X-Git-Url: http://git.squeep.com/?a=blobdiff_plain;f=dcpu16.h;h=73592d9c358e907b1c8d1b7d62e17162ebd6045b;hb=a9191ba0a5fc210884f9cbcb7174b5dec09d2db6;hp=af964e7e46c561f1923e5f49ff8dc5f8768623e8;hpb=0b4991bc7e50f503769a2d2a1a4b5c1690251899;p=dcpu16 diff --git a/dcpu16.h b/dcpu16.h index af964e7..73592d9 100644 --- a/dcpu16.h +++ b/dcpu16.h @@ -1,24 +1,14 @@ #ifndef DCPU16_H_3XXIQQG2 #define DCPU16_H_3XXIQQG2 +#include + /* the target system's concept of a word */ typedef unsigned short DCPU16_WORD; /* how much ram the system has */ #define DCPU16_RAM 0x10000 -/* these are used for accounting/watchpointing/&c */ -typedef unsigned int dcpu16_acct_event_; -#define DCPU16_ACCT_EV_READ (1<<1) -#define DCPU16_ACCT_EV_WRITE (1<<2) -#define DCPU16_ACCT_RAM (1<<3) - -struct dcpu16_acct_cb { - void (*fn)(dcpu16_acct_event_ e, DCPU16_WORD addr); - dcpu16_acct_event_ match_all; - dcpu16_acct_event_ match_any; -}; - /* a self-contained dcpu16 core */ struct dcpu16 { unsigned long long cycle; /* number of cycles this core has executed */ @@ -29,11 +19,23 @@ struct dcpu16 { 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 under certain conditions */ + 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 */ +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) +struct dcpu16_acct_cb { + void (*fn)(struct dcpu16 *, dcpu16_acct_event e, DCPU16_WORD addr, void *); + void *data; + dcpu16_acct_event mask; +}; + /* instantiate a new core */ struct dcpu16 *dcpu16_new(void); @@ -46,11 +48,11 @@ 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 the instruction at the specified address */ -void dcpu16_disassemble_print(struct dcpu16 *, DCPU16_WORD); +/* print the instruction at the specified address, returns number of words consumed in decoding */ +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_ match_all, dcpu16_acct_event_ match_any, void (*fn)(dcpu16_acct_event_, DCPU16_WORD)); +int dcpu16_acct_add(struct dcpu16 *, dcpu16_acct_event mask, void (*fn)(struct dcpu16 *, dcpu16_acct_event, DCPU16_WORD, void *), void *data); /* execute the next instruction */ void dcpu16_step(struct dcpu16 *);