void INT10_SetupVESA(void) {
/* Put the mode list somewhere in memory */
Bitu i;
i=0;
int10.rom.vesa_modes=RealMake(0xc000,int10.rom.used);
//TODO Maybe add normal vga modes too, but only seems to complicate things
while (ModeList_VGA[i].mode!=0xffff) {
bool canuse_mode=false;
if (!svga.accepts_mode) canuse_mode=true;
else {
if (svga.accepts_mode(ModeList_VGA[i].mode)) canuse_mode=true;
}
if (ModeList_VGA[i].mode>=0x100 && canuse_mode) {
if ((!int10.vesa_oldvbe) || (ModeList_VGA[i].mode<0x120)) {
phys_writew(PhysMake(0xc000,int10.rom.used),ModeList_VGA[i].mode);
int10.rom.used+=2;
}
}
i++;
}
phys_writew(PhysMake(0xc000,int10.rom.used),0xffff);
int10.rom.used+=2;
int10.rom.oemstring=RealMake(0xc000,int10.rom.used);
Bitu len=(Bitu)(strlen(string_oem)+1);
for (i=0;i<len;i++) {
phys_writeb(0xc0000+int10.rom.used++,string_oem[i]);
}
switch (svgaCard) {
case SVGA_S3Trio:
break;
}
callback.setwindow=CALLBACK_Allocate();
callback.pmPalette=CALLBACK_Allocate();
callback.pmStart=CALLBACK_Allocate();
CALLBACK_Setup(callback.setwindow,VESA_SetWindow,CB_RETF, "VESA Real Set Window");
/* Prepare the pmode interface */
int10.rom.pmode_interface=RealMake(0xc000,int10.rom.used);
int10.rom.used += 8; //Skip the byte later used for offsets
/* PM Set Window call */
int10.rom.pmode_interface_window = int10.rom.used - RealOff( int10.rom.pmode_interface );
phys_writew( Real2Phys(int10.rom.pmode_interface) + 0, int10.rom.pmode_interface_window );
callback.pmWindow=CALLBACK_Allocate();
int10.rom.used += (Bit16u)CALLBACK_Setup(callback.pmWindow, VESA_PMSetWindow, CB_RETN, PhysMake(0xc000,int10.rom.used), "VESA PM Set Window");
/* PM Set start call */
int10.rom.pmode_interface_start = int10.rom.used - RealOff( int10.rom.pmode_interface );
phys_writew( Real2Phys(int10.rom.pmode_interface) + 2, int10.rom.pmode_interface_start);
callback.pmStart=CALLBACK_Allocate();
int10.rom.used += (Bit16u)CALLBACK_Setup(callback.pmStart, VESA_PMSetStart, CB_RETN, PhysMake(0xc000,int10.rom.used), "VESA PM Set Start");
/* PM Set Palette call */
int10.rom.pmode_interface_palette = int10.rom.used - RealOff( int10.rom.pmode_interface );
phys_writew( Real2Phys(int10.rom.pmode_interface) + 4, int10.rom.pmode_interface_palette);
callback.pmPalette=CALLBACK_Allocate();
int10.rom.used += (Bit16u)CALLBACK_Setup(callback.pmPalette, VESA_PMSetPalette, CB_RETN, PhysMake(0xc000,int10.rom.used), "VESA PM Set Palette");
/* Finalize the size and clear the required ports pointer */
phys_writew( Real2Phys(int10.rom.pmode_interface) + 6, 0);
int10.rom.pmode_interface_size=int10.rom.used - RealOff( int10.rom.pmode_interface );
}
void fill_smth(void)
{
Bit8u *dst;
Bit32u i;
dst = MemBase + PhysMake(datseg, 0x78da);
for (i = 104; i > 0; i--, dst += 4)
host_writed(dst, 0x7fff7fff);
dst = MemBase + PhysMake(datseg, 0x7a7a);
for (i = 104; i > 0; i--, dst += 4)
host_writed(dst, 0x80018001);
}
Program::Program() {
/* Find the command line and setup the PSP */
psp = new DOS_PSP(dos.psp());
/* Scan environment for filename */
PhysPt envscan=PhysMake(psp->GetEnvironment(),0);
while (mem_readb(envscan)) envscan+=mem_strlen(envscan)+1;
envscan+=3;
CommandTail tail;
MEM_BlockRead(PhysMake(dos.psp(),128),&tail,128);
if (tail.count<127) tail.buffer[tail.count]=0;
else tail.buffer[126]=0;
char filename[256+1];
MEM_StrCopy(envscan,filename,256);
cmd = new CommandLine(filename,tail.buffer);
}
Bit8u VESA_GetSVGAInformation(Bit16u seg,Bit16u off) {
/* Fill 256 byte buffer with VESA information */
PhysPt buffer=PhysMake(seg,off);
Bitu i;
bool vbe2=false;Bit16u vbe2_pos=256+off;
Bitu id=mem_readd(buffer);
if (((id==0x56424532)||(id==0x32454256)) && (!int10.vesa_oldvbe)) vbe2=true;
if (vbe2) {
for (i=0;i<0x200;i++) mem_writeb(buffer+i,0);
} else {
for (i=0;i<0x100;i++) mem_writeb(buffer+i,0);
}
/* Fill common data */
MEM_BlockWrite(buffer,(void *)"VESA",4); //Identification
if (!int10.vesa_oldvbe) mem_writew(buffer+0x04,0x200); //Vesa version 2.0
else mem_writew(buffer+0x04,0x102); //Vesa version 1.2
if (vbe2) {
mem_writed(buffer+0x06,RealMake(seg,vbe2_pos));
for (i=0;i<sizeof(string_oem);i++) real_writeb(seg,vbe2_pos++,string_oem[i]);
mem_writew(buffer+0x14,0x200); //VBE 2 software revision
mem_writed(buffer+0x16,RealMake(seg,vbe2_pos));
for (i=0;i<sizeof(string_vendorname);i++) real_writeb(seg,vbe2_pos++,string_vendorname[i]);
mem_writed(buffer+0x1a,RealMake(seg,vbe2_pos));
for (i=0;i<sizeof(string_productname);i++) real_writeb(seg,vbe2_pos++,string_productname[i]);
mem_writed(buffer+0x1e,RealMake(seg,vbe2_pos));
for (i=0;i<sizeof(string_productrev);i++) real_writeb(seg,vbe2_pos++,string_productrev[i]);
} else {
mem_writed(buffer+0x06,int10.rom.oemstring); //Oemstring
}
mem_writed(buffer+0x0a,0x0); //Capabilities and flags
mem_writed(buffer+0x0e,int10.rom.vesa_modes); //VESA Mode list
mem_writew(buffer+0x12,(Bit16u)(vga.vmemsize/(64*1024))); // memory size in 64kb blocks
return VESA_SUCCESS;
}
static Bitu PROGRAMS_Handler(void) {
/* This sets up everything for a program start up call */
Bitu size=sizeof(Bit8u);
Bit8u index;
/* Read the index from program code in memory */
PhysPt reader=PhysMake(dos.psp(),256+sizeof(exe_block));
HostPt writer=(HostPt)&index;
for (;size>0;size--) *writer++=mem_readb(reader++);
Program * new_program = NULL;
if (index > internal_progs.size()) E_Exit("something is messing with the memory");
InternalProgramEntry *ipe = internal_progs[index];
if (ipe == NULL) E_Exit("Attempt to run internal program slot with nothing allocated");
if (ipe->main == NULL) return CBRET_NONE;
PROGRAMS_Main * handler = internal_progs[index]->main;
(*handler)(&new_program);
try { /* "BOOT" can throw an exception (int(2)) */
new_program->Run();
delete new_program;
}
catch (...) { /* well if it happened, free the program anyway to avert memory leaks */
delete new_program;
throw; /* pass it on */
}
return CBRET_NONE;
}
bool Program::SetEnv(const char * entry,const char * new_string) {
PhysPt env_read=PhysMake(psp->GetEnvironment(),0);
PhysPt env_write=env_read;
char env_string[1024+1];
do {
MEM_StrCopy(env_read,env_string,1024);
if (!env_string[0]) break;
env_read += (PhysPt)(strlen(env_string)+1);
if (!strchr(env_string,'=')) continue; /* Remove corrupt entry? */
if ((strncasecmp(entry,env_string,strlen(entry))==0) &&
env_string[strlen(entry)]=='=') continue;
MEM_BlockWrite(env_write,env_string,(Bitu)(strlen(env_string)+1));
env_write += (PhysPt)(strlen(env_string)+1);
} while (1);
/* TODO Maybe save the program name sometime. not really needed though */
/* Save the new entry */
if (new_string[0]) {
std::string bigentry(entry);
for (std::string::iterator it = bigentry.begin(); it != bigentry.end(); ++it) *it = toupper(*it);
sprintf(env_string,"%s=%s",bigentry.c_str(),new_string);
// sprintf(env_string,"%s=%s",entry,new_string); //oldcode
MEM_BlockWrite(env_write,env_string,(Bitu)(strlen(env_string)+1));
env_write += (PhysPt)(strlen(env_string)+1);
}
/* Clear out the final piece of the environment */
mem_writed(env_write,0);
return true;
}
Bit8u VESA_GetSVGAInformation(Bit16u seg,Bit16u off) {
/* Fill 256 byte buffer with VESA information */
PhysPt buffer=PhysMake(seg,off);
Bitu i;
bool vbe2=false;Bit16u vbe2_pos;
Bitu id=mem_readd(buffer);
if (((id==0x56424532)||(id==0x32454256)) && (!int10.vesa_oldvbe)) vbe2=true;
if (vbe2) {
for (i=0;i<0x200;i++) mem_writeb(buffer+i,0);
} else {
for (i=0;i<0x100;i++) mem_writeb(buffer+i,0);
}
/* Fill common data */
MEM_BlockWrite(buffer,(void *)"VESA",4); //Identification
if (!int10.vesa_oldvbe) mem_writew(buffer+0x04,0x200); //Vesa version 2.0
else mem_writew(buffer+0x04,0x102); //Vesa version 1.2
if (vbe2) {
vbe2_pos=256+off;
mem_writed(buffer+0x06,RealMake(seg,vbe2_pos));
for (i=0;i<sizeof(string_oem);i++) real_writeb(seg,vbe2_pos++,(Bit8u)string_oem[i]);
mem_writew(buffer+0x14,0x200); //VBE 2 software revision
mem_writed(buffer+0x16,RealMake(seg,vbe2_pos));
for (i=0;i<sizeof(string_vendorname);i++) real_writeb(seg,vbe2_pos++,(Bit8u)string_vendorname[i]);
mem_writed(buffer+0x1a,RealMake(seg,vbe2_pos));
for (i=0;i<sizeof(string_productname);i++) real_writeb(seg,vbe2_pos++,(Bit8u)string_productname[i]);
mem_writed(buffer+0x1e,RealMake(seg,vbe2_pos));
for (i=0;i<sizeof(string_productrev);i++) real_writeb(seg,vbe2_pos++,(Bit8u)string_productrev[i]);
} else {
vbe2_pos=0x20+off;
mem_writed(buffer+0x06,int10.rom.oemstring); //Oemstring
}
if (vesa_bios_modelist_in_info) {
/* put the modelist into the VBE struct itself, as modern BIOSes like to do.
* NOTICE: This limits the modelist to what is able to fit! Extended modes may not fit, which is why the option is OFF by default. */
uint16_t modesg = int10.rom.vesa_modes >> 16;
uint16_t modoff = int10.rom.vesa_modes & 0xFFFF;
uint16_t m;
mem_writed(buffer+0x0e,RealMake(seg,vbe2_pos)); //VESA Mode list
do {
if (vbe2) {
if (vbe2_pos >= (509+off)) break;
}
else {
if (vbe2_pos >= (253+off)) break;
}
m = real_readw(modesg,modoff);
if (m == 0xFFFF) break;
real_writew(seg,vbe2_pos,m);
vbe2_pos += 2;
modoff += 2;
} while (1);
real_writew(seg,vbe2_pos,0xFFFF);
}
else {
Bitu Program::GetEnvCount(void) {
PhysPt env_read=PhysMake(psp->GetEnvironment(),0);
Bitu num=0;
while (mem_readb(env_read)!=0) {
for (;mem_readb(env_read);env_read++) {};
env_read++;
num++;
}
return num;
}
static bool MakeEnv(char * name,Bit16u * segment) {
/* If segment to copy environment is 0 copy the caller's environment */
DOS_PSP psp(dos.psp());
PhysPt envread,envwrite;
Bit16u envsize=1;
bool parentenv=true;
if (*segment==0) {
if (!psp.GetEnvironment()) parentenv=false; //environment seg=0
envread=PhysMake(psp.GetEnvironment(),0);
} else {
if (!*segment) parentenv=false; //environment seg=0
envread=PhysMake(*segment,0);
}
if (parentenv) {
for (envsize=0; ;envsize++) {
if (envsize>=MAXENV - ENV_KEEPFREE) {
DOS_SetError(DOSERR_ENVIRONMENT_INVALID);
return false;
}
if (mem_readw(envread+envsize)==0) break;
}
envsize += 2; /* account for trailing \0\0 */
}
Bit16u size=long2para(envsize+ENV_KEEPFREE);
if (!DOS_AllocateMemory(segment,&size)) return false;
envwrite=PhysMake(*segment,0);
if (parentenv) {
MEM_BlockCopy(envwrite,envread,envsize);
// mem_memcpy(envwrite,envread,envsize);
envwrite+=envsize;
} else {
mem_writeb(envwrite++,0);
}
mem_writew(envwrite,1);
envwrite+=2;
char namebuf[DOS_PATHLENGTH];
if (DOS_Canonicalize(name,namebuf)) {
MEM_BlockWrite(envwrite,namebuf,strlen(namebuf)+1);
return true;
} else return false;
}
static bool LocateEnvironmentBlock(PhysPt &env_base,PhysPt &env_fence,Bitu env_seg) {
if (env_seg == 0) {
/* The DOS program might have freed it's environment block perhaps. */
return false;
}
DOS_MCB env_mcb(env_seg-1); /* read the environment block's MCB to determine how large it is */
env_base = PhysMake(env_seg,0);
env_fence = env_base + (env_mcb.GetSize() << 4);
return true;
}
bool Program::GetEnvNum(Bitu num,std::string & result) {
char env_string[1024+1];
PhysPt env_read=PhysMake(psp->GetEnvironment(),0);
do {
MEM_StrCopy(env_read,env_string,1024);
if (!env_string[0]) break;
if (!num) { result=env_string;return true;}
env_read += (PhysPt)(strlen(env_string)+1);
num--;
} while (1);
return false;
}
static Bitu PROGRAMS_Handler(void) {
/* This sets up everything for a program start up call */
Bitu size=sizeof(Bit8u);
Bit8u index;
/* Read the index from program code in memory */
PhysPt reader=PhysMake(dos.psp(),256+sizeof(exe_block));
HostPt writer=(HostPt)&index;
for (;size>0;size--) *writer++=mem_readb(reader++);
Program * new_program;
if(index > internal_progs.size()) E_Exit("something is messing with the memory");
PROGRAMS_Main * handler = internal_progs[index];
(*handler)(&new_program);
new_program->Run();
delete new_program;
return CBRET_NONE;
}
void SVGA_Setup_ParadisePVGA1A(void) {
svga.write_p3cf = &write_p3cf_pvga1a;
svga.read_p3cf = &read_p3cf_pvga1a;
svga.set_video_mode = &FinishSetMode_PVGA1A;
svga.determine_mode = &DetermineMode_PVGA1A;
svga.set_clock = &SetClock_PVGA1A;
svga.get_clock = &GetClock_PVGA1A;
svga.accepts_mode = &AcceptsMode_PVGA1A;
VGA_SetClock(0,CLK_25);
VGA_SetClock(1,CLK_28);
VGA_SetClock(2,32400); // could not find documentation
VGA_SetClock(3,35900);
// Adjust memory, default to 512K
if (vga.vmemsize == 0)
vga.vmemsize = 512*1024;
if (vga.vmemsize < 512*1024) {
vga.vmemsize = 256*1024;
pvga1a.PR1 = 1<<6;
} else if (vga.vmemsize > 512*1024) {
vga.vmemsize = 1024*1024;
pvga1a.PR1 = 3<<6;
} else {
pvga1a.PR1 = 2<<6;
}
// Paradise ROM signature
PhysPt rom_base=PhysMake(0xc000,0);
phys_writeb(rom_base+0x007d,'V');
phys_writeb(rom_base+0x007e,'G');
phys_writeb(rom_base+0x007f,'A');
phys_writeb(rom_base+0x0080,'=');
IO_Write(0x3cf, 0x05); // Enable!
}
void copy_3d_to_screen(void)
{
Bit8u *src, *t_src;
PhysPt dst, t_dst;
signed short i, j;
src = Real2Host(ds_readd(0xb128));
dst = PhysMake(0xa000, 0x28f);
i = 134;
do {
t_src = src;
t_dst = dst;
for (j = 52; j > 0; j--) {
mem_writed_inline(t_dst, host_readd(t_src));
t_dst+=4;
t_src+=4;
}
src += 320;
dst += 320;
i--;
} while (i != 0);
}
bool Program::GetEnvStr(const char * entry,std::string & result) {
/* Walk through the internal environment and see for a match */
PhysPt env_read=PhysMake(psp->GetEnvironment(),0);
char env_string[1024+1];
result.erase();
if (!entry[0]) return false;
do {
MEM_StrCopy(env_read,env_string,1024);
if (!env_string[0]) return false;
env_read += (PhysPt)(strlen(env_string)+1);
char* equal = strchr(env_string,'=');
if (!equal) continue;
/* replace the = with \0 to get the length */
*equal = 0;
if (strlen(env_string) != strlen(entry)) continue;
if (strcasecmp(entry,env_string)!=0) continue;
/* restore the = to get the original result */
*equal = '=';
result = env_string;
return true;
} while (1);
return false;
}
void MOUSE_Init(Section* /*sec*/) {
// Callback for mouse interrupt 0x33
call_int33=CALLBACK_Allocate();
// RealPt i33loc=RealMake(CB_SEG+1,(call_int33*CB_SIZE)-0x10);
RealPt i33loc=RealMake(DOS_GetMemory(0x1)-1,0x10);
CALLBACK_Setup(call_int33,&INT33_Handler,CB_MOUSE,Real2Phys(i33loc),"Mouse");
// Wasteland needs low(seg(int33))!=0 and low(ofs(int33))!=0
real_writed(0,0x33<<2,i33loc);
call_mouse_bd=CALLBACK_Allocate();
CALLBACK_Setup(call_mouse_bd,&MOUSE_BD_Handler,CB_RETF8,
PhysMake(RealSeg(i33loc),RealOff(i33loc)+2),"MouseBD");
// pseudocode for CB_MOUSE (including the special backdoor entry point):
// jump near i33hd
// callback MOUSE_BD_Handler
// retf 8
// label i33hd:
// callback INT33_Handler
// iret
// Callback for ps2 irq
call_int74=CALLBACK_Allocate();
CALLBACK_Setup(call_int74,&INT74_Handler,CB_IRQ12,"int 74");
// pseudocode for CB_IRQ12:
// push ds
// push es
// pushad
// sti
// callback INT74_Handler
// doesn't return here, but rather to CB_IRQ12_RET
// (ps2 callback/user callback inbetween if requested)
int74_ret_callback=CALLBACK_Allocate();
CALLBACK_Setup(int74_ret_callback,&MOUSE_UserInt_CB_Handler,CB_IRQ12_RET,"int 74 ret");
// pseudocode for CB_IRQ12_RET:
// callback MOUSE_UserInt_CB_Handler
// cli
// mov al, 0x20
// out 0xa0, al
// out 0x20, al
// popad
// pop es
// pop ds
// iret
Bit8u hwvec=(MOUSE_IRQ>7)?(0x70+MOUSE_IRQ-8):(0x8+MOUSE_IRQ);
RealSetVec(hwvec,CALLBACK_RealPointer(call_int74));
// Callback for ps2 user callback handling
useps2callback = false; ps2callbackinit = false;
call_ps2=CALLBACK_Allocate();
CALLBACK_Setup(call_ps2,&PS2_Handler,CB_RETF,"ps2 bios callback");
ps2_callback=CALLBACK_RealPointer(call_ps2);
memset(&mouse,0,sizeof(mouse));
mouse.hidden = 1; //Hide mouse on startup
mouse.timer_in_progress = false;
mouse.mode = 0xFF; //Non existing mode
mouse.sub_mask=0;
mouse.sub_seg=0x6362; // magic value
mouse.sub_ofs=0;
Mouse_ResetHardware();
Mouse_Reset();
Mouse_SetSensitivity(50,50,50);
}
void SHELL_Init() {
/* Add messages */
MSG_Add("SHELL_ILLEGAL_PATH","Illegal Path.\n");
MSG_Add("SHELL_CMD_HELP","If you want a list of all supported commands type \033[33;1mhelp /all\033[0m .\nA short list of the most often used commands:\n");
MSG_Add("SHELL_CMD_ECHO_ON","ECHO is on.\n");
MSG_Add("SHELL_CMD_ECHO_OFF","ECHO is off.\n");
MSG_Add("SHELL_ILLEGAL_SWITCH","Illegal switch: %s.\n");
MSG_Add("SHELL_MISSING_PARAMETER","Required parameter missing.\n");
MSG_Add("SHELL_CMD_CHDIR_ERROR","Unable to change to: %s.\n");
MSG_Add("SHELL_CMD_CHDIR_HINT","To change to different drive type \033[31m%c:\033[0m\n");
MSG_Add("SHELL_CMD_CHDIR_HINT_2","directoryname is longer than 8 characters and/or contains spaces.\nTry \033[31mcd %s\033[0m\n");
MSG_Add("SHELL_CMD_CHDIR_HINT_3","You are still on drive Z:, change to a mounted drive with \033[31mC:\033[0m.\n");
MSG_Add("SHELL_CMD_MKDIR_ERROR","Unable to make: %s.\n");
MSG_Add("SHELL_CMD_RMDIR_ERROR","Unable to remove: %s.\n");
MSG_Add("SHELL_CMD_DEL_ERROR","Unable to delete: %s.\n");
MSG_Add("SHELL_SYNTAXERROR","The syntax of the command is incorrect.\n");
MSG_Add("SHELL_CMD_SET_NOT_SET","Environment variable %s not defined.\n");
MSG_Add("SHELL_CMD_SET_OUT_OF_SPACE","Not enough environment space left.\n");
MSG_Add("SHELL_CMD_IF_EXIST_MISSING_FILENAME","IF EXIST: Missing filename.\n");
MSG_Add("SHELL_CMD_IF_ERRORLEVEL_MISSING_NUMBER","IF ERRORLEVEL: Missing number.\n");
MSG_Add("SHELL_CMD_IF_ERRORLEVEL_INVALID_NUMBER","IF ERRORLEVEL: Invalid number.\n");
MSG_Add("SHELL_CMD_GOTO_MISSING_LABEL","No label supplied to GOTO command.\n");
MSG_Add("SHELL_CMD_GOTO_LABEL_NOT_FOUND","GOTO: Label %s not found.\n");
MSG_Add("SHELL_CMD_FILE_NOT_FOUND","File %s not found.\n");
MSG_Add("SHELL_CMD_FILE_EXISTS","File %s already exists.\n");
MSG_Add("SHELL_CMD_DIR_INTRO","Directory of %s.\n");
MSG_Add("SHELL_CMD_DIR_BYTES_USED","%5d File(s) %17s Bytes.\n");
MSG_Add("SHELL_CMD_DIR_BYTES_FREE","%5d Dir(s) %17s Bytes free.\n");
MSG_Add("SHELL_EXECUTE_DRIVE_NOT_FOUND","Drive %c does not exist!\nYou must \033[31mmount\033[0m it first. Type \033[1;33mintro\033[0m or \033[1;33mintro mount\033[0m for more information.\n");
MSG_Add("SHELL_EXECUTE_ILLEGAL_COMMAND","Illegal command: %s.\n");
MSG_Add("SHELL_CMD_PAUSE","Press any key to continue.\n");
MSG_Add("SHELL_CMD_PAUSE_HELP","Waits for 1 keystroke to continue.\n");
MSG_Add("SHELL_CMD_COPY_FAILURE","Copy failure : %s.\n");
MSG_Add("SHELL_CMD_COPY_SUCCESS"," %d File(s) copied.\n");
MSG_Add("SHELL_CMD_SUBST_NO_REMOVE","Removing drive not supported. Doing nothing.\n");
MSG_Add("SHELL_CMD_SUBST_FAILURE","SUBST failed. You either made an error in your commandline or the target drive is already used.\nIt's only possible to use SUBST on Local drives");
MSG_Add("SHELL_STARTUP_BEGIN",
"\033[44;1m\xC9\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
"\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
"\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xBB\n"
"\xBA \033[32mWelcome to DOSBox v%-8s\033[37m \xBA\n"
"\xBA \xBA\n"
// "\xBA DOSBox runs real and protected mode games. \xBA\n"
"\xBA For a short introduction for new users type: \033[33mINTRO\033[37m \xBA\n"
"\xBA For supported shell commands type: \033[33mHELP\033[37m \xBA\n"
"\xBA \xBA\n"
"\xBA To adjust the emulated CPU speed, use \033[31mctrl-F11\033[37m and \033[31mctrl-F12\033[37m. \xBA\n"
"\xBA To activate the keymapper \033[31mctrl-F1\033[37m. \xBA\n"
"\xBA For more information read the \033[36mREADME\033[37m file in the DOSBox directory. \xBA\n"
"\xBA \xBA\n"
);
MSG_Add("SHELL_STARTUP_CGA","\xBA DOSBox supports Composite CGA mode. \xBA\n"
"\xBA Use \033[31m(alt-)F11\033[37m to change the colours when in this mode. \xBA\n"
"\xBA \xBA\n"
);
MSG_Add("SHELL_STARTUP_HERC","\xBA Use \033[31mF11\033[37m to cycle through white, amber, and green monochrome color. \xBA\n"
"\xBA \xBA\n"
);
MSG_Add("SHELL_STARTUP_DEBUG",
"\xBA Press \033[31malt-Pause\033[37m to enter the debugger or start the exe with \033[33mDEBUG\033[37m. \xBA\n"
"\xBA \xBA\n"
);
MSG_Add("SHELL_STARTUP_END",
"\xBA \033[32mHAVE FUN!\033[37m \xBA\n"
"\xBA \033[32mThe DOSBox Team \033[33mhttp://www.dosbox.com\033[37m \xBA\n"
"\xC8\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
"\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
"\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xBC\033[0m\n"
//"\n" //Breaks the startup message if you type a mount and a drive change.
);
MSG_Add("SHELL_CMD_CHDIR_HELP","Displays/changes the current directory.\n");
MSG_Add("SHELL_CMD_CHDIR_HELP_LONG","CHDIR [drive:][path]\n"
"CHDIR [..]\n"
"CD [drive:][path]\n"
"CD [..]\n\n"
" .. Specifies that you want to change to the parent directory.\n\n"
"Type CD drive: to display the current directory in the specified drive.\n"
"Type CD without parameters to display the current drive and directory.\n");
MSG_Add("SHELL_CMD_CLS_HELP","Clear screen.\n");
MSG_Add("SHELL_CMD_DIR_HELP","Directory View.\n");
MSG_Add("SHELL_CMD_ECHO_HELP","Display messages and enable/disable command echoing.\n");
MSG_Add("SHELL_CMD_EXIT_HELP","Exit from the shell.\n");
MSG_Add("SHELL_CMD_HELP_HELP","Show help.\n");
MSG_Add("SHELL_CMD_MKDIR_HELP","Make Directory.\n");
MSG_Add("SHELL_CMD_MKDIR_HELP_LONG","MKDIR [drive:][path]\n"
"MD [drive:][path]\n");
MSG_Add("SHELL_CMD_RMDIR_HELP","Remove Directory.\n");
MSG_Add("SHELL_CMD_RMDIR_HELP_LONG","RMDIR [drive:][path]\n"
"RD [drive:][path]\n");
MSG_Add("SHELL_CMD_SET_HELP","Change environment variables.\n");
MSG_Add("SHELL_CMD_IF_HELP","Performs conditional processing in batch programs.\n");
MSG_Add("SHELL_CMD_GOTO_HELP","Jump to a labeled line in a batch script.\n");
MSG_Add("SHELL_CMD_SHIFT_HELP","Leftshift commandline parameters in a batch script.\n");
MSG_Add("SHELL_CMD_TYPE_HELP","Display the contents of a text-file.\n");
MSG_Add("SHELL_CMD_TYPE_HELP_LONG","TYPE [drive:][path][filename]\n");
MSG_Add("SHELL_CMD_REM_HELP","Add comments in a batch file.\n");
MSG_Add("SHELL_CMD_REM_HELP_LONG","REM [comment]\n");
MSG_Add("SHELL_CMD_NO_WILD","This is a simple version of the command, no wildcards allowed!\n");
MSG_Add("SHELL_CMD_RENAME_HELP","Renames one or more files.\n");
MSG_Add("SHELL_CMD_RENAME_HELP_LONG","RENAME [drive:][path]filename1 filename2.\n"
"REN [drive:][path]filename1 filename2.\n\n"
"Note that you can not specify a new drive or path for your destination file.\n");
MSG_Add("SHELL_CMD_DELETE_HELP","Removes one or more files.\n");
MSG_Add("SHELL_CMD_COPY_HELP","Copy files.\n");
MSG_Add("SHELL_CMD_CALL_HELP","Start a batch file from within another batch file.\n");
MSG_Add("SHELL_CMD_SUBST_HELP","Assign an internal directory to a drive.\n");
MSG_Add("SHELL_CMD_LOADHIGH_HELP","Loads a program into upper memory (requires xms=true,umb=true).\n");
MSG_Add("SHELL_CMD_CHOICE_HELP","Waits for a keypress and sets ERRORLEVEL.\n");
MSG_Add("SHELL_CMD_CHOICE_HELP_LONG","CHOICE [/C:choices] [/N] [/S] text\n"
" /C[:]choices - Specifies allowable keys. Default is: yn.\n"
" /N - Do not display the choices at end of prompt.\n"
" /S - Enables case-sensitive choices to be selected.\n"
" text - The text to display as a prompt.\n");
MSG_Add("SHELL_CMD_ATTRIB_HELP","Does nothing. Provided for compatibility.\n");
MSG_Add("SHELL_CMD_PATH_HELP","Provided for compatibility.\n");
MSG_Add("SHELL_CMD_VER_HELP","View and set the reported DOS version.\n");
MSG_Add("SHELL_CMD_VER_VER","DOSBox version %s. Reported DOS version %d.%02d.\n");
#ifdef IPHONEOS
MSG_Add("SHELL_CMD_UNZIP_HELP","Extract zip file to current directory.\n");
#endif
/* Regular startup */
call_shellstop=CALLBACK_Allocate();
/* Setup the startup CS:IP to kill the last running machine when exitted */
RealPt newcsip=CALLBACK_RealPointer(call_shellstop);
SegSet16(cs,RealSeg(newcsip));
reg_ip=RealOff(newcsip);
CALLBACK_Setup(call_shellstop,shellstop_handler,CB_IRET,"shell stop");
PROGRAMS_MakeFile("COMMAND.COM",SHELL_ProgramStart);
/* Now call up the shell for the first time */
Bit16u psp_seg=DOS_FIRST_SHELL;
Bit16u env_seg=DOS_FIRST_SHELL+19; //DOS_GetMemory(1+(4096/16))+1;
Bit16u stack_seg=DOS_GetMemory(2048/16);
SegSet16(ss,stack_seg);
reg_sp=2046;
/* Set up int 24 and psp (Telarium games) */
real_writeb(psp_seg+16+1,0,0xea); /* far jmp */
real_writed(psp_seg+16+1,1,real_readd(0,0x24*4));
real_writed(0,0x24*4,((Bit32u)psp_seg<<16) | ((16+1)<<4));
/* Set up int 23 to "int 20" in the psp. Fixes what.exe */
real_writed(0,0x23*4,((Bit32u)psp_seg<<16));
/* Setup MCBs */
DOS_MCB pspmcb((Bit16u)(psp_seg-1));
pspmcb.SetPSPSeg(psp_seg); // MCB of the command shell psp
pspmcb.SetSize(0x10+2);
pspmcb.SetType(0x4d);
DOS_MCB envmcb((Bit16u)(env_seg-1));
envmcb.SetPSPSeg(psp_seg); // MCB of the command shell environment
envmcb.SetSize(DOS_MEM_START-env_seg);
envmcb.SetType(0x4d);
/* Setup environment */
PhysPt env_write=PhysMake(env_seg,0);
MEM_BlockWrite(env_write,path_string,(Bitu)(strlen(path_string)+1));
env_write += (PhysPt)(strlen(path_string)+1);
MEM_BlockWrite(env_write,comspec_string,(Bitu)(strlen(comspec_string)+1));
env_write += (PhysPt)(strlen(comspec_string)+1);
mem_writeb(env_write++,0);
mem_writew(env_write,1);
env_write+=2;
MEM_BlockWrite(env_write,full_name,(Bitu)(strlen(full_name)+1));
DOS_PSP psp(psp_seg);
psp.MakeNew(0);
dos.psp(psp_seg);
/* The start of the filetable in the psp must look like this:
* 01 01 01 00 02
* In order to achieve this: First open 2 files. Close the first and
* duplicate the second (so the entries get 01) */
Bit16u dummy=0;
DOS_OpenFile("CON",OPEN_READWRITE,&dummy); /* STDIN */
DOS_OpenFile("CON",OPEN_READWRITE,&dummy); /* STDOUT */
DOS_CloseFile(0); /* Close STDIN */
DOS_ForceDuplicateEntry(1,0); /* "new" STDIN */
DOS_ForceDuplicateEntry(1,2); /* STDERR */
DOS_OpenFile("CON",OPEN_READWRITE,&dummy); /* STDAUX */
DOS_OpenFile("CON",OPEN_READWRITE,&dummy); /* STDPRN */
psp.SetParent(psp_seg);
/* Set the environment */
psp.SetEnvironment(env_seg);
/* Set the command line for the shell start up */
CommandTail tail;
tail.count=(Bit8u)strlen(init_line);
strcpy(tail.buffer,init_line);
MEM_BlockWrite(PhysMake(psp_seg,128),&tail,128);
/* Setup internal DOS Variables */
dos.dta(RealMake(psp_seg,0x80));
dos.psp(psp_seg);
SHELL_ProgramStart(&first_shell);
first_shell->Run();
delete first_shell;
first_shell = 0;//Make clear that it shouldn't be used anymore
}
void DOS_InfoBlock::SetLocation(Bit16u segment) {
seg = segment;
pt=PhysMake(seg,0);
/* Clear the initial Block */
for(Bitu i=0;i<sizeof(sDIB);i++) mem_writeb(pt+i,0xff);
for(Bitu i=0;i<14;i++) mem_writeb(pt+i,0);
sSave(sDIB,regCXfrom5e,(Bit16u)0);
sSave(sDIB,countLRUcache,(Bit16u)0);
sSave(sDIB,countLRUopens,(Bit16u)0);
sSave(sDIB,protFCBs,(Bit16u)0);
sSave(sDIB,specialCodeSeg,(Bit16u)0);
sSave(sDIB,joindedDrives,(Bit8u)0);
sSave(sDIB,lastdrive,(Bit8u)0x01);//increase this if you add drives to cds-chain
sSave(sDIB,diskInfoBuffer,RealMake(segment,offsetof(sDIB,diskBufferHeadPt)));
sSave(sDIB,setverPtr,(Bit32u)0);
sSave(sDIB,a20FixOfs,(Bit16u)0);
sSave(sDIB,pspLastIfHMA,(Bit16u)0);
sSave(sDIB,blockDevices,(Bit8u)0);
sSave(sDIB,bootDrive,(Bit8u)0);
sSave(sDIB,useDwordMov,(Bit8u)1);
sSave(sDIB,extendedSize,(Bit16u)(MEM_TotalPages()*4-1024));
sSave(sDIB,magicWord,(Bit16u)0x0001); // dos5+
sSave(sDIB,sharingCount,(Bit16u)0);
sSave(sDIB,sharingDelay,(Bit16u)0);
sSave(sDIB,ptrCONinput,(Bit16u)0); // no unread input available
sSave(sDIB,maxSectorLength,(Bit16u)0x200);
sSave(sDIB,dirtyDiskBuffers,(Bit16u)0);
sSave(sDIB,lookaheadBufPt,(Bit32u)0);
sSave(sDIB,lookaheadBufNumber,(Bit16u)0);
sSave(sDIB,bufferLocation,(Bit8u)0); // buffer in base memory, no workspace
sSave(sDIB,workspaceBuffer,(Bit32u)0);
sSave(sDIB,minMemForExec,(Bit16u)0);
sSave(sDIB,memAllocScanStart,(Bit16u)DOS_MEM_START);
sSave(sDIB,startOfUMBChain,(Bit16u)0xffff);
sSave(sDIB,chainingUMB,(Bit8u)0);
sSave(sDIB,nulNextDriver,(Bit32u)0xffffffff);
sSave(sDIB,nulAttributes,(Bit16u)0x8004);
sSave(sDIB,nulStrategy,(Bit32u)0x00000000);
sSave(sDIB,nulString[0],(Bit8u)0x4e);
sSave(sDIB,nulString[1],(Bit8u)0x55);
sSave(sDIB,nulString[2],(Bit8u)0x4c);
sSave(sDIB,nulString[3],(Bit8u)0x20);
sSave(sDIB,nulString[4],(Bit8u)0x20);
sSave(sDIB,nulString[5],(Bit8u)0x20);
sSave(sDIB,nulString[6],(Bit8u)0x20);
sSave(sDIB,nulString[7],(Bit8u)0x20);
/* Create a fake SFT, so programs think there are 100 file handles */
Bit16u sftOffset=offsetof(sDIB,firstFileTable)+0xa2;
sSave(sDIB,firstFileTable,RealMake(segment,sftOffset));
real_writed(segment,sftOffset+0x00,RealMake(segment+0x26,0)); //Next File Table
real_writew(segment,sftOffset+0x04,100); //File Table supports 100 files
real_writed(segment+0x26,0x00,0xffffffff); //Last File Table
real_writew(segment+0x26,0x04,100); //File Table supports 100 files
}
//Initializer - is startet if executed file is SCHICKM.EXE/BLADEM.EXE or GEN.EXE
//Returns true if the desired programm is started
bool init_schick(char *name, unsigned short reloc, unsigned short _cs, unsigned short ip)
{
char borsig[] = "Borland C++ - Copyright 1991 Borland Intl.";
char fname[81];
int ver;
schick_get_fname(fname, name);
if (strcmp(fname, "schickm.exe")
&& strcmp(fname, "bladem.exe")
&& strcmp(fname, "gen.exe")) return false;
/* Check CS:IP in the EXE-Header are 0:0
* and the first executed instruction is mov dx,i16 */
if (_cs != 0 || ip != 0 || real_readb(reloc+_cs, ip) != 0xba)
return false;
/* Show CS:IP on the virtual machine and the pointer to 0:0 */
D1_TRAC("\n\nCS:IP 0x%x:0x%x\tMemBase: %p\n", reloc, ip, MemBase);
/* Read and show the Datasegment */
datseg_bak = datseg;
datseg = real_readw(reloc, ip+1);
p_datseg_bak = p_datseg;
p_datseg = MemBase + PhysMake(datseg, 0);
D1_TRAC("Dseg: 0x%X\n", datseg);
/* Check if the start of the Datasegment is Borland C++ */
if (host_readd(p_datseg) != 0 ||
strcmp((char*)MemBase+PhysMake(datseg, 4), borsig)) {
D1_ERR("Kein Borland C++ Kompilat!\n");
return false;
}
/* check for the game program */
if (!strcmp(fname, "schickm.exe") || !strcmp(fname, "bladem.exe")) {
reloc_game = reloc;
ver = schick_get_version((char*)p_datseg);
if (ver == 0) {
D1_ERR("Unbekannte Version von DSA1\n");
return false;
}
D1_INFO("\nDSA1 Schicksalsklinge gefunden V%d.%02d_%s\n",
ver / 100, ver % 100, schick_is_en() ? "en": "de");
/* enable profiler only on this version */
if (ver == 302 && !schick_is_en()) {
D1_INFO("Starte Profiler\n");
/* enable status comperator */
schick_status_init();
schick_timer_enable();
schick++;
}
}
/* check for the character generation program */
if (!strcmp(fname, "gen.exe")) {
reloc_gen = reloc;
ver = schick_gen_get_version((char*)p_datseg);
if (ver == 0) {
D1_ERR("Unbekannte Version von DSA1 Generierung\n");
return false;
}
D1_INFO("DSA1 Generierung gefunden V%d.%02d_%s\n",
ver / 100, ver % 100, schick_gen_is_en() ? "en": "de");
/* This happens only gen is started from the game.
We have to save some values. */
if (!fromgame && schick && !gen) {
if (schick_get_version((char*)p_datseg_bak) == 302 && !schick_is_en()) {
schick_status_disable();
schick_timer_disable();
}
schick--;
fromgame++;
D1_INFO("Gen gestartet\nreloc (0x%x)\n",
(unsigned int)reloc_gen);
}
/* enable profiler only on this version */
if (ver == 105 && !schick_is_en()) {
D1_INFO("Starte Profiler\n");
gen++;
}
}
return true;
}
bool device_EMM::ReadFromControlChannel(PhysPt bufptr,Bit16u size,Bit16u * retcode) {
Bitu subfct=mem_readb(bufptr);
switch (subfct) {
case 0x00:
if (size!=6) return false;
mem_writew(bufptr+0x00,0x0023); // ID
mem_writed(bufptr+0x02,0); // private API entry point
*retcode=6;
return true;
case 0x01: {
if (size!=6) return false;
if (GEMMIS_seg==0) GEMMIS_seg=DOS_GetMemory(0x20);
PhysPt GEMMIS_addr=PhysMake(GEMMIS_seg,0);
mem_writew(GEMMIS_addr+0x00,0x0004); // flags
mem_writew(GEMMIS_addr+0x02,0x019d); // size of this structure
mem_writew(GEMMIS_addr+0x04,GEMMIS_VERSION); // version 1.0 (provide ems information only)
mem_writed(GEMMIS_addr+0x06,0); // reserved
/* build non-EMS frames (0-0xe000) */
for (Bitu frct=0; frct<EMM_PAGEFRAME4K/4; frct++) {
mem_writeb(GEMMIS_addr+0x0a+frct*6,0x00); // frame type: NONE
mem_writeb(GEMMIS_addr+0x0b+frct*6,0xff); // owner: NONE
mem_writew(GEMMIS_addr+0x0c+frct*6,0xffff); // non-EMS frame
mem_writeb(GEMMIS_addr+0x0e + frct*6,0xff); // EMS page number (NONE)
mem_writeb(GEMMIS_addr+0x0f+frct*6,0xaa); // flags: direct mapping
}
/* build EMS page frame (0xe000-0xf000) */
for (Bitu frct=0; frct<0x10/4; frct++) {
Bitu frnr=(frct+EMM_PAGEFRAME4K/4)*6;
mem_writeb(GEMMIS_addr+0x0a+frnr,0x03); // frame type: EMS frame in 64k page
mem_writeb(GEMMIS_addr+0x0b+frnr,0xff); // owner: NONE
mem_writew(GEMMIS_addr+0x0c+frnr,0x7fff); // no logical page number
mem_writeb(GEMMIS_addr+0x0e + frnr,(Bit8u)(frct&0xff)); // physical EMS page number
mem_writeb(GEMMIS_addr+0x0f+frnr,0x00); // EMS frame
}
/* build non-EMS ROM frames (0xf000-0x10000) */
for (Bitu frct=(EMM_PAGEFRAME4K+0x10)/4; frct<0xf0/4; frct++) {
mem_writeb(GEMMIS_addr+0x0a+frct*6,0x00); // frame type: NONE
mem_writeb(GEMMIS_addr+0x0b+frct*6,0xff); // owner: NONE
mem_writew(GEMMIS_addr+0x0c+frct*6,0xffff); // non-EMS frame
mem_writeb(GEMMIS_addr+0x0e + frct*6,0xff); // EMS page number (NONE)
mem_writeb(GEMMIS_addr+0x0f+frct*6,0xaa); // flags: direct mapping
}
mem_writeb(GEMMIS_addr+0x18a,0x74); // ???
mem_writeb(GEMMIS_addr+0x18b,0x00); // no UMB descriptors following
mem_writeb(GEMMIS_addr+0x18c,0x01); // 1 EMS handle info recort
mem_writew(GEMMIS_addr+0x18d,0x0000); // system handle
mem_writed(GEMMIS_addr+0x18f,0); // handle name
mem_writed(GEMMIS_addr+0x193,0); // handle name
mem_writew(GEMMIS_addr+0x197,0x0010); // system handle
mem_writed(GEMMIS_addr+0x199,0x00110000); // physical address
/* fill buffer with import structure */
mem_writed(bufptr+0x00,GEMMIS_seg<<4);
mem_writew(bufptr+0x04,GEMMIS_VERSION);
*retcode=6;
return true;
}
case 0x02:
if (size!=2) return false;
mem_writeb(bufptr+0x00,EMM_VERSION>>4); // version 4.0
mem_writew(bufptr+0x01,EMM_VERSION&0x0f);
*retcode=2;
return true;
}
return false;
}
Bit8u FCB_Parsename(Bit16u seg,Bit16u offset,Bit8u parser ,char *string, Bit8u *change) {
char * string_begin=string;
Bit8u ret=0;
if (!(parser & PARSE_DFLT_DRIVE)) {
// default drive forced, this intentionally invalidates an extended FCB
mem_writeb(PhysMake(seg,offset),0);
}
DOS_FCB fcb(seg,offset,false); // always a non-extended FCB
bool hasdrive,hasname,hasext,finished;
hasdrive=hasname=hasext=finished=false;
Bitu index=0;
Bit8u fill=' ';
/* First get the old data from the fcb */
#ifdef _MSC_VER
#pragma pack (1)
#endif
union {
struct {
char drive[2];
char name[9];
char ext[4];
} GCC_ATTRIBUTE (packed) part;
char full[DOS_FCBNAME];
} fcb_name;
#ifdef _MSC_VER
#pragma pack()
#endif
/* Get the old information from the previous fcb */
fcb.GetName(fcb_name.full);
fcb_name.part.drive[0]-='A'-1;fcb_name.part.drive[1]=0;
fcb_name.part.name[8]=0;fcb_name.part.ext[3]=0;
/* Strip of the leading sepetaror */
if((parser & PARSE_SEP_STOP) && *string) { //ignore leading seperator
char sep[] = FCB_SEP;char a[2];
a[0]= *string;a[1]='\0';
if (strcspn(a,sep)==0) string++;
}
/* strip leading spaces */
while((*string==' ')||(*string=='\t')) string++;
/* Check for a drive */
if (string[1]==':') {
fcb_name.part.drive[0]=0;
hasdrive=true;
if (isalpha(string[0]) && Drives[toupper(string[0])-'A']) {
fcb_name.part.drive[0]=(char)(toupper(string[0])-'A'+1);
} else ret=0xff;
string+=2;
}
/* Special checks for . and .. */
if (string[0]=='.') {
string++;
if (!string[0]) {
hasname=true;
ret=PARSE_RET_NOWILD;
strcpy(fcb_name.part.name,". ");
goto savefcb;
}
if (string[1]=='.' && !string[1]) {
string++;
hasname=true;
ret=PARSE_RET_NOWILD;
strcpy(fcb_name.part.name,".. ");
goto savefcb;
}
goto checkext;
}
/* Copy the name */
hasname=true;finished=false;fill=' ';index=0;
while (index<8) {
if (!finished) {
if (string[0]=='*') {fill='?';fcb_name.part.name[index]='?';if (!ret) ret=1;finished=true;}
else if (string[0]=='?') {fcb_name.part.name[index]='?';if (!ret) ret=1;}
else if (isvalid(string[0])) {fcb_name.part.name[index]=(char)(toupper(string[0]));}
else { finished=true;continue; }
string++;
} else {
fcb_name.part.name[index]=fill;
}
index++;
}
if (!(string[0]=='.')) goto savefcb;
string++;
checkext:
/* Copy the extension */
hasext=true;finished=false;fill=' ';index=0;
while (index<3) {
if (!finished) {
if (string[0]=='*') {fill='?';fcb_name.part.ext[index]='?';finished=true;}
else if (string[0]=='?') {fcb_name.part.ext[index]='?';if (!ret) ret=1;}
else if (isvalid(string[0])) {fcb_name.part.ext[index]=(char)(toupper(string[0]));}
else { finished=true;continue; }
string++;
} else {
fcb_name.part.ext[index]=fill;
}
index++;
}
savefcb:
if (!hasdrive & !(parser & PARSE_DFLT_DRIVE)) fcb_name.part.drive[0] = 0;
if (!hasname & !(parser & PARSE_BLNK_FNAME)) strcpy(fcb_name.part.name," ");
if (!hasext & !(parser & PARSE_BLNK_FEXT)) strcpy(fcb_name.part.ext," ");
fcb.SetName(fcb_name.part.drive[0],fcb_name.part.name,fcb_name.part.ext);
*change=(Bit8u)(string-string_begin);
return ret;
}
Bit8u VESA_GetSVGAModeInformation(Bit16u mode,Bit16u seg,Bit16u off) {
MODE_INFO minfo;
memset(&minfo,0,sizeof(minfo));
PhysPt buf=PhysMake(seg,off);
Bitu pageSize;
Bit8u modeAttributes;
Bitu i=0;
mode&=0x3fff; // vbe2 compatible, ignore lfb and keep screen content bits
if (mode<0x100) return 0x01;
if (svga.accepts_mode) {
if (!svga.accepts_mode(mode)) return 0x01;
}
while (ModeList_VGA[i].mode!=0xffff) {
if (mode==ModeList_VGA[i].mode) goto foundit; else i++;
}
return VESA_FAIL;
foundit:
if ((int10.vesa_oldvbe) && (ModeList_VGA[i].mode>=0x120)) return 0x01;
VideoModeBlock * mblock=&ModeList_VGA[i];
switch (mblock->type) {
case M_LIN4:
pageSize = mblock->sheight * mblock->swidth/2;
var_write(&minfo.BytesPerScanLine,mblock->swidth/8);
var_write(&minfo.NumberOfPlanes,0x4);
var_write(&minfo.BitsPerPixel,4);
var_write(&minfo.MemoryModel,3); //ega planar mode
modeAttributes = 0x1b; // Color, graphics, no linear buffer
break;
case M_LIN8:
pageSize = mblock->sheight * mblock->swidth;
var_write(&minfo.BytesPerScanLine,mblock->swidth);
var_write(&minfo.NumberOfPlanes,0x1);
var_write(&minfo.BitsPerPixel,8);
var_write(&minfo.MemoryModel,4); //packed pixel
modeAttributes = 0x1b; // Color, graphics
if (!int10.vesa_nolfb) modeAttributes |= 0x80; // linear framebuffer
break;
case M_LIN15:
pageSize = mblock->sheight * mblock->swidth*2;
var_write(&minfo.BytesPerScanLine,mblock->swidth*2);
var_write(&minfo.NumberOfPlanes,0x1);
var_write(&minfo.BitsPerPixel,15);
var_write(&minfo.MemoryModel,6); //HiColour
var_write(&minfo.RedMaskSize,5);
var_write(&minfo.RedMaskPos,10);
var_write(&minfo.GreenMaskSize,5);
var_write(&minfo.GreenMaskPos,5);
var_write(&minfo.BlueMaskSize,5);
var_write(&minfo.BlueMaskPos,0);
var_write(&minfo.ReservedMaskSize,0x01);
var_write(&minfo.ReservedMaskPos,0x0f);
modeAttributes = 0x1b; // Color, graphics
if (!int10.vesa_nolfb) modeAttributes |= 0x80; // linear framebuffer
break;
case M_LIN16:
pageSize = mblock->sheight * mblock->swidth*2;
var_write(&minfo.BytesPerScanLine,mblock->swidth*2);
var_write(&minfo.NumberOfPlanes,0x1);
var_write(&minfo.BitsPerPixel,16);
var_write(&minfo.MemoryModel,6); //HiColour
var_write(&minfo.RedMaskSize,5);
var_write(&minfo.RedMaskPos,11);
var_write(&minfo.GreenMaskSize,6);
var_write(&minfo.GreenMaskPos,5);
var_write(&minfo.BlueMaskSize,5);
var_write(&minfo.BlueMaskPos,0);
modeAttributes = 0x1b; // Color, graphics
if (!int10.vesa_nolfb) modeAttributes |= 0x80; // linear framebuffer
break;
case M_LIN32:
pageSize = mblock->sheight * mblock->swidth*4;
var_write(&minfo.BytesPerScanLine,mblock->swidth*4);
var_write(&minfo.NumberOfPlanes,0x1);
var_write(&minfo.BitsPerPixel,32);
var_write(&minfo.MemoryModel,6); //HiColour
var_write(&minfo.RedMaskSize,8);
var_write(&minfo.RedMaskPos,0x10);
var_write(&minfo.GreenMaskSize,0x8);
var_write(&minfo.GreenMaskPos,0x8);
var_write(&minfo.BlueMaskSize,0x8);
var_write(&minfo.BlueMaskPos,0x0);
var_write(&minfo.ReservedMaskSize,0x8);
var_write(&minfo.ReservedMaskPos,0x18);
modeAttributes = 0x1b; // Color, graphics
if (!int10.vesa_nolfb) modeAttributes |= 0x80; // linear framebuffer
break;
case M_TEXT:
pageSize = 0;
var_write(&minfo.BytesPerScanLine, mblock->twidth * 2);
var_write(&minfo.NumberOfPlanes,0x4);
var_write(&minfo.BitsPerPixel,4);
var_write(&minfo.MemoryModel,0); // text
modeAttributes = 0x0f; //Color, text, bios output
break;
default:
return VESA_FAIL;
}
if (pageSize & 0xFFFF) {
// It is documented that many applications assume 64k-aligned page sizes
// VBETEST is one of them
pageSize += 0x10000;
pageSize &= ~0xFFFF;
}
Bitu pages = 0;
if (pageSize > vga.vmemsize) {
// mode not supported by current hardware configuration
modeAttributes &= ~0x1;
} else if (pageSize) {
pages = (vga.vmemsize / pageSize)-1;
}
var_write(&minfo.NumberOfImagePages, pages);
var_write(&minfo.ModeAttributes, modeAttributes);
var_write(&minfo.WinAAttributes, 0x7); // Exists/readable/writable
if (mblock->type==M_TEXT) {
var_write(&minfo.WinGranularity,32);
var_write(&minfo.WinSize,32);
var_write(&minfo.WinASegment,0xb800);
var_write(&minfo.XResolution,mblock->twidth);
var_write(&minfo.YResolution,mblock->theight);
} else {
var_write(&minfo.WinGranularity,64);
var_write(&minfo.WinSize,64);
var_write(&minfo.WinASegment,0xa000);
var_write(&minfo.XResolution,mblock->swidth);
var_write(&minfo.YResolution,mblock->sheight);
}
var_write(&minfo.WinFuncPtr,CALLBACK_RealPointer(callback.setwindow));
var_write(&minfo.NumberOfBanks,0x1);
var_write(&minfo.Reserved_page,0x1);
var_write(&minfo.XCharSize,mblock->cwidth);
var_write(&minfo.YCharSize,mblock->cheight);
if (!int10.vesa_nolfb) var_write(&minfo.PhysBasePtr,S3_LFB_BASE);
MEM_BlockWrite(buf,&minfo,sizeof(MODE_INFO));
return VESA_SUCCESS;
}
Bit8u FCB_Parsename(Bit16u seg,Bit16u offset,Bit8u parser ,char *string, Bit8u *change) {
char * string_begin=string;
Bit8u ret=0;
if (!(parser & PARSE_DFLT_DRIVE)) {
// default drive forced, this intentionally invalidates an extended FCB
mem_writeb(PhysMake(seg,offset),0);
}
DOS_FCB fcb(seg,offset,false); // always a non-extended FCB
bool hasdrive,hasname,hasext,finished;
hasdrive=hasname=hasext=finished=false;
Bitu index=0;
Bit8u fill=' ';
/* First get the old data from the fcb */
#ifdef _MSC_VER
#pragma pack (1)
#endif
union {
struct {
char drive[2];
char name[9];
char ext[4];
} GCC_ATTRIBUTE (packed) part;
char full[DOS_FCBNAME];
} fcb_name;
#ifdef _MSC_VER
#pragma pack()
#endif
/* Get the old information from the previous fcb */
fcb.GetName(fcb_name.full);
fcb_name.part.drive[0]-='A'-1;
fcb_name.part.drive[1]=0;
fcb_name.part.name[8]=0;
fcb_name.part.ext[3]=0;
/* strip leading spaces */
while((*string==' ')||(*string=='\t')) string++;
/* Strip of the leading separator */
if((parser & PARSE_SEP_STOP) && *string) {
char sep[] = FCB_SEP;
char a[2];
a[0] = *string;
a[1] = '\0';
if (strcspn(a,sep) == 0) string++;
}
/* Skip following spaces as well */
while((*string==' ')||(*string=='\t')) string++;
/* Check for a drive */
if (string[1]==':') {
unsigned char d = *reinterpret_cast<unsigned char*>(&string[0]);
if (!isvalid(toupper(d))) {
string += 2; //TODO check (for ret value)
goto savefcb;
}
fcb_name.part.drive[0]=0;
hasdrive=true;
if (isalpha(d) && Drives[toupper(d)-'A']) { //Floppies under dos always exist, but don't bother with that at this level
; //THIS* was here
} else ret=0xff;
fcb_name.part.drive[0]=DOS_ToUpper(string[0])-'A'+1; //Always do THIS* and continue parsing, just return the right code
string+=2;
}
/* Check for extension only file names */
if (string[0] == '.') {
string++;
goto checkext;
}
/* do nothing if not a valid name */
if(!isvalid(string[0])) goto savefcb;
hasname=true;
finished=false;
fill=' ';
index=0;
/* Copy the name */
while (true) {
unsigned char nc = *reinterpret_cast<unsigned char*>(&string[0]);
char ncs = (char)toupper(nc); //Should use DOS_ToUpper, but then more calls need to be changed.
if (ncs == '*') { //Handle *
fill = '?';
ncs = '?';
}
if (ncs == '?' && !ret && index < 8) ret = 1; //Don't override bad drive
if (!isvalid(ncs)) { //Fill up the name.
while(index < 8)
fcb_name.part.name[index++] = fill;
break;
}
if (index < 8) {
fcb_name.part.name[index++] = (fill == '?')?fill:ncs;
}
string++;
}
if (!(string[0]=='.')) goto savefcb;
string++;
checkext:
/* Copy the extension */
hasext=true;
finished=false;
fill=' ';
index=0;
while (true) {
unsigned char nc = *reinterpret_cast<unsigned char*>(&string[0]);
char ncs = (char)toupper(nc);
if (ncs == '*') { //Handle *
fill = '?';
ncs = '?';
}
if (ncs == '?' && !ret && index < 3) ret = 1;
if (!isvalid(ncs)) { //Fill up the name.
while(index < 3)
fcb_name.part.ext[index++] = fill;
break;
}
if (index < 3) {
fcb_name.part.ext[index++] = (fill=='?')?fill:ncs;
}
string++;
}
savefcb:
if (!hasdrive & !(parser & PARSE_DFLT_DRIVE)) fcb_name.part.drive[0] = 0;
if (!hasname & !(parser & PARSE_BLNK_FNAME)) strcpy(fcb_name.part.name," ");
if (!hasext & !(parser & PARSE_BLNK_FEXT)) strcpy(fcb_name.part.ext," ");
fcb.SetName(fcb_name.part.drive[0],fcb_name.part.name,fcb_name.part.ext);
fcb.ClearBlockRecsize(); //Undocumented bonus work.
*change=(Bit8u)(string-string_begin);
return ret;
}
void DOS_PSP::SetFCB2(RealPt src) {
if (src) MEM_BlockCopy(PhysMake(seg,offsetof(sPSP,fcb2)),Real2Phys(src),16);
}
bool DOS_Execute(char * name,PhysPt block_pt,Bit8u flags) {
EXE_Header head;Bitu i;
Bit16u fhandle;Bit16u len;Bit32u pos;
Bit16u pspseg,envseg,loadseg,memsize,readsize;
PhysPt loadaddress;RealPt relocpt;
Bitu headersize,imagesize;
DOS_ParamBlock block(block_pt);
block.LoadData();
if (flags!=LOADNGO && flags!=OVERLAY && flags!=LOAD) {
E_Exit("DOS:Not supported execute mode %d for file %s",flags,name);
}
/* Check for EXE or COM File */
bool iscom=false;
if (!DOS_OpenFile(name,OPEN_READ,&fhandle)) return false;
len=sizeof(EXE_Header);
if (!DOS_ReadFile(fhandle,(Bit8u *)&head,&len)) {
DOS_CloseFile(fhandle);
return false;
}
if (len<sizeof(EXE_Header)) {
if (len==0) {
/* Prevent executing zero byte files */
DOS_SetError(DOSERR_ACCESS_DENIED);
DOS_CloseFile(fhandle);
return false;
}
/* Otherwise must be a .com file */
iscom=true;
} else {
/* Convert the header to correct endian, i hope this works */
HostPt endian=(HostPt)&head;
for (i=0;i<sizeof(EXE_Header)/2;i++) {
*((Bit16u *)endian)=host_readw(endian);
endian+=2;
}
if ((head.signature!=MAGIC1) && (head.signature!=MAGIC2)) iscom=true;
else {
if(head.pages & ~0x07ff) /* 1 MB dos maximum address limit. Fixes TC3 IDE (kippesoep) */
LOG(LOG_EXEC,LOG_NORMAL)("Weird header: head.pages > 1 MB");
head.pages&=0x07ff;
headersize = head.headersize*16;
imagesize = head.pages*512-headersize;
if (imagesize+headersize<512) imagesize = 512-headersize;
}
}
Bit8u * loadbuf=(Bit8u *)new Bit8u[0x10000];
if (flags!=OVERLAY) {
/* Create an environment block */
envseg=block.exec.envseg;
if (!MakeEnv(name,&envseg)) {
DOS_CloseFile(fhandle);
return false;
}
/* Get Memory */
Bit16u minsize,maxsize;Bit16u maxfree=0xffff;DOS_AllocateMemory(&pspseg,&maxfree);
if (iscom) {
minsize=0x1000;maxsize=0xffff;
if (machine==MCH_PCJR) {
/* try to load file into memory below 96k */
pos=0;DOS_SeekFile(fhandle,&pos,DOS_SEEK_SET);
Bit16u dataread=0x1800;
DOS_ReadFile(fhandle,loadbuf,&dataread);
if (dataread<0x1800) maxsize=dataread;
if (minsize>maxsize) minsize=maxsize;
}
} else { /* Exe size calculated from header */
minsize=long2para(imagesize+(head.minmemory<<4)+256);
if (head.maxmemory!=0) maxsize=long2para(imagesize+(head.maxmemory<<4)+256);
else maxsize=0xffff;
}
if (maxfree<minsize) {
DOS_SetError(DOSERR_INSUFFICIENT_MEMORY);
DOS_FreeMemory(envseg);
return false;
}
if (maxfree<maxsize) memsize=maxfree;
else memsize=maxsize;
if (!DOS_AllocateMemory(&pspseg,&memsize)) E_Exit("DOS:Exec error in memory");
if (iscom && (machine==MCH_PCJR) && (pspseg<0x2000)) {
maxsize=0xffff;
/* resize to full extent of memory block */
DOS_ResizeMemory(pspseg,&maxsize);
/* now try to lock out memory above segment 0x2000 */
if ((real_readb(0x2000,0)==0x5a) && (real_readw(0x2000,1)==0) && (real_readw(0x2000,3)==0x7ffe)) {
/* MCB after PCJr graphics memory region is still free */
if (pspseg+maxsize==0x17ff) {
DOS_MCB cmcb((Bit16u)(pspseg-1));
cmcb.SetType(0x5a); // last block
}
}
}
loadseg=pspseg+16;
if (!iscom) {
/* Check if requested to load program into upper part of allocated memory */
if ((head.minmemory == 0) && (head.maxmemory == 0))
loadseg = ((pspseg+memsize)*0x10-imagesize)/0x10;
}
} else loadseg=block.overlay.loadseg;
/* Load the executable */
loadaddress=PhysMake(loadseg,0);
if (iscom) { /* COM Load 64k - 256 bytes max */
pos=0;DOS_SeekFile(fhandle,&pos,DOS_SEEK_SET);
readsize=0xffff-256;
DOS_ReadFile(fhandle,loadbuf,&readsize);
MEM_BlockWrite(loadaddress,loadbuf,readsize);
} else { /* EXE Load in 32kb blocks and then relocate */
pos=headersize;DOS_SeekFile(fhandle,&pos,DOS_SEEK_SET);
while (imagesize>0x7FFF) {
readsize=0x8000;DOS_ReadFile(fhandle,loadbuf,&readsize);
MEM_BlockWrite(loadaddress,loadbuf,readsize);
// if (readsize!=0x8000) LOG(LOG_EXEC,LOG_NORMAL)("Illegal header");
loadaddress+=0x8000;imagesize-=0x8000;
}
if (imagesize>0) {
readsize=(Bit16u)imagesize;DOS_ReadFile(fhandle,loadbuf,&readsize);
MEM_BlockWrite(loadaddress,loadbuf,readsize);
// if (readsize!=imagesize) LOG(LOG_EXEC,LOG_NORMAL)("Illegal header");
}
/* Relocate the exe image */
Bit16u relocate;
if (flags==OVERLAY) relocate=block.overlay.relocation;
else relocate=loadseg;
pos=head.reloctable;DOS_SeekFile(fhandle,&pos,0);
for (i=0;i<head.relocations;i++) {
readsize=4;DOS_ReadFile(fhandle,(Bit8u *)&relocpt,&readsize);
relocpt=host_readd((HostPt)&relocpt); //Endianize
PhysPt address=PhysMake(RealSeg(relocpt)+loadseg,RealOff(relocpt));
mem_writew(address,mem_readw(address)+relocate);
}
}
delete[] loadbuf;
DOS_CloseFile(fhandle);
/* Setup a psp */
if (flags!=OVERLAY) {
// Create psp after closing exe, to avoid dead file handle of exe in copied psp
SetupPSP(pspseg,memsize,envseg);
SetupCMDLine(pspseg,block);
};
CALLBACK_SCF(false); /* Carry flag cleared for caller if successfull */
if (flags==OVERLAY) return true; /* Everything done for overlays */
RealPt csip,sssp;
if (iscom) {
csip=RealMake(pspseg,0x100);
sssp=RealMake(pspseg,0xfffe);
mem_writew(PhysMake(pspseg,0xfffe),0);
} else {
csip=RealMake(loadseg+head.initCS,head.initIP);
sssp=RealMake(loadseg+head.initSS,head.initSP);
}
if (flags==LOAD) {
DOS_PSP callpsp(dos.psp());
/* Save the SS:SP on the PSP of calling program */
callpsp.SetStack(RealMakeSeg(ss,reg_sp));
/* Switch the psp's */
dos.psp(pspseg);
DOS_PSP newpsp(dos.psp());
dos.dta(RealMake(newpsp.GetSegment(),0x80));
block.exec.initsssp = sssp;
block.exec.initcsip = csip;
block.SaveData();
return true;
}
if (flags==LOADNGO) {
/* Get Caller's program CS:IP of the stack and set termination address to that */
RealSetVec(0x22,RealMake(mem_readw(SegPhys(ss)+reg_sp+2),mem_readw(SegPhys(ss)+reg_sp)));
SaveRegisters();
DOS_PSP callpsp(dos.psp());
/* Save the SS:SP on the PSP of calling program */
callpsp.SetStack(RealMakeSeg(ss,reg_sp));
/* Switch the psp's and set new DTA */
dos.psp(pspseg);
DOS_PSP newpsp(dos.psp());
dos.dta(RealMake(newpsp.GetSegment(),0x80));
/* save vectors */
newpsp.SaveVectors();
/* copy fcbs */
newpsp.SetFCB1(block.exec.fcb1);
newpsp.SetFCB2(block.exec.fcb2);
/* Set the stack for new program */
SegSet16(ss,RealSeg(sssp));reg_sp=RealOff(sssp);
/* Add some flags and CS:IP on the stack for the IRET */
reg_sp-=6;
mem_writew(SegPhys(ss)+reg_sp+0,RealOff(csip));
mem_writew(SegPhys(ss)+reg_sp+2,RealSeg(csip));
/* DOS starts programs with a RETF, so our IRET
should not modify critical flags (IOPL in v86 mode);
interrupt flag is set explicitly, test flags cleared */
mem_writew(SegPhys(ss)+reg_sp+4,(reg_flags&(~FMASK_TEST))|FLAG_IF);
/* Setup the rest of the registers */
reg_ax=reg_bx=0;reg_cx=0xff;
reg_dx=pspseg;
reg_si=RealOff(csip);
reg_di=RealOff(sssp);
reg_bp=0x91c; /* DOS internal stack begin relict */
SegSet16(ds,pspseg);SegSet16(es,pspseg);
#if C_DEBUG
/* Started from debug.com, then set breakpoint at start */
DEBUG_CheckExecuteBreakpoint(RealSeg(csip),RealOff(csip));
#endif
/* Add the filename to PSP and environment MCB's */
char stripname[8];Bitu index=0;
while (char chr=*name++) {
switch (chr) {
case ':':case '\\':case '/':index=0;break;
default:if (index<8) stripname[index++]=toupper(chr);
}
}
index=0;
while (index<8) {
if (stripname[index]=='.') break;
if (!stripname[index]) break;
index++;
}
memset(&stripname[index],0,8-index);
DOS_MCB pspmcb(dos.psp()-1);
pspmcb.SetFileName(stripname);
DOS_UpdatePSPName();
return true;
}
return false;
}
bool DOS_IOCTL(void) {
Bitu handle=0;Bit8u drive=0;
/* calls 0-4,6,7,10,12,16 use a file handle */
if ((reg_al<4) || (reg_al==0x06) || (reg_al==0x07) || (reg_al==0x0a) || (reg_al==0x0c) || (reg_al==0x10)) {
handle=RealHandle(reg_bx);
if (handle>=DOS_FILES) {
DOS_SetError(DOSERR_INVALID_HANDLE);
return false;
}
if (!Files[handle]) {
DOS_SetError(DOSERR_INVALID_HANDLE);
return false;
}
} else if (reg_al<0x12) { /* those use a diskdrive except 0x0b */
if (reg_al!=0x0b) {
drive=reg_bl;if (!drive) drive = DOS_GetDefaultDrive();else drive--;
if( !(( drive < DOS_DRIVES ) && Drives[drive]) ) {
DOS_SetError(DOSERR_INVALID_DRIVE);
return false;
}
}
} else {
LOG(LOG_DOSMISC,LOG_ERROR)("DOS:IOCTL Call %2X unhandled",reg_al);
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
return false;
}
switch(reg_al) {
case 0x00: /* Get Device Information */
if (Files[handle]->GetInformation() & 0x8000) { //Check for device
reg_dx=Files[handle]->GetInformation();
} else {
Bit8u hdrive=Files[handle]->GetDrive();
if (hdrive==0xff) {
LOG(LOG_IOCTL,LOG_NORMAL)("00:No drive set");
hdrive=2; // defaulting to C:
}
/* return drive number in lower 5 bits for block devices */
reg_dx=(Files[handle]->GetInformation()&0xffe0)|hdrive;
}
reg_ax=reg_dx; //Destroyed officially
return true;
case 0x01: /* Set Device Information */
if (reg_dh != 0) {
DOS_SetError(DOSERR_DATA_INVALID);
return false;
} else {
if (Files[handle]->GetInformation() & 0x8000) { //Check for device
reg_al=(Bit8u)(Files[handle]->GetInformation() & 0xff);
} else {
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
return false;
}
}
return true;
case 0x02: /* Read from Device Control Channel */
if (Files[handle]->GetInformation() & 0xc000) {
/* is character device with IOCTL support */
PhysPt bufptr=PhysMake(SegValue(ds),reg_dx);
Bit16u retcode=0;
if (((DOS_Device*)(Files[handle]))->ReadFromControlChannel(bufptr,reg_cx,&retcode)) {
reg_ax=retcode;
return true;
}
}
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
return false;
case 0x03: /* Write to Device Control Channel */
if (Files[handle]->GetInformation() & 0xc000) {
/* is character device with IOCTL support */
PhysPt bufptr=PhysMake(SegValue(ds),reg_dx);
Bit16u retcode=0;
if (((DOS_Device*)(Files[handle]))->WriteToControlChannel(bufptr,reg_cx,&retcode)) {
reg_ax=retcode;
return true;
}
}
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
return false;
case 0x06: /* Get Input Status */
if (Files[handle]->GetInformation() & 0x8000) { //Check for device
reg_al=(Files[handle]->GetInformation() & 0x40) ? 0x0 : 0xff;
} else { // FILE
Bit32u oldlocation=0;
Files[handle]->Seek(&oldlocation, DOS_SEEK_CUR);
Bit32u endlocation=0;
Files[handle]->Seek(&endlocation, DOS_SEEK_END);
if(oldlocation < endlocation){//Still data available
reg_al=0xff;
} else {
reg_al=0x0; //EOF or beyond
}
Files[handle]->Seek(&oldlocation, DOS_SEEK_SET); //restore filelocation
LOG(LOG_IOCTL,LOG_NORMAL)("06:Used Get Input Status on regular file with handle %d",handle);
}
return true;
case 0x07: /* Get Output Status */
LOG(LOG_IOCTL,LOG_NORMAL)("07:Fakes output status is ready for handle %d",handle);
reg_al=0xff;
return true;
case 0x08: /* Check if block device removable */
/* cdrom drives and drive a&b are removable */
if (drive < 2) reg_ax=0;
else if (!Drives[drive]->isRemovable()) reg_ax=1;
else {
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
return false;
}
return true;
case 0x09: /* Check if block device remote */
if (Drives[drive]->isRemote()) {
reg_dx=0x1000; // device is remote
// undocumented bits always clear
} else {
reg_dx=0x0802; // Open/Close supported; 32bit access supported (any use? fixes Fable installer)
// undocumented bits from device attribute word
// TODO Set bit 9 on drives that don't support direct I/O
}
reg_ax=0x300;
return true;
case 0x0B: /* Set sharing retry count */
if (reg_dx==0) {
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
return false;
}
return true;
case 0x0D: /* Generic block device request */
{
if (Drives[drive]->isRemovable()) {
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
return false;
}
PhysPt ptr = SegPhys(ds)+reg_dx;
switch (reg_cl) {
case 0x60: /* Get Device parameters */
mem_writeb(ptr ,0x03); // special function
mem_writeb(ptr+1,(drive>=2)?0x05:0x14); // fixed disc(5), 1.44 floppy(14)
mem_writew(ptr+2,drive>=2); // nonremovable ?
mem_writew(ptr+4,0x0000); // num of cylinders
mem_writeb(ptr+6,0x00); // media type (00=other type)
// drive parameter block following
mem_writeb(ptr+7,drive); // drive
mem_writeb(ptr+8,0x00); // unit number
mem_writed(ptr+0x1f,0xffffffff); // next parameter block
break;
case 0x46:
case 0x66: /* Volume label */
{
char const* bufin=Drives[drive]->GetLabel();
char buffer[11] ={' '};
char const* find_ext=strchr(bufin,'.');
if (find_ext) {
Bitu size=(Bitu)(find_ext-bufin);
if (size>8) size=8;
memcpy(buffer,bufin,size);
find_ext++;
memcpy(buffer+size,find_ext,(strlen(find_ext)>3) ? 3 : strlen(find_ext));
} else {
memcpy(buffer,bufin,(strlen(bufin) > 8) ? 8 : strlen(bufin));
}
char buf2[8]={ 'F','A','T','1','6',' ',' ',' '};
if(drive<2) buf2[4] = '2'; //FAT12 for floppies
mem_writew(ptr+0,0); // 0
mem_writed(ptr+2,0x1234); //Serial number
MEM_BlockWrite(ptr+6,buffer,11);//volumename
if(reg_cl == 0x66) MEM_BlockWrite(ptr+0x11, buf2,8);//filesystem
}
break;
default :
LOG(LOG_IOCTL,LOG_ERROR)("DOS:IOCTL Call 0D:%2X Drive %2X unhandled",reg_cl,drive);
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
return false;
}
return true;
}
case 0x0E: /* Get Logical Drive Map */
if (Drives[drive]->isRemovable()) {
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
return false;
}
reg_al = 0; /* Only 1 logical drive assigned */
return true;
default:
LOG(LOG_DOSMISC,LOG_ERROR)("DOS:IOCTL Call %2X unhandled",reg_al);
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
break;
}
return false;
}
