100 lines
2.6 KiB
C
100 lines
2.6 KiB
C
/* Callstack top pointer */
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CELL cs;
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/* TAGGED currently executing quotation */
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CELL callframe;
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/* UNTAGGED currently executing word in quotation */
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CELL callframe_scan;
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/* UNTAGGED end of quotation */
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CELL callframe_end;
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#define USER_ENV 32
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#define CARD_OFF_ENV 1 /* for compiling set-slot */
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/* 2 is unused */
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#define NAMESTACK_ENV 3 /* used by library only */
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#define GLOBAL_ENV 4
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#define BREAK_ENV 5
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#define CATCHSTACK_ENV 6 /* used by library only */
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#define CPU_ENV 7
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#define BOOT_ENV 8
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#define CALLCC_1_ENV 9 /* used by library only */
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#define ARGS_ENV 10
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#define OS_ENV 11
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#define ERROR_ENV 12 /* a marker consed onto kernel errors */
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#define IN_ENV 13
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#define OUT_ENV 14
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#define GEN_ENV 15 /* set to gen_count */
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#define IMAGE_ENV 16 /* image name */
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#define CELL_SIZE_ENV 17 /* sizeof(CELL) */
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/* TAGGED user environment data; see getenv/setenv prims */
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DLLEXPORT CELL userenv[USER_ENV];
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void call(CELL quot);
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void handle_error();
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void run(void);
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void run_toplevel(void);
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DLLEXPORT void run_callback(CELL quot);
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void platform_run(void);
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void undefined(F_WORD *word);
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void docol(F_WORD *word);
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void dosym(F_WORD *word);
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void primitive_execute(void);
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void primitive_call(void);
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void primitive_ifte(void);
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void primitive_dispatch(void);
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void primitive_getenv(void);
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void primitive_setenv(void);
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void primitive_exit(void);
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void primitive_os_env(void);
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void primitive_eq(void);
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void primitive_millis(void);
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/* Runtime errors */
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typedef enum
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{
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ERROR_EXPIRED,
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ERROR_IO,
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ERROR_UNDEFINED_WORD,
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ERROR_TYPE,
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ERROR_SIGNAL,
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ERROR_NEGATIVE_ARRAY_SIZE,
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ERROR_C_STRING,
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ERROR_FFI,
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ERROR_HEAP_SCAN,
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ERROR_UNDEFINED_SYMBOL,
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ERROR_USER_INTERRUPT,
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ERROR_DS_UNDERFLOW,
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ERROR_DS_OVERFLOW,
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ERROR_RS_UNDERFLOW,
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ERROR_RS_OVERFLOW,
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ERROR_CS_UNDERFLOW,
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ERROR_CS_OVERFLOW,
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ERROR_OBJECTIVE_C
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} F_ERRORTYPE;
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/* Are we throwing an error? */
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bool throwing;
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/* When throw_error throws an error, it sets this global and
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longjmps back to the top-level. */
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CELL thrown_error;
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CELL thrown_keep_stacks;
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/* Since longjmp restores registers, we must save all these values. */
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CELL thrown_ds;
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CELL thrown_rs;
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void fatal_error(char* msg, CELL tagged);
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void critical_error(char* msg, CELL tagged);
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void throw_error(CELL error, bool keep_stacks);
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void early_error(CELL error);
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void general_error(F_ERRORTYPE error, CELL arg1, CELL arg2, bool keep_stacks);
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void memory_protection_error(void *addr, int signal);
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void signal_error(int signal);
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void type_error(CELL type, CELL tagged);
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void primitive_throw(void);
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void primitive_die(void);
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