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This commit is contained in:
Stephen Crane 2014-11-29 13:36:51 +00:00
parent ff399c5ef1
commit c8d22f487c
1 changed files with 5 additions and 5 deletions
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10
memory.h
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@ -14,14 +14,14 @@ public:
class Memory { class Memory {
public: public:
typedef unsigned short address; typedef unsigned short address;
static const unsigned int page_size = 256; static const unsigned page_size = 256;
class Device: public Checkpointable { class Device: public Checkpointable {
public: public:
Device (int bytes): _pages(bytes/page_size) {} Device (unsigned bytes): _pages(bytes/page_size) {}
virtual ~Device () {} virtual ~Device () {}
int pages () const { return _pages; } unsigned pages () const { return _pages; }
void access (address a) { _acc=a-_base; } void access (address a) { _acc=a-_base; }
void base (address a) { _base=a; } void base (address a) { _base=a; }
address base () const { return _base; } address base () const { return _base; }
@ -37,13 +37,13 @@ public:
private: private:
friend class Memory; friend class Memory;
int _pages; unsigned _pages;
}; };
// insert a new device instance // insert a new device instance
// //
void put (Device &d, address at); void put (Device &d, address at);
void put (Device &d, address at, int ep) { d._pages = ep; put(d, at); } void put (Device &d, address at, unsigned ep) { d._pages = ep; put(d, at); }
Device *get (address at) const { return _pages[at/page_size]; } Device *get (address at) const { return _pages[at/page_size]; }
// primary access interface // primary access interface