68 lines
2.0 KiB
C
68 lines
2.0 KiB
C
typedef struct _STACKS {
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/* current datastack top pointer */
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CELL data;
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/* saved contents of ds register on entry to callback */
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CELL data_save;
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/* memory region holding current datastack */
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BOUNDED_BLOCK *data_region;
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/* current callstack top pointer */
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CELL call;
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/* saved contents of cs register on entry to callback */
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CELL call_save;
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/* memory region holding current callstack */
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BOUNDED_BLOCK *call_region;
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/* saved callframe on entry to callback */
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CELL callframe;
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/* saved catchstack on entry to callback */
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CELL catch_save;
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/* saved cards_offset register on entry to callback */
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CELL cards_offset;
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/* error handler longjmp buffer */
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JMP_BUF toplevel;
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struct _STACKS *next;
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} STACKS;
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STACKS *stack_chain;
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CELL ds_size, cs_size;
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#define ds_bot ((CELL)(stack_chain->data_region->start))
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#define cs_bot ((CELL)(stack_chain->call_region->start))
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#define STACK_UNDERFLOW(stack,region) ((stack) + CELLS < (region)->start)
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#define STACK_OVERFLOW(stack,region) ((stack) + CELLS >= (region)->start + (region)->size)
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void reset_datastack(void);
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void reset_callstack(void);
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void fix_stacks(void);
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DLLEXPORT void save_stacks(void);
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DLLEXPORT void nest_stacks(void);
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DLLEXPORT void unnest_stacks(void);
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void init_stacks(CELL ds_size, CELL cs_size);
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void primitive_drop(void);
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void primitive_2drop(void);
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void primitive_3drop(void);
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void primitive_dup(void);
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void primitive_2dup(void);
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void primitive_3dup(void);
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void primitive_rot(void);
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void primitive__rot(void);
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void primitive_dupd(void);
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void primitive_swapd(void);
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void primitive_nip(void);
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void primitive_2nip(void);
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void primitive_tuck(void);
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void primitive_over(void);
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void primitive_pick(void);
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void primitive_swap(void);
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void primitive_to_r(void);
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void primitive_from_r(void);
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F_VECTOR* stack_to_vector(CELL bottom, CELL top);
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void primitive_datastack(void);
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void primitive_callstack(void);
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CELL vector_to_stack(F_VECTOR* vector, CELL bottom);
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void primitive_set_datastack(void);
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void primitive_set_callstack(void);
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