};
typedef void (dcpu16_hw_signal_t)(struct dcpu16 *, struct dcpu16_hw *);
-/* these are used to define hardware attached to the system */
+/* this structure defines a specific instance of this type of 'hardware' */
struct dcpu16_hw {
- struct dcpu16 *vm; /* which system do I belong to */
+ struct dcpu16 *vm; /* which system do I belong to */
struct dcpu16_hw_module *mod; /* whence I came */
- char *name_;
-
- DCPU16_WORD id_l;
- DCPU16_WORD id_h;
- DCPU16_WORD ver;
- DCPU16_WORD mfg_l;
- DCPU16_WORD mfg_h;
-
- dcpu16_hw_signal_t *hwi;
- dcpu16_hw_signal_t *cycle;
- dcpu16_hw_signal_t *reset;
-
- void *data;
+ void *data; /* per-instance data */
};
/* human-readable text describing hw module control operations, for convenience's sake */
char *data_out_type;
char *description;
};
+
typedef int (dcpu16_hw_data_init_t)(struct dcpu16_hw *, void *);
typedef void (dcpu16_hw_data_free_t)(struct dcpu16_hw *);
typedef int (dcpu16_hw_ctl_t)(struct dcpu16_hw *, const char *, void *, void *);
struct dcpu16_hw_module {
- struct dcpu16_hw *template;
- dcpu16_hw_data_init_t *data_init;
+ char *name_; /* dymo label on front panel */
+
+ DCPU16_WORD id_l;
+ DCPU16_WORD id_h;
+ DCPU16_WORD ver;
+ DCPU16_WORD mfg_l;
+ DCPU16_WORD mfg_h;
+
+ dcpu16_hw_signal_t *hwi; /* hardware interrupt handler */
+ dcpu16_hw_signal_t *cycle; /* cycle tick handler */
+ dcpu16_hw_signal_t *reset; /* reset handler */
+
+ dcpu16_hw_data_init_t *data_init; /* how to allocate a dcpu16_hw instance's data */
dcpu16_hw_data_free_t *data_free;
dcpu16_hw_ctl_t *ctl;
struct dcpu16_hw_ctl_cmd *ctl_cmd;
/* reset a core to initial state */
void dcpu16_reset(struct dcpu16 *);
-/* print the current state of a core */
-void dcpu16_state_print(struct dcpu16 *);
-
-/* print the contents of ram from second to third argument */
-void dcpu16_dump_ram(struct dcpu16 *, DCPU16_WORD, DCPU16_WORD);
-
/* print words in buf as asm */
DCPU16_WORD dcpu16_mnemonify_buf(DCPU16_WORD *);
/* release a core */
void dcpu16_delete(struct dcpu16 **);
+/* signal hardware interrupt */
int dcpu16_interrupt(struct dcpu16 *, DCPU16_WORD);
+
+/* consume a cycle */
void dcpu16_cycle_inc(struct dcpu16 *, unsigned int);
/* register callbacks to handle warning and debug messages, default is writing to stderr, may be set to null */