#include "src/lib/16_pm.h"\r
#pragma hdrstop\r
\r
-boolean pmdebug=0;\r
+#ifdef __DEBUG__\r
+boolean debugpm=0;\r
+#endif\r
\r
-/*\r
// Main Mem specific variables\r
boolean MainPresent;\r
- memptr MainMemPages[PMMaxMainMem];\r
+/* memptr MainMemPages[PMMaxMainMem];\r
PMBlockAttr gvar->pm.mm.MainMemUsed[PMMaxMainMem];\r
- int gvar->pm.mm.MainPagesAvail;\r
+ int gvar->pm.mm.MainPagesAvail;*/\r
\r
// EMS specific variables\r
- boolean gvar->pm.emm.EMSPresent;\r
- word gvar->pm.emm.EMSAvail,gvar->pm.emm.EMSPagesAvail,gvar->pm.emm.EMSHandle,\r
+ boolean EMSPresent;\r
+/* word gvar->pm.emm.EMSAvail,gvar->pm.emm.EMSPagesAvail,gvar->pm.emm.EMSHandle,\r
gvar->pm.emm.EMSPageFrame,gvar->pm.emm.EMSPhysicalPage;\r
- gvar->pm.emm.EMSListStruct gvar->pm.emm.EMSList[EMSFrameCount];\r
+ gvar->pm.emm.EMSListStruct gvar->pm.emm.EMSList[EMSFrameCount];*/\r
\r
// XMS specific variables\r
- boolean gvar->pm.xmm.XMSPresent;\r
- word gvar->pm.xmm.XMSAvail,gvar->pm.xmm.XMSPagesAvail,gvar->pm.xmm.XMSHandle;*/\r
+ boolean XMSPresent;\r
+ //word gvar->pm.xmm.XMSAvail,gvar->pm.xmm.XMSPagesAvail,gvar->pm.xmm.XMSHandle;\r
word XMSDriver;\r
/* int gvar->pm.xmm.XMSProtectPage = -1;\r
\r
char gvar->pm.fi.PageFileName[13] = {"VSWAP."};\r
int PageFile = -1;\r
word gvar->pm.fi.ChunksInFile;\r
- word PMSpriteStart,PMSoundStart;\r
+ word PMSpriteStart,PMSoundStart;*/\r
\r
// General usage variables\r
- boolean PMStarted,\r
+ boolean PMStarted;/*,\r
gvar->pm.PMPanicMode,\r
gvar->pm.PMThrashing;\r
word gvar->pm.XMSPagesUsed,\r
gvar->pm.PMNumBlocks;\r
long PMFrameCount;\r
PageListStruct far *gvar->pm.PMPages,\r
- _seg *gvar->pm.PMSegPages;\r
-*/\r
+ _seg *gvar->pm.PMSegPages;*/\r
+\r
static char *ParmStrings[] = {"nomain","noems","noxms",nil};\r
\r
/////////////////////////////////////////////////////////////////////////////\r
// to the maximum we need)\r
//\r
\r
- char EMMDriverName[9] = "EMMXXXX0";\r
-\r
boolean\r
PML_StartupEMS(global_game_variables_t *gvar)\r
{\r
int i;\r
long size;\r
- boolean errorflag;\r
+ byte str[64];\r
+ byte err;\r
\r
- gvar->pm.emm.EMSPresent = false; // Assume that we'll fail\r
+ boolean errorflag=0;\r
+ static char emmname[] = "EMMXXXX0"; //fix by andrius4669\r
+ unsigned int EMSVer = 0;\r
+ unsigned totalEMSpages,freeEMSpages,EMSPageFrame,EMSHandle,EMSAvail;\r
+ totalEMSpages = freeEMSpages = EMSPageFrame = 0;\r
+ EMSPresent = false; // Assume that we'll fail\r
gvar->pm.emm.EMSAvail = 0;\r
- errorflag=0;\r
\r
- _DX = (word)EMMDriverName;\r
- _AX = 0x3d00;\r
- geninterrupt(0x21); // try to open EMMXXXX0 device\r
__asm {\r
- jnc gothandle\r
- mov errorflag,1\r
+ mov dx,OFFSET emmname //fix by andrius4669\r
+ mov ax,0x3d00\r
+ int EMS_INT // try to open EMMXXXX0 device\r
+ jc error1\r
+\r
+ mov bx,ax\r
+ mov ax,0x4400\r
+\r
+ int EMS_INT // get device info\r
+ jc error1\r
+\r
+ and dx,0x80\r
+ jz error1\r
+\r
+ mov ax,0x4407\r
+\r
+ int EMS_INT // get status\r
+ jc error1\r
+ or al,al\r
+ jz error1\r
+\r
+ mov ah,0x3e\r
+ int EMS_INT // close handle\r
+ jc error1\r
+\r
+ mov ah,EMS_STATUS\r
+ int EMS_INT\r
+ jc error1 // make sure EMS hardware is present\r
+\r
+ mov ah,EMS_VERSION\r
+ int EMS_INT // only work on EMS 3.2 or greater (silly, but...)\r
+ or ah,ah\r
+ jnz error1\r
+ mov [EMSVer],ax // set EMSVer\r
+ cmp al,0x32 // only work on ems 3.2 or greater\r
+ jb error1\r
+\r
+ mov ah,EMS_GETFRAME\r
+ int EMS_INT // find the page frame address\r
+ or ah,ah\r
+ jnz error1\r
+ mov [EMSPageFrame],bx\r
+\r
+ mov ah,EMS_GETPAGES\r
+ int EMS_INT // find out how much EMS is there\r
+ or ah,ah\r
+ jnz error1\r
+ or bx,bx\r
+ jz noEMS // no EMS at all to allocate\r
+ cmp bx,2\r
+ jl noEMS // Require at least 2 pages (32k)\r
+ mov [totalEMSpages],dx\r
+ mov [freeEMSpages],bx\r
+ mov [EMSAvail],bx\r
+ jmp End1\r
#ifdef __BORLANDC__\r
}\r
#endif\r
- gothandle:\r
-#ifdef __WATCOMC__\r
- }\r
-#endif\r
- if(errorflag)\r
- goto error;\r
-\r
-//gothandle:\r
- _BX = _AX;\r
- _AX = 0x4400;\r
- geninterrupt(0x21); // get device info\r
+ error1:\r
+#ifdef __BORLANDC__\r
__asm {\r
- jnc gotinfo\r
+#endif\r
+ mov err,ah\r
mov errorflag,1\r
+ jmp End1\r
#ifdef __BORLANDC__\r
}\r
#endif\r
- gotinfo:\r
+noEMS:\r
+End1:\r
#ifdef __WATCOMC__\r
}\r
#endif\r
- if(errorflag)\r
- goto error;\r
-\r
-//gotinfo:\r
-__asm and dx,0x80\r
- if (!_DX)\r
- goto error;\r
-\r
- _AX = 0x4407;\r
- geninterrupt(0x21); // get status\r
+/*\r
+ if(errorflag==false)\r
+ {\r
+ // Don't hog all available EMS\r
+ size = gvar->pm.emm.EMSAvail * (long)EMSPageSize;\r
+ if (size - (EMSPageSize * 2) > (gvar->pm.fi.ChunksInFile * (long)PMPageSize))\r
+ {\r
+ size = (gvar->pm.fi.ChunksInFile * (long)PMPageSize) + EMSPageSize;\r
+ gvar->pm.emm.EMSAvail = size / EMSPageSize;\r
+ }\r
+ }\r
+*/\r
__asm {\r
- jc error\r
- jmp end\r
- error:\r
+ mov ah,EMS_ALLOCPAGES\r
+ mov bx,[EMSAvail];\r
+ int EMS_INT\r
+ or ah,ah\r
+ jnz error2\r
+ mov [EMSHandle],dx\r
+ jmp End2\r
+#ifdef __BORLANDC__\r
+ }\r
+#endif\r
+ error2:\r
+#ifdef __BORLANDC__\r
+ __asm {\r
+#endif\r
+ mov err,ah\r
mov errorflag,1\r
+ jmp End2\r
#ifdef __BORLANDC__\r
}\r
#endif\r
- end:\r
+End2:\r
#ifdef __WATCOMC__\r
}\r
#endif\r
- if (!_AL)\r
- goto error;\r
-\r
- _AH = 0x3e;\r
- geninterrupt(0x21); // close handle\r
-\r
- _AH = EMS_STATUS;\r
- geninterrupt(EMS_INT);\r
- if (_AH)\r
- goto error; // make sure EMS hardware is present\r
-\r
- _AH = EMS_VERSION;\r
- geninterrupt(EMS_INT);\r
- if (_AH || (_AL < 0x32)) // only work on EMS 3.2 or greater (silly, but...)\r
- goto error;\r
-\r
- _AH = EMS_GETFRAME;\r
- geninterrupt(EMS_INT);\r
- if (_AH)\r
- goto error; // find the page frame address\r
- gvar->pm.emm.EMSPageFrame = _BX;\r
\r
- _AH = EMS_GETPAGES;\r
- geninterrupt(EMS_INT);\r
- if (_AH)\r
- goto error;\r
- if (_BX < 2)\r
- goto error; // Require at least 2 pages (32k)\r
- gvar->pm.emm.EMSAvail = _BX;\r
-\r
- // Don't hog all available EMS\r
- size = gvar->pm.emm.EMSAvail * (long)EMSPageSize;\r
- if (size - (EMSPageSize * 2) > (gvar->pm.fi.ChunksInFile * (long)PMPageSize))\r
+ if(errorflag==false)\r
{\r
- size = (gvar->pm.fi.ChunksInFile * (long)PMPageSize) + EMSPageSize;\r
- gvar->pm.emm.EMSAvail = size / EMSPageSize;\r
- }\r
-\r
- _AH = EMS_ALLOCPAGES;\r
- _BX = gvar->pm.emm.EMSAvail;\r
- geninterrupt(EMS_INT);\r
- if (_AH)\r
- goto error;\r
- gvar->pm.emm.EMSHandle = _DX;\r
-\r
gvar->mmi.EMSmem += gvar->pm.emm.EMSAvail * (long)EMSPageSize;\r
\r
// Initialize EMS mapping cache\r
for (i = 0;i < EMSFrameCount;i++)\r
gvar->pm.emm.EMSList[i].baseEMSPage = -1;\r
\r
- gvar->pm.emm.EMSPresent = true; // We have EMS\r
+ }\r
+ else\r
+ {\r
+ strcpy(str,"PML_StartupEMS: EMS error ");\r
+ MM_EMSerr(str, err);\r
+ printf("%s\n",str);\r
+ return(EMSPresent);\r
+ }\r
\r
-error:\r
- return(gvar->pm.emm.EMSPresent);\r
+ EMSPresent = true; // We have EMS\r
+ gvar->pm.emm.EMSPageFrame = EMSPageFrame;\r
+ gvar->pm.emm.EMSAvail = EMSAvail;\r
+ gvar->pm.emm.EMSVer = EMSVer;\r
+ gvar->pm.emm.EMSHandle = EMSHandle;\r
+ gvar->pm.emm.freeEMSpages = freeEMSpages;\r
+ gvar->pm.emm.totalEMSpages = totalEMSpages;\r
+\r
+ return(EMSPresent);\r
}\r
\r
//\r
PML_ShutdownEMS(global_game_variables_t *gvar)\r
{\r
word EMSHandle;\r
+ byte err;\r
+ byte str[64];\r
+ boolean errorflag=false;\r
+\r
EMSHandle=gvar->pm.emm.EMSHandle;\r
\r
- if (gvar->pm.emm.EMSPresent)\r
+ if (EMSPresent)\r
{\r
__asm {\r
mov ah,EMS_FREEPAGES\r
mov dx,[EMSHandle]\r
int EMS_INT\r
+ jc errors\r
+ jmp Ends\r
+#ifdef __BORLANDC__\r
}\r
- if (_AH)\r
+#endif\r
+ errors:\r
+#ifdef __BORLANDC__\r
+ __asm {\r
+#endif\r
+ mov err,ah\r
+ mov errorflag,1\r
+ jmp Ends\r
+#ifdef __BORLANDC__\r
+ }\r
+#endif\r
+ Ends:\r
+#ifdef __WATCOMC__\r
+ }\r
+#endif\r
+ if(errorflag==true)\r
{\r
+ strcpy(str,"PML_ShutdownEMS: Error freeing EMS ");\r
+ MM_EMSerr(str, err);\r
+ printf("%s\n",str);\r
Quit("PML_ShutdownEMS: Error freeing EMS\n");\r
//return;\r
}\r
boolean\r
PML_StartupXMS(global_game_variables_t *gvar)\r
{\r
- gvar->pm.xmm.XMSPresent = false; // Assume failure\r
+ XMSPresent = false; // Assume failure\r
gvar->pm.xmm.XMSAvail = 0;\r
\r
_AX=0x4300;\r
\r
gvar->mmi.XMSmem += gvar->pm.xmm.XMSAvail * 1024;\r
\r
- gvar->pm.xmm.XMSPresent = true;\r
+ XMSPresent = true;\r
error:\r
- return(gvar->pm.xmm.XMSPresent);\r
+ return(XMSPresent);\r
}\r
\r
//\r
void\r
PML_ShutdownXMS(global_game_variables_t *gvar)\r
{\r
- if (gvar->pm.xmm.XMSPresent)\r
+ if (XMSPresent)\r
{\r
_DX = gvar->pm.xmm.XMSHandle;\r
XMS_CALL(XMS_FREE);\r
{\r
int i;\r
\r
+ if(MainPresent)\r
for (i = 0;i < PMMaxMainMem;i++)\r
{\r
#ifdef __DEBUG_PM__\r
printf("PM_SetMainMemPurge() info of gvar->pm.mm.MainMemPages[i]\n");\r
- printf(" %Fp, %Fp\n", gvar->pm.mm.MainMemPages[i], (gvar->pm.mm.MainMemPages[i]));\r
printf("& %Fp, %Fp\n", &gvar->pm.mm.MainMemPages[i], &(gvar->pm.mm.MainMemPages[i]));\r
#endif\r
if (gvar->pm.mm.MainMemPages[i])\r
- MM_SetPurge((gvar->pm.mm.MainMemPages[i]),level, gvar);\r
+ MM_SetPurge(&(gvar->pm.mm.MainMemPages[i]),level, gvar);\r
+ }\r
+\r
+ else\r
+ {\r
+ Quit("MainPresent IS NULL\n");\r
}\r
}\r
\r
PMBlockAttr *used;\r
PageListStruct far *page;\r
\r
- if (!gvar->pm.mm.MainPresent)\r
+ if (!MainPresent)\r
return;\r
\r
for (i = 0,page = gvar->pm.PMPages;i < gvar->pm.fi.ChunksInFile;i++,page++)\r
memptr *p;\r
\r
gvar->pm.mm.MainPagesAvail = 0;\r
+ MainPresent = false;\r
MM_BombOnError(false, gvar);\r
+ printf("PML_StartupMainMem()\n");\r
+ printf(" p=%04x MainMemPages=%04x\n", p, gvar->pm.mm.MainMemPages);\r
+ printf(" p=%Fp MainMemPages=%Fp\n", p, gvar->pm.mm.MainMemPages);\r
for (i = 0,p = gvar->pm.mm.MainMemPages;i < PMMaxMainMem;i++,p++)\r
{\r
MM_GetPtr(p,PMPageSize, gvar);\r
Quit("PM_SetupMainMem: Not enough main memory");\r
//return;\r
}\r
- gvar->pm.mm.MainPresent = true;\r
+ MainPresent = true;\r
}\r
\r
//\r
int usexms;\r
PageListStruct far *page;\r
\r
- if (!gvar->pm.xmm.XMSPresent)\r
+ if (!XMSPresent)\r
return;\r
\r
page = &gvar->pm.PMPages[pagenum];\r
PageListStruct far *page;\r
\r
page = &gvar->pm.PMPages[pagenum];\r
- if (gvar->pm.xmm.XMSPresent && (page->xmsPage != -1))\r
+ if (XMSPresent && (page->xmsPage != -1))\r
{\r
gvar->pm.xmm.XMSProtectPage = pagenum;\r
checkaddr = PML_GetAPageBuffer(pagenum,mainonly, gvar);\r
boolean nomain,noems,noxms;\r
int i;\r
\r
- if (gvar->pm.PMStarted)\r
+ if (PMStarted)\r
return;\r
\r
- strcat(&(gvar->pm.fi.PageFileName), "VSWAP.");\r
+ strcpy(&(gvar->pm.fi.PageFileName), "VSWAP.");\r
\r
nomain = noems = noxms = false;\r
for (i = 1;i <\r
}\r
}\r
\r
- PML_OpenPageFile(gvar);\r
+ //0000++++PML_OpenPageFile(gvar);\r
\r
if (!noems)\r
PML_StartupEMS(gvar);\r
if (!noxms)\r
- PML_StartupXMS(gvar);\r
+ //++++PML_StartupXMS(gvar); //TODO: convert\r
\r
- if (nomain && !gvar->pm.emm.EMSPresent)\r
+ if (!nomain && !EMSPresent)\r
{\r
Quit("PM_Startup: No main or EMS\n");\r
//return;\r
}\r
- else\r
- PML_StartupMainMem(gvar);\r
+ PML_StartupMainMem(gvar);\r
\r
PM_Reset(gvar);\r
\r
- gvar->pm.PMStarted = true;\r
+ PMStarted = true;\r
}\r
\r
//\r
PML_ShutdownXMS(gvar);\r
PML_ShutdownEMS(gvar);\r
\r
- if (!gvar->pm.PMStarted)\r
+ if (!PMStarted)\r
return;\r
\r
PML_ClosePageFile(gvar);\r
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