BUILTIN_MARK 8
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typedef struct {
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cell_t *heap, **current, ***context;
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cell_t *latestxt, notfound;
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cell_t *heap_start;
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cell_t heap_size, stack_cells;
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const char *boot;
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cell_t boot_size;
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const char *tib;
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cell_t ntib, tin, state, base;
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int argc;
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char **argv;
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cell_t *(*runner)(cell_t *rp); // pointer to forth_run
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cell_t **throw_handler;
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// Layout not used by Forth.
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cell_t *rp; // spot to park main thread
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cell_t DOLIT_XT, DOFLIT_XT, DOEXIT_XT, YIELD_XT;
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void *DOCREATE_OP;
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const BUILTIN_WORD *builtins;
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} G_SYS;
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