/* a self-contained dcpu16 core */
struct dcpu16 {
+ struct dcpu16_acct_cb *cb_table_; /* list of callbacks to invoke for certain events */
+ size_t cb_table_entries_; /* callback list maintenance */
+ size_t cb_table_allocated_; /* callback list maintenance */
+ unsigned int skip_ : 1; /* skip execution of next instruction */
+ DCPU16_WORD reg_work_[2]; /* work registers for holding literal values while decoding instructions */
+
unsigned long long cycle; /* number of cycles this core has executed */
DCPU16_WORD reg[8]; /* system registers, a b c x y z i j */
DCPU16_WORD pc; /* program counter */
DCPU16_WORD sp; /* stack pointer */
DCPU16_WORD o; /* overflow */
- unsigned int skip_ : 1; /* skip execution of next instruction */
DCPU16_WORD ram[DCPU16_RAM]; /* memory */
- DCPU16_WORD reg_work_[2]; /* (private) work registers for holding literal values while decoding instructions */
- struct dcpu16_acct_cb *cb_table_; /* list of callbacks to invoke for certain events */
- size_t cb_table_entries_; /* callback list maintenance */
- size_t cb_table_allocated_; /* callback list maintenance */
};
-/* these are used for accounting/watchpointing/&c */
+/* these are used for accounting/watchpointing/modules/&c */
typedef unsigned int dcpu16_acct_event;
-#define DCPU16_ACCT_EV_READ (1<<1)
-#define DCPU16_ACCT_EV_WRITE (1<<2)
-#define DCPU16_ACCT_EV_NOP (1<<3)
-#define DCPU16_ACCT_EV_RESET (1<<4)
+typedef void (dcpu16_ev_cb_t)(struct dcpu16 *, dcpu16_acct_event, DCPU16_WORD, void *);
+#define DCPU16_ACCT_EV_CYCLE (1<<1)
+#define DCPU16_ACCT_EV_READ (1<<2)
+#define DCPU16_ACCT_EV_WRITE (1<<3)
+#define DCPU16_ACCT_EV_NOP (1<<4)
+#define DCPU16_ACCT_EV_RESET (1<<5)
struct dcpu16_acct_cb {
- void (*fn)(struct dcpu16 *, dcpu16_acct_event e, DCPU16_WORD addr, void *);
+ dcpu16_ev_cb_t *fn;
void *data;
dcpu16_acct_event mask;
};
DCPU16_WORD dcpu16_disassemble_print(struct dcpu16 *, DCPU16_WORD);
/* register a callback for an accounting event */
-int dcpu16_acct_add(struct dcpu16 *, dcpu16_acct_event mask, void (*fn)(struct dcpu16 *, dcpu16_acct_event, DCPU16_WORD, void *), void *data);
+int dcpu16_acct_add(struct dcpu16 *, dcpu16_acct_event mask, dcpu16_ev_cb_t *fn, void *data);
/* execute the next instruction */
void dcpu16_step(struct dcpu16 *);