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make recompiler codepage handlers' writemap accesses alignment/endian aware

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3002
This commit is contained in:
Sebastian Strohhäcker 2007-09-29 10:30:46 +00:00
parent c9eb0378a5
commit cd5a157a34
1 changed files with 26 additions and 6 deletions
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32
src/cpu/core_dynrec/cache.h
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@ -145,7 +145,7 @@ public:
if (host_readb(hostmem+addr)==(Bit8u)val) return;
host_writeb(hostmem+addr,val);
// see if there's code where we are writing to
if (!*(Bit8u*)&write_map[addr]) {
if (!host_readb(&write_map[addr])) {
if (active_blocks) return; // still some blocks in this page
active_count--;
if (!active_count) Release(); // delay page releasing until active_count is zero
@ -162,7 +162,7 @@ public:
if (host_readw(hostmem+addr)==(Bit16u)val) return;
host_writew(hostmem+addr,val);
// see if there's code where we are writing to
if (!*(Bit16u*)&write_map[addr]) {
if (!host_readw(&write_map[addr])) {
if (active_blocks) return; // still some blocks in this page
active_count--;
if (!active_count) Release(); // delay page releasing until active_count is zero
@ -171,7 +171,12 @@ public:
invalidation_map=(Bit8u*)malloc(4096);
memset(invalidation_map,0,4096);
}
#if defined(WORDS_BIGENDIAN) || !defined(C_UNALIGNED_MEMORY)
host_writew(&invalidation_map[addr],
host_readw(&invalidation_map[addr])+0x101);
#else
(*(Bit16u*)&invalidation_map[addr])+=0x101;
#endif
InvalidateRange(addr,addr+1);
}
void writed(PhysPt addr,Bitu val){
@ -179,7 +184,7 @@ public:
if (host_readd(hostmem+addr)==(Bit32u)val) return;
host_writed(hostmem+addr,val);
// see if there's code where we are writing to
if (!*(Bit32u*)&write_map[addr]) {
if (!host_readd(&write_map[addr])) {
if (active_blocks) return; // still some blocks in this page
active_count--;
if (!active_count) Release(); // delay page releasing until active_count is zero
@ -188,14 +193,19 @@ public:
invalidation_map=(Bit8u*)malloc(4096);
memset(invalidation_map,0,4096);
}
#if defined(WORDS_BIGENDIAN) || !defined(C_UNALIGNED_MEMORY)
host_writed(&invalidation_map[addr],
host_readd(&invalidation_map[addr])+0x1010101);
#else
(*(Bit32u*)&invalidation_map[addr])+=0x1010101;
#endif
InvalidateRange(addr,addr+3);
}
bool writeb_checked(PhysPt addr,Bitu val) {
addr&=4095;
if (host_readb(hostmem+addr)==(Bit8u)val) return false;
// see if there's code where we are writing to
if (!*(Bit8u*)&write_map[addr]) {
if (!host_readb(&write_map[addr])) {
if (!active_blocks) {
// no blocks left in this page, still delay the page releasing a bit
active_count--;
@ -219,7 +229,7 @@ public:
addr&=4095;
if (host_readw(hostmem+addr)==(Bit16u)val) return false;
// see if there's code where we are writing to
if (!*(Bit16u*)&write_map[addr]) {
if (!host_readw(&write_map[addr])) {
if (!active_blocks) {
// no blocks left in this page, still delay the page releasing a bit
active_count--;
@ -230,7 +240,12 @@ public:
invalidation_map=(Bit8u*)malloc(4096);
memset(invalidation_map,0,4096);
}
#if defined(WORDS_BIGENDIAN) || !defined(C_UNALIGNED_MEMORY)
host_writew(&invalidation_map[addr],
host_readw(&invalidation_map[addr])+0x101);
#else
(*(Bit16u*)&invalidation_map[addr])+=0x101;
#endif
if (InvalidateRange(addr,addr+1)) {
cpu.exception.which=SMC_CURRENT_BLOCK;
return true;
@ -243,7 +258,7 @@ public:
addr&=4095;
if (host_readd(hostmem+addr)==(Bit32u)val) return false;
// see if there's code where we are writing to
if (!*(Bit32u*)&write_map[addr]) {
if (!host_readd(&write_map[addr])) {
if (!active_blocks) {
// no blocks left in this page, still delay the page releasing a bit
active_count--;
@ -254,7 +269,12 @@ public:
invalidation_map=(Bit8u*)malloc(4096);
memset(invalidation_map,0,4096);
}
#if defined(WORDS_BIGENDIAN) || !defined(C_UNALIGNED_MEMORY)
host_writed(&invalidation_map[addr],
host_readd(&invalidation_map[addr])+0x1010101);
#else
(*(Bit32u*)&invalidation_map[addr])+=0x1010101;
#endif
if (InvalidateRange(addr,addr+3)) {
cpu.exception.which=SMC_CURRENT_BLOCK;
return true;