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preoffset mem pointers. get rid of unused memory.

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git-svn-id: https://gambatte.svn.sourceforge.net/svnroot/gambatte@119 9dfb2916-2d38-0410-aef4-c5fe6c9ffc24
This commit is contained in:
sinamas 2008-01-31 11:36:04 +00:00
parent d7e9f01a3f
commit f3a6c902ff
2 changed files with 412 additions and 418 deletions
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809
libgambatte/src/memory.cpp
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File diff suppressed because it is too large Load Diff

21
libgambatte/src/memory.h
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@ -38,18 +38,19 @@ class Memory {
static const unsigned long COUNTER_DISABLED = 0xFFFFFFFF;
unsigned char memory[0x10000];
unsigned char ioamhram[0x200];
unsigned char vram[0x2000 * 2];
unsigned char rdisabled_ram[0x1000];
unsigned char wdisabled_ram[0x1000];
unsigned char *rmem[0x10];
unsigned char *wmem[0x10];
unsigned char cgb_bgp_data[8 * 8];
unsigned char cgb_objp_data[8 * 8];
unsigned char *memchunk;
unsigned char *romdata[2];
unsigned char *wramdata[2];
unsigned char *rambankdata;
unsigned char *rdisabled_ram;
unsigned char *wdisabled_ram;
unsigned char *oamDmaSrc;
unsigned char *vrambank;
unsigned char *rsrambankptr;
@ -97,6 +98,8 @@ class Memory {
unsigned char oamDmaArea2Upper;
unsigned char oamDmaPos;
bool cgb;
bool doubleSpeed;
bool IME;
bool enable_ram;
bool rambank_mode;
@ -133,7 +136,7 @@ class Memory {
void refreshPalettes(unsigned long cycleCounter);
bool isDoubleSpeed() const { return (memory[0x0143] & memory[0xFF4D]) >> 7; }
bool isDoubleSpeed() const { return doubleSpeed; }
public:
Memory(const Interrupter &interrupter);
@ -143,7 +146,7 @@ public:
void reload();
void speedChange(unsigned long cycleCounter);
bool isCgb() const { return memory[0x0143] >> 7; }
bool isCgb() const { return cgb; }
bool getIME() const { return IME; }
unsigned long getNextEventTime() const { return next_eventtime; }
@ -163,11 +166,11 @@ public:
}
unsigned char ff_read(const unsigned P, const unsigned long cycleCounter) {
return P < 0xFF80 ? nontrivial_ff_read(P, cycleCounter) : memory[P];
return P < 0xFF80 ? nontrivial_ff_read(P, cycleCounter) : ioamhram[P - 0xFE00];
}
unsigned char read(const unsigned P, const unsigned long cycleCounter) {
return rmem[P >> 12] ? rmem[P >> 12][P & 0xFFF] : nontrivial_read(P, cycleCounter);
return rmem[P >> 12] ? rmem[P >> 12][P] : nontrivial_read(P, cycleCounter);
}
unsigned char pc_read(const unsigned P, const unsigned long cycleCounter) {
@ -176,7 +179,7 @@ public:
void write(const unsigned P, const unsigned data, const unsigned long cycleCounter) {
if (wmem[P >> 12])
wmem[P >> 12][P & 0xFFF] = data;
wmem[P >> 12][P] = data;
else
nontrivial_write(P, data, cycleCounter);
}
@ -185,7 +188,7 @@ public:
if ((P + 1 & 0xFF) < 0x81)
nontrivial_ff_write(P, data, cycleCounter);
else
memory[P] = data;
ioamhram[P - 0xFE00] = data;
}
unsigned long event(unsigned long cycleCounter);