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enable dynamic debugging

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This commit is contained in:
Stephen Crane 2014-10-31 08:18:15 +00:00
parent 867760ffd0
commit 3337dd8646
2 changed files with 6 additions and 1 deletions
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3
cpu.h
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@ -20,10 +20,13 @@ public:
virtual void checkpoint(Stream &s) = 0; virtual void checkpoint(Stream &s) = 0;
virtual void restore(Stream &s) = 0; virtual void restore(Stream &s) = 0;
void debug() { _debug = !_debug; }
protected: protected:
CPU (Memory *m, jmp_buf *e, statfn s): _memory(m), _err(e), _status(s){} CPU (Memory *m, jmp_buf *e, statfn s): _memory(m), _err(e), _status(s){}
Memory *_memory; Memory *_memory;
jmp_buf *_err; jmp_buf *_err;
statfn _status; statfn _status;
bool _debug;
}; };
#endif #endif

4
r6502.cpp
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@ -10,7 +10,8 @@ Memory::address r6502::run (unsigned clocks) {
{ {
byte op = (*_memory)[PC]; byte op = (*_memory)[PC];
#ifdef CPU_DEBUG #ifdef CPU_DEBUG
_status ("%04x: %02x [%02x %02x %02x, %02x]\r", PC, op, A, X, Y, flags()); if (_debug)
_status ("%04x: %02x [%02x %02x %02x, %02x]\r", PC, op, A, X, Y, flags());
#endif #endif
PC++; PC++;
(this->*_ops[op])(); (this->*_ops[op])();
@ -180,6 +181,7 @@ void r6502::ill () {
void r6502::reset () void r6502::reset ()
{ {
_debug = false;
P.value = 0; P.value = 0;
P.bits._ = 1; P.bits._ = 1;
P.bits.B = 1; P.bits.B = 1;