\r
#include "src/lib/16_pm.h"\r
#pragma hdrstop\r
-union REGS CPURegs;\r
-/*\r
+\r
+#ifdef __DEBUG__\r
+boolean debugpm=0;\r
+#endif\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
- dword XMSDriver;\r
- int gvar->pm.xmm.XMSProtectPage = -1;\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
// File specific variables\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
//\r
// PML_MapEMS() - Maps a logical page to a physical page\r
//\r
-void\r
-PML_MapEMS(word logical, word physical, global_game_variables_t *gvar)\r
+byte\r
+PML_MapEMS(word logical, byte physical, global_game_variables_t *gvar)\r
{\r
- union REGS CPURegs;\r
- CPURegs.h.al = physical;\r
- CPURegs.x.bx = logical;\r
- CPURegs.x.dx = gvar->pm.emm.EMSHandle;\r
- CPURegs.h.ah = EMS_MAPPAGE;\r
+ byte str[160];\r
+ unsigned EMShandle;\r
+ byte err;\r
+ boolean errorflag=false;\r
+ int i;\r
+ EMShandle=gvar->pm.emm.EMSHandle;\r
+\r
__asm {\r
+ mov ah,EMS_MAPPAGE\r
+ mov al,physical\r
+ mov bx,logical\r
+ mov dx,EMShandle\r
int EMS_INT\r
+ or ah,ah\r
+ jnz error\r
+ jmp End\r
+#ifdef __BORLANDC__\r
}\r
-\r
- if(CPURegs.h.ah)\r
+#endif\r
+ error:\r
+#ifdef __BORLANDC__\r
+ __asm {\r
+#endif\r
+ mov err,ah\r
+ mov errorflag,1\r
+#ifdef __BORLANDC__\r
+ }\r
+#endif\r
+ End:\r
+#ifdef __WATCOMC__\r
+ }\r
+#endif\r
+ if(errorflag==true)\r
{\r
+ strcpy(str,"MM_MapEMS: EMS error ");\r
+ MM_EMSerr(str, err);\r
+ printf("%s\n",str);\r
Quit("PML_MapEMS: Page mapping failed\n");\r
- return;\r
+ return err;\r
}\r
+ return 0;\r
}\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
- boolean emmcfems;\r
- union REGS CPURegs;\r
-\r
int i;\r
long size;\r
-\r
- gvar->pm.emm.EMSPresent = false; // Assume that we'll fail\r
+ byte str[64];\r
+ byte err;\r
+\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
- emmcfems=0;\r
\r
__asm {\r
- //CPURegs.x.dx = (word)EMMDriverName;\r
- //CPURegs.x.ax = 0x3d00;\r
- //geninterrupt(0x21); // try to open EMMXXXX0 device\r
- mov dx,OFFSET EMMDriverName\r
+ mov dx,OFFSET emmname //fix by andrius4669\r
mov ax,0x3d00\r
- int 0x21 // try to open EMMXXXX0 device\r
- jnc gothandle\r
- //fail\r
- mov emmcfems,1\r
- jmp Aend\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
-\r
-gothandle:\r
+ error1:\r
#ifdef __BORLANDC__\r
__asm {\r
#endif\r
- //CPURegs.x.bx = CPURegs.x.ax;\r
- //CPURegs.x.ax = 0x4400;\r
- //geninterrupt(0x21); // get device info\r
- mov bx,ax\r
- mov ax,0x4400\r
- int 0x21 // get device info\r
- jnc gotinfo\r
- //fail\r
- mov emmcfems,1\r
- jmp Aend\r
+ mov err,ah\r
+ mov errorflag,1\r
+ jmp End1\r
#ifdef __BORLANDC__\r
}\r
#endif\r
-Aend:\r
-gotinfo:\r
-#ifndef __BORLANDC__\r
+noEMS:\r
+End1:\r
+#ifdef __WATCOMC__\r
}\r
#endif\r
- if(emmcfems!=0) goto error;\r
- __asm and dx,0x80\r
- if (!CPURegs.x.dx)\r
- goto error;\r
-\r
- CPURegs.x.ax = 0x4407;\r
- geninterrupt(0x21); // get status\r
- __asm mov emmcfems,1\r
- if(emmcfems!=0) goto error;\r
-\r
- if (!CPURegs.h.al)\r
- goto error;\r
-\r
- CPURegs.h.ah = 0x3e;\r
- geninterrupt(0x21); // close handle\r
-\r
- CPURegs.h.ah = EMS_STATUS;\r
- geninterrupt(EMS_INT);\r
- if (CPURegs.h.ah)\r
- goto error; // make sure EMS hardware is present\r
-\r
- CPURegs.h.ah = EMS_VERSION;\r
- geninterrupt(EMS_INT);\r
- if (CPURegs.h.ah || (CPURegs.h.al < 0x32)) // only work on EMS 3.2 or greater (silly, but...)\r
- goto error;\r
-\r
- CPURegs.h.ah = EMS_GETFRAME;\r
- geninterrupt(EMS_INT);\r
- if (CPURegs.h.ah)\r
- goto error; // find the page frame address\r
- gvar->pm.emm.EMSPageFrame = CPURegs.x.bx;\r
-\r
- CPURegs.h.ah = EMS_GETPAGES;\r
- geninterrupt(EMS_INT);\r
- if (CPURegs.h.ah)\r
- goto error;\r
- if (CPURegs.x.bx < 2)\r
- goto error; // Require at least 2 pages (32k)\r
- gvar->pm.emm.EMSAvail = CPURegs.x.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
+/*\r
+ if(errorflag==false)\r
{\r
- size = (gvar->pm.fi.ChunksInFile * (long)PMPageSize) + EMSPageSize;\r
- gvar->pm.emm.EMSAvail = size / EMSPageSize;\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
+ 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
+End2:\r
+#ifdef __WATCOMC__\r
+ }\r
+#endif\r
\r
- CPURegs.h.ah = EMS_ALLOCPAGES;\r
- CPURegs.x.bx = gvar->pm.emm.EMSAvail;\r
- geninterrupt(EMS_INT);\r
- if (CPURegs.h.ah)\r
- goto error;\r
- gvar->pm.emm.EMSHandle = CPURegs.x.dx;\r
-\r
+ if(errorflag==false)\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
void\r
PML_ShutdownEMS(global_game_variables_t *gvar)\r
{\r
- union REGS CPURegs;\r
+ word EMSHandle;\r
+ byte err;\r
+ byte str[64];\r
+ boolean errorflag=false;\r
\r
- if (gvar->pm.emm.EMSPresent)\r
+ EMSHandle=gvar->pm.emm.EMSHandle;\r
+\r
+ if (EMSPresent)\r
{\r
- CPURegs.h.ah=EMS_FREEPAGES;\r
- CPURegs.x.ax=gvar->pm.emm.EMSHandle;\r
- geninterrupt(EMS_INT);\r
- if (CPURegs.h.ah)\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
+#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
- union REGS CPURegs;\r
-\r
- XMSD;\r
- gvar->pm.xmm.XMSPresent = false; // Assume failure\r
+ XMSPresent = false; // Assume failure\r
gvar->pm.xmm.XMSAvail = 0;\r
\r
- CPURegs.x.ax=0x4300;\r
+ _AX=0x4300;\r
geninterrupt(XMS_INT); // Check for presence of XMS driver\r
- if (CPURegs.h.al != 0x80)\r
+ if (_AL != 0x80)\r
goto error;\r
\r
\r
mov [WORD PTR XMSDriver+2],es // function pointer to XMS driver\r
}\r
\r
- XMS_CALL(XMS_QUERYFREE, gvar); // Find out how much XMS is available\r
- gvar->pm.xmm.XMSAvail = CPURegs.x.ax;\r
- if (!CPURegs.x.ax) // AJR: bugfix 10/8/92\r
+ XMS_CALL(XMS_QUERYFREE); // Find out how much XMS is available\r
+ gvar->pm.xmm.XMSAvail = _AX;\r
+ if (!_AX) // AJR: bugfix 10/8/92\r
goto error;\r
\r
gvar->pm.xmm.XMSAvail &= ~(PMPageSizeKB - 1); // Round off to nearest page size\r
if (gvar->pm.xmm.XMSAvail < (PMPageSizeKB * 2)) // Need at least 2 pages\r
goto error;\r
\r
- CPURegs.x.dx = gvar->pm.xmm.XMSAvail;\r
- XMS_CALL(XMS_ALLOC, gvar); // And do the allocation\r
- gvar->pm.xmm.XMSHandle = CPURegs.x.dx;\r
+ _DX = gvar->pm.xmm.XMSAvail;\r
+ XMS_CALL(XMS_ALLOC); // And do the allocation\r
+ gvar->pm.xmm.XMSHandle = _DX;\r
\r
- if (!CPURegs.x.ax) // AJR: bugfix 10/8/92\r
+ if (!_AX) // AJR: bugfix 10/8/92\r
{\r
gvar->pm.xmm.XMSAvail = 0;\r
goto error;\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_XMSCopy(boolean toxms,byte far *addr,word xmspage,word length, global_game_variables_t *gvar)\r
{\r
- XMSD;\r
dword xoffset;\r
struct\r
{\r
__asm {\r
push si\r
}\r
- CPURegs.x.si = (word)©\r
- XMS_CALL(XMS_MOVE, gvar);\r
+ _SI = (word)©\r
+ XMS_CALL(XMS_MOVE);\r
__asm {\r
pop si\r
}\r
- if (!CPURegs.x.ax)\r
+ if (!_AX)\r
{\r
Quit("PML_XMSCopy: Error on copy");\r
//return;\r
void\r
PML_ShutdownXMS(global_game_variables_t *gvar)\r
{\r
- XMSD;\r
- if (gvar->pm.xmm.XMSPresent)\r
+ if (XMSPresent)\r
{\r
- CPURegs.x.dx = gvar->pm.xmm.XMSHandle;\r
- XMS_CALL(XMS_FREE, gvar);\r
- if (CPURegs.h.bl)\r
+ _DX = gvar->pm.xmm.XMSHandle;\r
+ XMS_CALL(XMS_FREE);\r
+ if (_BL)\r
{\r
Quit("PML_ShutdownXMS: Error freeing XMS");\r
//return;\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
+#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
//\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
//\r
// PML_GiveLRUXMSPage() - Returns the page # of the least recently used\r
// (and present) XMS page.\r
-// This routine won't return the XMS page protected (by gvar->pm.xmm.XMSProtectPage)\r
+// This routine won't return the XMS page protected (by XMSProtectPage)\r
//\r
int\r
PML_GiveLRUXMSPage(global_game_variables_t *gvar)\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
\r
gvar->pm.PMPanicMode = false;\r
\r
+ gvar->pm.fi.PageFile = -1;\r
+ gvar->pm.xmm.XMSProtectPage = -1;\r
+\r
// Initialize page list\r
for (i = 0,page = gvar->pm.PMPages;i < gvar->pm.PMNumBlocks;i++,page++)\r
{\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
- gvar->pm.fi.PageFile = -1;\r
- gvar->pm.xmm.XMSProtectPage = -1;\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
projects / 16.git / blobdiff