Annotation of msdos-player/source/msdos.h, revision 1.1.1.27

1.1       root        1: /*
                      2:        MS-DOS Player for Win32 console
                      3: 
                      4:        Author : Takeda.Toshiya
                      5:        Date   : 2009.11.09-
                      6: */
                      7: 
                      8: #ifndef _MSDOS_H_
                      9: #define _MSDOS_H_
                     10: 
1.1.1.12  root       11: #ifndef _WIN32_WINNT
                     12: #define _WIN32_WINNT 0x501
                     13: #endif
1.1       root       14: #include <windows.h>
                     15: #include <winioctl.h>
                     16: #include <tchar.h>
1.1.1.13  root       17: #include <stddef.h>
1.1       root       18: #include <stdlib.h>
                     19: #include <stdio.h>
1.1.1.2   root       20: #include <assert.h>
1.1       root       21: #include <conio.h>
1.1.1.27! root       22: #include <locale.h>
1.1.1.2   root       23: #include <math.h>
1.1       root       24: #include <dos.h>
                     25: #include <fcntl.h>
                     26: #include <sys/types.h>
                     27: #include <sys/stat.h>
                     28: #include <io.h>
                     29: #include <sys/locking.h>
                     30: #include <mbctype.h>
                     31: #include <direct.h>
                     32: #include <errno.h>
1.1.1.9   root       33: #include <tlhelp32.h>
                     34: #include <psapi.h>
1.1.1.20  root       35: #include <setupapi.h>
1.1.1.27! root       36: #include <winsock.h>
1.1       root       37: 
1.1.1.15  root       38: #ifdef _DEBUG
                     39: #define _CRTDBG_MAP_ALLOC
                     40: #include <crtdbg.h>
                     41: #define calloc(c, s) _calloc_dbg(c, s, _NORMAL_BLOCK, __FILE__, __LINE__)
                     42: #define malloc(s) _malloc_dbg(s, _NORMAL_BLOCK, __FILE__, __LINE__)
                     43: #define new new(_NORMAL_BLOCK, __FILE__, __LINE__)
                     44: #endif
                     45: 
1.1.1.9   root       46: // variable scope of 'for' loop for Microsoft Visual C++ 6.0
                     47: #if defined(_MSC_VER) && (_MSC_VER == 1200)
1.1       root       48: #define for if(0);else for
                     49: #endif
1.1.1.9   root       50: 
                     51: // disable warnings for Microsoft Visual C++ 2005 or later
1.1       root       52: #if defined(_MSC_VER) && (_MSC_VER >= 1400)
                     53: #pragma warning( disable : 4819 )
                     54: #pragma warning( disable : 4995 )
                     55: #pragma warning( disable : 4996 )
1.1.1.9   root       56: // for MAME i86/i386
                     57: #pragma warning( disable : 4018 )
                     58: #pragma warning( disable : 4065 )
                     59: #pragma warning( disable : 4146 )
                     60: #pragma warning( disable : 4244 )
                     61: #pragma warning( disable : 4267 )
                     62: #endif
                     63: 
                     64: // endian
                     65: #if !defined(__LITTLE_ENDIAN__) && !defined(__BIG_ENDIAN__)
                     66:        #if defined(__BYTE_ORDER) && (defined(__LITTLE_ENDIAN) || defined(__BIG_ENDIAN))
                     67:                #if __BYTE_ORDER == __LITTLE_ENDIAN
                     68:                        #define __LITTLE_ENDIAN__
                     69:                #elif __BYTE_ORDER == __BIG_ENDIAN
                     70:                        #define __BIG_ENDIAN__
                     71:                #endif
                     72:        #elif defined(WORDS_LITTLEENDIAN)
                     73:                #define __LITTLE_ENDIAN__
                     74:        #elif defined(WORDS_BIGENDIAN)
                     75:                #define __BIG_ENDIAN__
                     76:        #endif
                     77: #endif
                     78: #if !defined(__LITTLE_ENDIAN__) && !defined(__BIG_ENDIAN__)
                     79:        // Microsoft Visual C++
                     80:        #define __LITTLE_ENDIAN__
1.1       root       81: #endif
1.1.1.9   root       82: 
1.1       root       83: // compat for mingw32 headers
                     84: #ifndef COMMON_LVB_UNDERSCORE
                     85: #define COMMON_LVB_UNDERSCORE 0x8000
                     86: #endif
                     87: 
                     88: // type definition
                     89: #ifndef UINT8
                     90: typedef unsigned char UINT8;
                     91: #endif
                     92: #ifndef UINT16
                     93: typedef unsigned short UINT16;
                     94: #endif
                     95: #ifndef UINT32
                     96: typedef unsigned int UINT32;
                     97: #endif
1.1.1.27! root       98: #ifndef UINT64
        !            99: typedef unsigned long long UINT64;
        !           100: #endif
1.1       root      101: #ifndef INT8
                    102: typedef signed char INT8;
                    103: #endif
                    104: #ifndef INT16
                    105: typedef signed short INT16;
                    106: #endif
                    107: #ifndef INT32
                    108: typedef signed int INT32;
                    109: #endif
1.1.1.27! root      110: #ifndef INT64
        !           111: typedef signed long long INT64;
        !           112: #endif
1.1       root      113: 
                    114: #pragma pack(1)
                    115: typedef union {
                    116:        UINT32 dw;
                    117:        struct {
1.1.1.9   root      118: #ifdef __BIG_ENDIAN__
                    119:                UINT16 h, l;
                    120: #else
1.1       root      121:                UINT16 l, h;
1.1.1.9   root      122: #endif
1.1       root      123:        } w;
                    124: } PAIR32;
                    125: #pragma pack()
                    126: 
1.1.1.24  root      127: // MAME i86/i386
                    128: 
                    129: // src/emu/devcpu.h
                    130: // offsets and addresses are 32-bit (for now...)
                    131: typedef UINT32 offs_t;
                    132: 
1.1       root      133: /* ----------------------------------------------------------------------------
                    134:        FIFO buffer
                    135: ---------------------------------------------------------------------------- */
                    136: 
                    137: class FIFO
                    138: {
                    139: private:
1.1.1.20  root      140:        int size;
                    141:        int *buf;
1.1       root      142:        int cnt, rpt, wpt, stored[3];
                    143: public:
1.1.1.20  root      144:        FIFO(int s) {
                    145:                size = s;
                    146:                buf = (int *)malloc(size * sizeof(int));
1.1       root      147:                cnt = rpt = wpt = 0;
                    148:        }
1.1.1.20  root      149:        void release()
                    150:        {
                    151:                free(buf);
                    152:        }
1.1.1.27! root      153:        void clear()
        !           154:        {
        !           155:                cnt = rpt = wpt = 0;
        !           156:        }
1.1       root      157:        void write(int val) {
1.1.1.20  root      158:                if(cnt < size) {
1.1       root      159:                        buf[wpt++] = val;
1.1.1.20  root      160:                        if(wpt >= size) {
1.1       root      161:                                wpt = 0;
                    162:                        }
                    163:                        cnt++;
                    164:                }
                    165:        }
                    166:        int read() {
                    167:                int val = 0;
                    168:                if(cnt) {
                    169:                        val = buf[rpt++];
1.1.1.20  root      170:                        if(rpt >= size) {
1.1       root      171:                                rpt = 0;
                    172:                        }
                    173:                        cnt--;
                    174:                }
1.1.1.20  root      175:                return(val);
1.1       root      176:        }
                    177:        int count() {
1.1.1.20  root      178:                return(cnt);
                    179:        }
                    180:        int remain() {
                    181:                return(size - cnt);
                    182:        }
                    183:        bool full()
                    184:        {
                    185:                return(cnt == size);
                    186:        }
                    187:        bool empty()
                    188:        {
                    189:                return(cnt == 0);
1.1       root      190:        }
                    191:        void store_buffer() {
                    192:                stored[0] = cnt;
                    193:                stored[1] = rpt;
                    194:                stored[2] = wpt;
                    195:        }
                    196:        void restore_buffer() {
                    197:                cnt = stored[0];
                    198:                rpt = stored[1];
                    199:                wpt = stored[2];
                    200:        }
                    201: };
                    202: 
                    203: /* ----------------------------------------------------------------------------
1.1.1.14  root      204:        MAME i86/i386
                    205: ---------------------------------------------------------------------------- */
                    206: 
                    207: #if defined(HAS_I86)
                    208:        #define CPU_MODEL i8086
                    209: #elif defined(HAS_I186)
                    210:        #define CPU_MODEL i80186
                    211: #elif defined(HAS_V30)
                    212:        #define CPU_MODEL v30
                    213: #elif defined(HAS_I286)
                    214:        #define CPU_MODEL i80286
                    215: #elif defined(HAS_I386)
                    216:        #define CPU_MODEL i386
                    217: #else
                    218: //     #if defined(HAS_I386SX)
                    219: //             #define CPU_MODEL i386SX
                    220: //     #else
                    221:                #if defined(HAS_I486)
                    222:                        #define CPU_MODEL i486
                    223:                #else
                    224:                        #if defined(HAS_PENTIUM)
                    225:                                #define CPU_MODEL pentium
                    226:                        #elif defined(HAS_MEDIAGX)
                    227:                                #define CPU_MODEL mediagx
                    228:                        #elif defined(HAS_PENTIUM_PRO)
                    229:                                #define CPU_MODEL pentium_pro
                    230:                        #elif defined(HAS_PENTIUM_MMX)
                    231:                                #define CPU_MODEL pentium_mmx
                    232:                        #elif defined(HAS_PENTIUM2)
                    233:                                #define CPU_MODEL pentium2
                    234:                        #elif defined(HAS_PENTIUM3)
                    235:                                #define CPU_MODEL pentium3
                    236:                        #elif defined(HAS_PENTIUM4)
                    237:                                #define CPU_MODEL pentium4
                    238:                        #endif
                    239:                        #define SUPPORT_RDTSC
                    240:                #endif
                    241:                #define SUPPORT_FPU
                    242: //     #endif
                    243:        #define HAS_I386
                    244: #endif
                    245: 
                    246: /* ----------------------------------------------------------------------------
1.1.1.27! root      247:        debugger
        !           248: ---------------------------------------------------------------------------- */
        !           249: 
        !           250: //#define USE_DEBUGGER
        !           251: 
        !           252: #ifdef USE_DEBUGGER
        !           253: #define MAX_BREAK_POINTS       8
        !           254: 
        !           255: bool now_debugging = false;
        !           256: bool now_going = false;
        !           257: bool now_suspended = false;
        !           258: bool force_suspend = false;
        !           259: 
        !           260: typedef struct {
        !           261:        struct {
        !           262:                UINT32 addr;
        !           263:                UINT32 seg;
        !           264:                UINT32 ofs;
        !           265:                int status;     // 0 = none, 1 = enabled, other = disabled
        !           266:        } table[MAX_BREAK_POINTS];
        !           267:        int hit;
        !           268: } break_point_t;
        !           269: 
        !           270: break_point_t break_point = {0};
        !           271: break_point_t rd_break_point = {0};
        !           272: break_point_t wr_break_point = {0};
        !           273: break_point_t in_break_point = {0};
        !           274: break_point_t out_break_point = {0};
        !           275: 
        !           276: typedef struct {
        !           277:        struct {
        !           278:                int int_num;
        !           279:                UINT8 ah, ah_registered;
        !           280:                UINT8 al, al_registered;
        !           281:                int status;     // 0 = none, 1 = enabled, other = disabled
        !           282:        } table[MAX_BREAK_POINTS];
        !           283:        int hit;
        !           284: } int_break_point_t;
        !           285: 
        !           286: int_break_point_t int_break_point = {0};
        !           287: 
        !           288: FILE *fp_debugger = NULL;
        !           289: FILE *fi_debugger = NULL;
        !           290: 
        !           291: // these read/write interfaces do not check break points,
        !           292: // debugger should use them not to hit any break point mistakely
        !           293: UINT8 debugger_read_byte(offs_t byteaddress);
        !           294: UINT16 debugger_read_word(offs_t byteaddress);
        !           295: UINT32 debugger_read_dword(offs_t byteaddress);
        !           296: void debugger_write_byte(offs_t byteaddress, UINT8 data);
        !           297: void debugger_write_word(offs_t byteaddress, UINT16 data);
        !           298: void debugger_write_dword(offs_t byteaddress, UINT32 data);
        !           299: UINT8 debugger_read_io_byte(offs_t addr);
        !           300: UINT16 debugger_read_io_word(offs_t addr);
        !           301: UINT32 debugger_read_io_dword(offs_t addr);
        !           302: void debugger_write_io_byte(offs_t addr, UINT8 val);
        !           303: void debugger_write_io_word(offs_t addr, UINT16 val);
        !           304: void debugger_write_io_dword(offs_t addr, UINT32 val);
        !           305: #endif
        !           306: 
        !           307: /* ----------------------------------------------------------------------------
1.1.1.14  root      308:        PC/AT hardware emulation
                    309: ---------------------------------------------------------------------------- */
                    310: 
1.1.1.22  root      311: //#define SUPPORT_GRAPHIC_SCREEN
                    312: 
1.1.1.14  root      313: void hardware_init();
                    314: void hardware_finish();
1.1.1.22  root      315: void hardware_release();
1.1.1.14  root      316: void hardware_run();
                    317: void hardware_update();
                    318: 
                    319: // memory
                    320: 
                    321: #if defined(HAS_I386)
1.1.1.27! root      322:        #define ADDR_MASK 0xffffffff
        !           323:        #define MAX_MEM 0x2000000       /* 32MB */
1.1.1.14  root      324: #elif defined(HAS_I286)
1.1.1.27! root      325:        #define ADDR_MASK 0xffffff
        !           326:        #define MAX_MEM 0x1000000       /* 16MB */
1.1.1.14  root      327: #else
1.1.1.27! root      328:        #define ADDR_MASK 0xfffff
        !           329:        #define MAX_MEM 0x100000        /* 1MB */
1.1.1.14  root      330: #endif
1.1.1.27! root      331: UINT8 mem[MAX_MEM + 15];
1.1.1.14  root      332: 
                    333: // ems
                    334: 
                    335: #define MAX_EMS_HANDLES 16
                    336: #define MAX_EMS_PAGES 2048     /* 32MB */
                    337: 
1.1.1.21  root      338: typedef struct {
1.1.1.14  root      339:        char name[8];
                    340:        UINT8* buffer;
                    341:        int pages;
                    342:        bool allocated;
1.1.1.21  root      343: } ems_handle_t;
1.1.1.14  root      344: 
1.1.1.21  root      345: typedef struct {
1.1.1.14  root      346:        UINT16 handle;
                    347:        UINT16 page;
                    348:        bool mapped;
1.1.1.21  root      349: } ems_page_t;
1.1.1.14  root      350: 
1.1.1.25  root      351: ems_handle_t ems_handles[MAX_EMS_HANDLES + 1] = {0};
1.1.1.21  root      352: ems_page_t ems_pages[4];
1.1.1.14  root      353: int free_ems_pages;
                    354: 
                    355: void ems_init();
                    356: void ems_finish();
1.1.1.22  root      357: void ems_release();
1.1.1.14  root      358: void ems_allocate_pages(int handle, int pages);
                    359: void ems_reallocate_pages(int handle, int pages);
                    360: void ems_release_pages(int handle);
                    361: void ems_map_page(int physical, int handle, int logical);
                    362: void ems_unmap_page(int physical);
                    363: 
1.1.1.20  root      364: // dma
                    365: 
                    366: typedef struct {
                    367:        struct {
                    368:                union {
                    369:                        UINT16 w;
                    370:                        struct {
                    371: #ifdef __BIG_ENDIAN__
                    372:                                UINT8 h, l;
                    373: #else
                    374:                                UINT8 l, h;
                    375: #endif
                    376:                        } b;
                    377:                } areg, creg, bareg, bcreg;
                    378:                UINT8 mode;
                    379:                UINT8 pagereg;
                    380:                UINT32 port;
                    381:        } ch[4];
                    382:        
                    383:        bool low_high;
                    384:        UINT8 cmd;
                    385:        UINT8 req;
                    386:        UINT8 mask;
                    387:        UINT8 tc;
                    388:        UINT16 tmp;
                    389: } dma_t;
                    390: 
1.1.1.21  root      391: dma_t dma[2];
1.1.1.20  root      392: 
                    393: void dma_init();
                    394: void dma_reset(int c);
                    395: void dma_write(int c, UINT32 addr, UINT8 data);
                    396: UINT8 dma_read(int c, UINT32 addr);
                    397: void dma_page_write(int c, int ch, UINT8 data);
                    398: UINT8 dma_page_read(int c, int ch);
                    399: void dma_run(int c, int ch);
                    400: 
1.1.1.14  root      401: // pic
                    402: 
                    403: typedef struct {
                    404:        UINT8 imr, isr, irr, prio;
                    405:        UINT8 icw1, icw2, icw3, icw4;
                    406:        UINT8 ocw3;
                    407:        UINT8 icw2_r, icw3_r, icw4_r;
                    408: } pic_t;
                    409: 
                    410: pic_t pic[2];
                    411: int pic_req_chip, pic_req_level;
                    412: UINT8 pic_req_bit;
                    413: 
                    414: void pic_init();
                    415: void pic_write(int c, UINT32 addr, UINT8 data);
                    416: UINT8 pic_read(int c, UINT32 addr);
                    417: void pic_req(int c, int level, int signal);
                    418: int pic_ack();
                    419: void pic_update();
                    420: 
1.1.1.20  root      421: // pio
                    422: 
                    423: typedef struct {
                    424:        UINT8 data, stat, ctrl;
                    425: } pio_t;
                    426: 
1.1.1.21  root      427: pio_t pio[2];
1.1.1.20  root      428: 
                    429: void pio_init();
                    430: void pio_write(int c, UINT32 addr, UINT8 data);
                    431: UINT8 pio_read(int c, UINT32 addr);
                    432: 
1.1.1.14  root      433: // pit
                    434: 
                    435: #define PIT_ALWAYS_RUNNING
                    436: 
                    437: typedef struct {
                    438:        INT32 count;
                    439:        UINT16 latch;
1.1.1.21  root      440:        UINT16 prev_latch, next_latch;
1.1.1.14  root      441:        UINT16 count_reg;
                    442:        UINT8 ctrl_reg;
                    443:        int count_latched;
                    444:        int low_read, high_read;
                    445:        int low_write, high_write;
                    446:        int mode;
                    447:        int status_latched;
                    448:        UINT8 status;
                    449:        // constant clock
                    450:        UINT32 expired_time;
                    451:        UINT32 prev_time;
1.1.1.17  root      452:        UINT64 accum;
1.1.1.14  root      453: } pit_t;
                    454: 
                    455: pit_t pit[3];
                    456: #ifndef PIT_ALWAYS_RUNNING
                    457: int pit_active;
                    458: #endif
                    459: 
                    460: void pit_init();
                    461: void pit_write(int ch, UINT8 val);
                    462: UINT8 pit_read(int ch);
                    463: int pit_run(int ch, UINT32 cur_time);
                    464: void pit_latch_count(int ch);
                    465: int pit_get_expired_time(int ch);
                    466: 
                    467: UINT8 system_port = 0;
                    468: 
1.1.1.20  root      469: // sio
                    470: 
                    471: #define SIO_BUFFER_SIZE 1024
                    472: 
                    473: typedef struct {
                    474:        int channel;
                    475:        
                    476:        FIFO *send_buffer;
                    477:        FIFO *recv_buffer;
                    478:        
                    479:        union {
                    480:                UINT16 w;
                    481:                struct {
                    482: #ifdef __BIG_ENDIAN__
                    483:                        UINT8 h, l;
                    484: #else
                    485:                        UINT8 l, h;
                    486: #endif
                    487:                } b;
                    488:        } divisor;
                    489:        UINT16 prev_divisor;
                    490:        UINT8 line_ctrl, prev_line_ctrl;
                    491:        UINT8 selector;
                    492:        
                    493:        UINT8 modem_ctrl;
1.1.1.21  root      494:        bool set_brk, set_rts, set_dtr;
                    495:        bool prev_set_brk;
                    496: //     bool prev_set_rts, prev_set_dtr;
1.1.1.20  root      497:        
                    498:        UINT8 line_stat_buf, line_stat_err;
                    499:        UINT8 modem_stat, prev_modem_stat;
                    500:        
                    501:        UINT8 irq_enable;
                    502:        UINT8 irq_identify;
                    503:        
                    504:        UINT8 scratch;
                    505: } sio_t;
                    506: 
                    507: typedef struct {
                    508:        HANDLE hThread;
                    509:        CRITICAL_SECTION csSendData;
                    510:        CRITICAL_SECTION csRecvData;
                    511:        CRITICAL_SECTION csLineCtrl;
                    512:        CRITICAL_SECTION csLineStat;
                    513:        CRITICAL_SECTION csModemCtrl;
                    514:        CRITICAL_SECTION csModemStat;
                    515: } sio_mt_t;
                    516: 
1.1.1.23  root      517: sio_t sio[4] = {0};
                    518: sio_mt_t sio_mt[4];
1.1.1.20  root      519: 
                    520: void sio_init();
                    521: void sio_finish();
1.1.1.22  root      522: void sio_release();
1.1.1.20  root      523: void sio_write(int c, UINT32 addr, UINT8 data);
                    524: UINT8 sio_read(int c, UINT32 addr);
                    525: void sio_update(int c);
                    526: void sio_update_irq(int c);
                    527: DWORD WINAPI sio_thread(void *lpx);
                    528: 
1.1.1.14  root      529: // cmos
                    530: 
                    531: UINT8 cmos[128];
                    532: UINT8 cmos_addr;
                    533: 
                    534: void cmos_init();
                    535: void cmos_write(int addr, UINT8 val);
                    536: UINT8 cmos_read(int addr);
                    537: 
                    538: // kbd (a20)
                    539: 
                    540: UINT8 kbd_data;
                    541: UINT8 kbd_status;
                    542: UINT8 kbd_command;
                    543: 
                    544: void kbd_init();
                    545: UINT8 kbd_read_data();
                    546: void kbd_write_data(UINT8 val);
                    547: UINT8 kbd_read_status();
                    548: void kbd_write_command(UINT8 val);
                    549: 
                    550: /* ----------------------------------------------------------------------------
1.1       root      551:        MS-DOS virtual machine
                    552: ---------------------------------------------------------------------------- */
                    553: 
1.1.1.24  root      554: #if defined(HAS_I386)
                    555: //#define SUPPORT_VCPI
                    556: #endif
1.1.1.23  root      557: #if defined(HAS_I286) || defined(HAS_I386)
                    558: #define SUPPORT_XMS
                    559: //#define SUPPORT_HMA
                    560: #endif
                    561: 
1.1       root      562: #define VECTOR_TOP     0
                    563: #define VECTOR_SIZE    0x400
                    564: #define BIOS_TOP       (VECTOR_TOP + VECTOR_SIZE)
                    565: #define BIOS_SIZE      0x100
                    566: #define WORK_TOP       (BIOS_TOP + BIOS_SIZE)
1.1.1.14  root      567: #define WORK_SIZE      0x200
1.1.1.20  root      568: // IO.SYS 0070:0000
                    569: #define DEVICE_TOP     (WORK_TOP + WORK_SIZE)
1.1.1.21  root      570: #define DEVICE_SIZE    0x100   /* 22 + 18 * 12 + 7 */
1.1.1.20  root      571: #define DOS_INFO_TOP   (DEVICE_TOP + DEVICE_SIZE)
1.1       root      572: #define DOS_INFO_SIZE  0x100
1.1.1.26  root      573: //#define EXT_BIOS_TOP (DOS_INFO_TOP + DOS_INFO_SIZE)
                    574: //#define EXT_BIOS_SIZE        0x400
                    575: #ifdef EXT_BIOS_TOP
1.1.1.20  root      576: #define DPB_TOP                (EXT_BIOS_TOP + EXT_BIOS_SIZE)
1.1.1.26  root      577: #else
                    578: #define DPB_TOP                (DOS_INFO_TOP + DOS_INFO_SIZE)
                    579: #endif
1.1       root      580: #define DPB_SIZE       0x400
1.1.1.16  root      581: #define SFT_TOP                (DPB_TOP + DPB_SIZE)
                    582: #define SFT_SIZE       0x4b0   /* 6 + 0x3b * 20 */
                    583: #define DISK_BUF_TOP   (SFT_TOP + SFT_SIZE)
1.1.1.14  root      584: #define DISK_BUF_SIZE  0x20
                    585: #define CDS_TOP                (DISK_BUF_TOP + DISK_BUF_SIZE)
1.1       root      586: #define CDS_SIZE       0x80
                    587: #define FCB_TABLE_TOP  (CDS_TOP + CDS_SIZE)
                    588: #define FCB_TABLE_SIZE 0x10
1.1.1.26  root      589: #define SDA_TOP                (FCB_TABLE_TOP + FCB_TABLE_SIZE)
1.1.1.18  root      590: #define SDA_SIZE       0xb0
1.1.1.13  root      591: // nls tables
1.1.1.18  root      592: #define UPPERTABLE_TOP (SDA_TOP + SDA_SIZE)
1.1.1.13  root      593: #define UPPERTABLE_SIZE        0x82
1.1.1.18  root      594: #define LOWERTABLE_TOP (UPPERTABLE_TOP + UPPERTABLE_SIZE)
                    595: #define LOWERTABLE_SIZE        0x82
                    596: #define FILENAME_UPPERTABLE_TOP (LOWERTABLE_TOP + LOWERTABLE_SIZE)
1.1.1.13  root      597: #define FILENAME_UPPERTABLE_SIZE 0x82
                    598: #define FILENAME_TERMINATOR_TOP (FILENAME_UPPERTABLE_TOP + FILENAME_UPPERTABLE_SIZE)
                    599: #define FILENAME_TERMINATOR_SIZE 0x20  /* requirement: 10 + 14(terminate chars) */
                    600: #define COLLATING_TABLE_TOP (FILENAME_TERMINATOR_TOP + FILENAME_TERMINATOR_SIZE)
                    601: #define COLLATING_TABLE_SIZE 0x102
                    602: #define DBCS_TOP       (COLLATING_TABLE_TOP + COLLATING_TABLE_SIZE)
1.1       root      603: #define DBCS_TABLE     (DBCS_TOP + 2)
                    604: #define DBCS_SIZE      0x10
1.1.1.13  root      605: #define MSDOS_SYSTEM_DATA_END (DBCS_TOP + DBCS_SIZE)
                    606: #define MEMORY_TOP     ((MSDOS_SYSTEM_DATA_END + 15) & ~15U)
1.1.1.22  root      607: #ifdef SUPPORT_GRAPHIC_SCREEN
                    608: #define MEMORY_END     0xa0000
                    609: #define VGA_VRAM_TOP   0xa0000
                    610: #else
1.1.1.7   root      611: #define MEMORY_END     0xb8000
1.1.1.22  root      612: #endif
1.1.1.7   root      613: #define TEXT_VRAM_TOP  0xb8000
1.1.1.14  root      614: #define EMS_TOP                0xc0000
                    615: #define EMS_SIZE       0x10000
                    616: UINT32 UMB_TOP = EMS_TOP; // EMS is disabled
1.1.1.7   root      617: #define UMB_END                0xf8000
                    618: #define SHADOW_BUF_TOP 0xf8000
1.1.1.14  root      619: #define EMB_TOP                0x10fff0
                    620: #define EMB_END                MAX_MEM
                    621: 
                    622: UINT32 IRET_TOP = 0;
                    623: #define IRET_SIZE      0x100
                    624: UINT32 XMS_TOP = 0;
1.1.1.23  root      625: #define XMS_SIZE       0x20    /* 18 + 6 + 7 */
1.1       root      626: 
                    627: //#define ENV_SIZE     0x800
                    628: #define ENV_SIZE       0x2000
                    629: #define PSP_SIZE       0x100
1.1.1.27! root      630: #define PSP_SYSTEM     0x0008
1.1       root      631: 
                    632: #define MAX_FILES      128
                    633: #define MAX_PROCESS    16
1.1.1.12  root      634: #define MAX_DTAINFO    128
1.1.1.11  root      635: #define LFN_DTA_LADDR  0x10FFF0
1.1.1.12  root      636: #define FIND_MAGIC     0x46696e64
1.1       root      637: 
1.1.1.16  root      638: #define DUP_STDIN      27
                    639: #define DUP_STDOUT     28
                    640: #define DUP_STDERR     29
                    641: #define DUP_STDAUX     30
                    642: #define DUP_STDPRN     31
1.1       root      643: 
1.1.1.16  root      644: //#define MAP_AUX_DEVICE_TO_FILE
                    645: //#define MAP_PRN_DEVICE_TO_FILE
1.1       root      646: 
                    647: #pragma pack(1)
                    648: typedef struct {
                    649:        UINT8 mz;
                    650:        UINT16 psp;
1.1.1.24  root      651:        UINT16 paragraphs;
                    652:        UINT8 reserved[3];
1.1.1.3   root      653:        char prog_name[8];
1.1       root      654: } mcb_t;
                    655: #pragma pack()
                    656: 
1.1.1.23  root      657: #ifdef SUPPORT_HMA
                    658: #pragma pack(1)
                    659: typedef struct {
                    660:        UINT8 ms[2];
                    661:        UINT16 owner;
                    662:        UINT16 size;
                    663:        UINT16 next;
                    664: } hma_mcb_t;
                    665: #pragma pack()
                    666: #endif
                    667: 
1.1       root      668: #pragma pack(1)
                    669: typedef struct {
                    670:        UINT16 env_seg;
                    671:        PAIR32 cmd_line;
                    672:        PAIR32 fcb1;
                    673:        PAIR32 fcb2;
                    674:        UINT16 sp;
                    675:        UINT16 ss;
                    676:        UINT16 ip;
                    677:        UINT16 cs;
                    678: } param_block_t;
                    679: #pragma pack()
                    680: 
                    681: #pragma pack(1)
                    682: typedef struct {
                    683:        UINT8 len;
                    684:        char cmd[127];
                    685: } cmd_line_t;
                    686: #pragma pack()
                    687: 
                    688: #pragma pack(1)
                    689: typedef struct {
                    690:        UINT8 exit[2];
                    691:        UINT16 first_mcb;
                    692:        UINT8 reserved_1;
                    693:        UINT8 far_call;
                    694:        PAIR32 cpm_entry;
                    695:        PAIR32 int_22h;
                    696:        PAIR32 int_23h;
                    697:        PAIR32 int_24h;
                    698:        UINT16 parent_psp;
                    699:        UINT8 file_table[20];
                    700:        UINT16 env_seg;
                    701:        PAIR32 stack;
1.1.1.12  root      702:        UINT16 file_table_size;
                    703:        PAIR32 file_table_ptr;
                    704:        UINT8 reserved_2[24];
1.1       root      705:        UINT8 service[3];
                    706:        UINT8 reserved_3[2];
                    707:        UINT8 ex_fcb[7];
                    708:        UINT8 fcb1[16];
                    709:        UINT8 fcb2[20];
                    710:        UINT8 buffer[128];
                    711: } psp_t;
                    712: #pragma pack()
                    713: 
                    714: #pragma pack(1)
                    715: typedef struct {
                    716:        UINT16 mz;
                    717:        UINT16 extra_bytes;
                    718:        UINT16 pages;
                    719:        UINT16 relocations;
                    720:        UINT16 header_size;
                    721:        UINT16 min_alloc;
                    722:        UINT16 max_alloc;
                    723:        UINT16 init_ss;
                    724:        UINT16 init_sp;
                    725:        UINT16 check_sum;
                    726:        UINT16 init_ip;
                    727:        UINT16 init_cs;
                    728:        UINT16 relocation_table;
                    729:        UINT16 overlay;
                    730: } exe_header_t;
                    731: #pragma pack()
                    732: 
                    733: #pragma pack(1)
                    734: typedef struct {
                    735:        UINT8 flag;
                    736:        UINT8 reserved[5];
                    737:        UINT8 attribute;
                    738: } ext_fcb_t;
                    739: #pragma pack()
                    740: 
                    741: #pragma pack(1)
                    742: typedef struct {
                    743:        UINT8 drive;
                    744:        UINT8 file_name[8 + 3];
                    745:        UINT16 current_block;
                    746:        UINT16 record_size;
                    747:        UINT32 file_size;
                    748:        UINT16 date;
                    749:        UINT16 time;
1.1.1.12  root      750:        union {
                    751:                UINT8 reserved[8];
                    752:                HANDLE handle;
                    753:        };
1.1       root      754:        UINT8 cur_record;
                    755:        UINT32 rand_record;
                    756: } fcb_t;
                    757: #pragma pack()
                    758: 
                    759: #pragma pack(1)
                    760: typedef struct {
                    761:        UINT8 drive;
                    762:        UINT8 file_name[8 + 3];
                    763:        UINT8 attribute;
                    764:        UINT8 nt_res;
                    765:        UINT8 create_time_ms;
                    766:        UINT16 creation_time;
                    767:        UINT16 creation_date;
                    768:        UINT16 last_access_date;
                    769:        UINT16 cluster_hi;
                    770:        UINT16 last_write_time;
                    771:        UINT16 last_write_date;
                    772:        UINT16 cluster_lo;
                    773:        UINT32 file_size;
                    774: } find_fcb_t;
                    775: #pragma pack()
                    776: 
                    777: #pragma pack(1)
                    778: typedef struct {
1.1.1.12  root      779:        union {
                    780:                UINT8 reserved[21];
                    781:                struct {
                    782:                        UINT32 find_magic;
                    783:                        UINT32 dta_index;
                    784:                };
                    785:        };
1.1       root      786:        UINT8 attrib;
                    787:        UINT16 time;
                    788:        UINT16 date;
                    789:        UINT32 size;
                    790:        char name[13];
                    791: } find_t;
                    792: #pragma pack()
                    793: 
                    794: #pragma pack(1)
                    795: typedef struct {
                    796:        UINT32 attrib;
                    797:        PAIR32 ctime_lo;
                    798:        PAIR32 ctime_hi;
                    799:        PAIR32 atime_lo;
                    800:        PAIR32 atime_hi;
                    801:        PAIR32 mtime_lo;
                    802:        PAIR32 mtime_hi;
                    803:        UINT32 size_hi;
                    804:        UINT32 size_lo;
                    805:        UINT8 reserved[8];
                    806:        char full_name[260];
                    807:        char short_name[14];
                    808: } find_lfn_t;
                    809: #pragma pack()
                    810: 
                    811: #pragma pack(1)
                    812: typedef struct {
                    813:        UINT16 info_level;
                    814:        UINT32 serial_number;
                    815:        char volume_label[11];
                    816:        char file_system[8];
                    817: } drive_info_t;
                    818: #pragma pack()
                    819: 
                    820: #pragma pack(1)
                    821: typedef struct {
                    822:        UINT16 size_of_structure;
                    823:        UINT16 structure_version;
                    824:        UINT32 sectors_per_cluster;
                    825:        UINT32 bytes_per_sector;
                    826:        UINT32 available_clusters_on_drive;
                    827:        UINT32 total_clusters_on_drive;
                    828:        UINT32 available_sectors_on_drive;
                    829:        UINT32 total_sectors_on_drive;
                    830:        UINT32 available_allocation_units;
                    831:        UINT32 total_allocation_units;
                    832:        UINT8 reserved[8];
                    833: } ext_space_info_t;
                    834: #pragma pack()
                    835: 
                    836: #pragma pack(1)
                    837: typedef struct {
                    838:        UINT8 drive_num;
                    839:        UINT8 unit_num;
                    840:        UINT16 bytes_per_sector;
                    841:        UINT8 highest_sector_num;
                    842:        UINT8 shift_count;
                    843:        UINT16 reserved_sectors;
                    844:        UINT8 fat_num;
                    845:        UINT16 root_entries;
                    846:        UINT16 first_data_sector;
                    847:        UINT16 highest_cluster_num;
                    848:        UINT16 sectors_per_fat;
                    849:        UINT16 first_dir_sector;
                    850:        UINT32 device_driver_header;
                    851:        UINT8 media_type;
                    852:        UINT8 drive_accessed;
                    853:        UINT16 next_dpb_ofs;
                    854:        UINT16 next_dpb_seg;
                    855:        UINT16 first_free_cluster;
                    856:        UINT16 free_clusters;
1.1.1.12  root      857:        // extended
                    858:        UINT16 fat_mirroring;
                    859:        UINT16 info_sector;
                    860:        UINT16 backup_boot_sector;
                    861:        UINT32 first_cluster_sector;
                    862:        UINT32 maximum_cluster_num;
                    863:        UINT32 fat_sectors;
                    864:        UINT32 root_cluster;
                    865:        UINT32 free_search_cluster;
1.1       root      866: } dpb_t;
                    867: #pragma pack()
                    868: 
                    869: #pragma pack(1)
                    870: typedef struct {
                    871:        char path_name[67];
                    872:        UINT16 drive_attrib;
                    873:        UINT8 physical_drive_number;
                    874: } cds_t;
                    875: #pragma pack()
                    876: 
                    877: #pragma pack(1)
                    878: typedef struct {
1.1.1.18  root      879:        UINT8 reserved_1[3];            // -34
                    880:        UINT8 switchar;                 // -31 current switch character
                    881:        UINT8 malloc_strategy;          // -30 current memory allocation strategy
                    882:        UINT8 reserved_2[29];           // -29
                    883:        // ----- from DOSBox -----
                    884:        UINT8 crit_error_flag;          // 0x00 Critical Error Flag
                    885:        UINT8 indos_flag;               // 0x01 InDOS flag (count of active INT 21 calls)
                    886:        UINT8 drive_crit_error;         // 0x02 Drive on which current critical error occurred or FFh
                    887:        UINT8 locus_of_last_error;      // 0x03 locus of last error
                    888:        UINT16 extended_error_code;     // 0x04 extended error code of last error
                    889:        UINT8 suggested_action;         // 0x06 suggested action for last error
                    890:        UINT8 error_class;              // 0x07 class of last error
                    891:        PAIR32 last_error_pointer;      // 0x08 ES:DI pointer for last error
                    892:        PAIR32 current_dta;             // 0x0C current DTA (Disk Transfer Address)
                    893:        UINT16 current_psp;             // 0x10 current PSP
                    894:        UINT16 sp_int_23;               // 0x12 stores SP across an INT 23
                    895:        UINT16 return_code;             // 0x14 return code from last process termination (zerod after reading with AH=4Dh)
                    896:        UINT8 current_drive;            // 0x16 current drive
                    897:        UINT8 extended_break_flag;      // 0x17 extended break flag
                    898:        UINT8 fill[2];                  // 0x18 flag: code page switching || flag: copy of previous byte in case of INT 24 Abort
                    899: } sda_t;
                    900: #pragma pack()
                    901: 
                    902: #pragma pack(1)
                    903: typedef struct {
1.1.1.14  root      904:        UINT8 reserved_0[4];    // -38
                    905:        UINT16 magic_word;      // -34 from DOSBox
                    906:        UINT8 reserved_1[30];   // -32
1.1       root      907:        UINT16 first_mcb;       // -2
                    908:        PAIR32 first_dpb;       // +0
1.1.1.14  root      909:        PAIR32 first_sft;       // +4
1.1.1.20  root      910:        PAIR32 clock_device;    // +8
                    911:        PAIR32 con_device;      // +12
1.1.1.14  root      912:        UINT16 max_sector_len;  // +16
                    913:        PAIR32 disk_buf_info;   // +18 from DOSBox
1.1       root      914:        PAIR32 cds;             // +22
                    915:        PAIR32 fcb_table;       // +26
1.1.1.20  root      916:        UINT8 reserved_2[3];    // +30
1.1       root      917:        UINT8 last_drive;       // +33
1.1.1.14  root      918:        struct {
1.1.1.20  root      919:                PAIR32 next_driver;     // +34
1.1.1.14  root      920:                UINT16 attributes;      // +38
                    921:                UINT16 strategy;        // +40
                    922:                UINT16 interrupt;       // +42
                    923:                char dev_name[8];       // +44
                    924:        } nul_device;
1.1.1.20  root      925:        UINT8 reserved_3[11];   // +52
1.1       root      926:        UINT16 buffers_x;       // +63
                    927:        UINT16 buffers_y;       // +65
                    928:        UINT8 boot_drive;       // +67
                    929:        UINT8 i386_or_later;    // +68
                    930:        UINT16 ext_mem_size;    // +69
1.1.1.14  root      931:        PAIR32 disk_buf_heads;  // +71 from DOSBox
1.1.1.20  root      932:        UINT8 reserved_4[21];   // +75
1.1.1.5   root      933:        UINT8 dos_flag;         // +96
1.1.1.20  root      934:        UINT8 reserved_5[2];    // +97
1.1.1.15  root      935:        UINT8 umb_linked;       // +99 from DOSBox
1.1.1.20  root      936:        UINT8 reserved_6[2];    // +100
1.1.1.15  root      937:        UINT16 first_umb_fcb;   // +102 from DOSBox
                    938:        UINT16 first_mcb_2;     // +104 from DOSBox
1.1.1.21  root      939:        UINT8 nul_device_routine[7];
1.1       root      940: } dos_info_t;
                    941: #pragma pack()
                    942: 
1.1.1.14  root      943: #pragma pack(1)
                    944: typedef struct {
1.1.1.20  root      945:        PAIR32 next_driver;
                    946:        UINT16 attributes;
                    947:        UINT16 strategy;
                    948:        UINT16 interrupt;
                    949:        char dev_name[8];
                    950: } device_t;
                    951: #pragma pack()
                    952: 
                    953: #pragma pack(1)
                    954: typedef struct {
1.1.1.14  root      955:        UINT16 date_format;
                    956:        char currency_symbol[5];
                    957:        char thou_sep[2];
                    958:        char dec_sep[2];
                    959:        char date_sep[2];
                    960:        char time_sep[2];
                    961:        char currency_format;
                    962:        char currency_dec_digits;
                    963:        char time_format;
                    964:        PAIR32 case_map;
                    965:        char list_sep[2];
                    966:        char reserved[10];
                    967: } country_info_t;
                    968: #pragma pack()
                    969: 
1.1       root      970: typedef struct {
                    971:        char path[MAX_PATH];
                    972:        int valid;
                    973:        int id;
                    974:        int atty;
                    975:        int mode;
                    976:        UINT16 info;
                    977:        UINT16 psp;
                    978: } file_handler_t;
                    979: 
                    980: static const struct {
                    981:        int mode;
                    982:        int in;
                    983:        int out;
                    984: } file_mode[] = {
1.1.1.11  root      985:        { _O_RDONLY | _O_BINARY, 1, 0 },
1.1       root      986:        { _O_WRONLY | _O_BINARY, 0, 1 },
                    987:        { _O_RDWR   | _O_BINARY, 1, 1 },
                    988: };
                    989: 
                    990: typedef struct {
                    991:        UINT16 psp;
                    992:        char module_dir[MAX_PATH];
1.1.1.27! root      993: #ifdef USE_DEBUGGER
        !           994:        char module_path[MAX_PATH];
        !           995: #endif
1.1       root      996:        PAIR32 dta;
                    997:        UINT8 switchar;
                    998:        UINT8 verify;
                    999:        int max_files;
                   1000:        char volume_label[MAX_PATH];
                   1001:        bool parent_int_10h_feh_called;
                   1002:        bool parent_int_10h_ffh_called;
1.1.1.12  root     1003:        UINT16 parent_ds;
1.1.1.25  root     1004:        UINT16 parent_es;
1.1.1.14  root     1005:        struct {
                   1006:                UINT16 handle;
                   1007:                UINT16 page;
                   1008:                bool mapped;
                   1009:        } ems_pages[4];
                   1010:        bool ems_pages_stored;
1.1.1.22  root     1011:        bool called_by_int2eh;
1.1       root     1012: } process_t;
                   1013: 
1.1.1.11  root     1014: typedef struct {
                   1015:        UINT16 psp;
                   1016:        UINT32 dta;
1.1.1.12  root     1017:        UINT8 allowable_mask;
                   1018:        UINT8 required_mask;
1.1.1.11  root     1019:        HANDLE find_handle;
                   1020: } dtainfo_t;
                   1021: 
1.1.1.24  root     1022: UINT8 dos_major_version = 7;   // Windows 98 Second Edition
                   1023: UINT8 dos_minor_version = 10;
                   1024: UINT8 win_major_version = 4;
                   1025: UINT8 win_minor_version = 10;
1.1.1.8   root     1026: 
1.1.1.7   root     1027: UINT16 first_mcb;
1.1       root     1028: UINT16 current_psp;
                   1029: 
                   1030: int retval = 0;
                   1031: UINT16 error_code = 0;
                   1032: 
                   1033: file_handler_t file_handler[MAX_FILES];
                   1034: UINT8 file_buffer[0x100000];
                   1035: 
                   1036: process_t process[MAX_PROCESS];
1.1.1.11  root     1037: dtainfo_t dtalist[MAX_DTAINFO];
1.1       root     1038: 
1.1.1.6   root     1039: UINT16 malloc_strategy = 0;
                   1040: 
1.1.1.12  root     1041: char comspec_path[MAX_PATH] = "C:\\COMMAND.COM";
                   1042: 
1.1       root     1043: void msdos_syscall(unsigned num);
                   1044: int msdos_init(int argc, char *argv[], char *envp[], int standard_env);
                   1045: void msdos_finish();
                   1046: 
                   1047: // console
                   1048: 
1.1.1.12  root     1049: #define SCR_BUF_WIDTH  256
                   1050: #define SCR_BUF_HEIGHT 128
1.1       root     1051: 
                   1052: #define SET_RECT(rect, l, t, r, b) { \
                   1053:        rect.Left = l; \
                   1054:        rect.Top = t; \
                   1055:        rect.Right = r; \
                   1056:        rect.Bottom = b; \
                   1057: }
                   1058: 
1.1.1.19  root     1059: DWORD dwConsoleMode = 0;
                   1060: 
1.1.1.12  root     1061: CHAR_INFO scr_buf[SCR_BUF_WIDTH * SCR_BUF_HEIGHT];
                   1062: char scr_char[SCR_BUF_WIDTH * SCR_BUF_HEIGHT];
                   1063: WORD scr_attr[SCR_BUF_WIDTH * SCR_BUF_HEIGHT];
1.1       root     1064: COORD scr_buf_size;
                   1065: COORD scr_buf_pos;
                   1066: int scr_width, scr_height;
1.1.1.12  root     1067: int scr_top;
1.1.1.10  root     1068: bool restore_console_on_exit = false;
1.1       root     1069: bool cursor_moved;
                   1070: 
1.1.1.22  root     1071: FIFO *key_buf_char = NULL;
                   1072: FIFO *key_buf_scan = NULL;
1.1.1.19  root     1073: bool key_changed = false;
1.1.1.4   root     1074: UINT32 key_code = 0;
1.1.1.27! root     1075: UINT32 key_recv = 0;
1.1       root     1076: 
1.1.1.27! root     1077: UINT8 ctrl_break_checking = 0x00; // ???
        !          1078: bool ctrl_break_detected = false;
        !          1079: bool ctrl_break_pressed = false;
1.1.1.21  root     1080: bool ctrl_c_pressed = false;
1.1.1.27! root     1081: bool raise_int_1bh = false;
1.1.1.21  root     1082: 
1.1       root     1083: int active_code_page;
                   1084: int system_code_page;
1.1.1.26  root     1085: int console_code_page;
1.1       root     1086: 
1.1.1.12  root     1087: UINT32 text_vram_top_address;
                   1088: UINT32 text_vram_end_address;
                   1089: UINT32 shadow_buffer_top_address;
                   1090: UINT32 shadow_buffer_end_address;
                   1091: int vram_pages;
1.1       root     1092: bool int_10h_feh_called = false;
                   1093: bool int_10h_ffh_called = false;
                   1094: 
1.1.1.19  root     1095: #define MAX_MOUSE_BUTTONS      3
                   1096: 
1.1.1.21  root     1097: typedef struct {
1.1.1.19  root     1098:        bool active;
                   1099:        struct {
                   1100:                int x, y;
                   1101:        } position, prev_position, max_position, min_position, mickey;
                   1102:        struct {
                   1103:                bool status;
                   1104:                int pressed_times;
                   1105:                int released_times;
                   1106:                struct {
                   1107:                        int x, y;
                   1108:                } pressed_position;
                   1109:                struct {
                   1110:                        int x, y;
                   1111:                } released_position;
                   1112:        } buttons[MAX_MOUSE_BUTTONS];
                   1113:        int get_buttons()
                   1114:        {
                   1115:                int val = 0;
                   1116:                for(int i = 0; i < MAX_MOUSE_BUTTONS; i++) {
                   1117:                        if(buttons[i].status) {
                   1118:                                val |= 1 << i;
                   1119:                        }
                   1120:                }
                   1121:                return(val);
                   1122:        }
                   1123:        UINT16 status;
                   1124:        UINT16 status_irq;
                   1125:        UINT16 call_mask;
                   1126:        PAIR32 call_addr;
                   1127:        // dummy
                   1128:        UINT16 sensitivity[3];
                   1129:        UINT16 display_page;
                   1130:        UINT16 language;
                   1131:        UINT16 hot_spot[2];
1.1.1.21  root     1132: } mouse_t;
                   1133: 
                   1134: mouse_t mouse;
1.1.1.19  root     1135: 
                   1136: UINT16 mouse_push_ax;
                   1137: UINT16 mouse_push_bx;
                   1138: UINT16 mouse_push_cx;
                   1139: UINT16 mouse_push_dx;
                   1140: UINT16 mouse_push_si;
                   1141: UINT16 mouse_push_di;
                   1142: 
1.1.1.23  root     1143: // hma
                   1144: 
                   1145: #ifdef SUPPORT_HMA
                   1146: bool is_hma_used_by_xms = false;
                   1147: bool is_hma_used_by_int_2fh = false;
                   1148: #endif
                   1149: 
                   1150: // xms
                   1151: 
                   1152: #ifdef SUPPORT_XMS
1.1.1.24  root     1153: typedef struct emb_handle_s {
                   1154:        UINT32 handle; // 0=allocated
                   1155:        offs_t address;
1.1.1.23  root     1156:        int size_kb;
                   1157:        int lock;
1.1.1.24  root     1158:        struct emb_handle_s *prev;
                   1159:        struct emb_handle_s *next;
                   1160: } emb_handle_t;
1.1.1.23  root     1161: 
1.1.1.24  root     1162: emb_handle_t *emb_handle_top = NULL;
1.1.1.23  root     1163: int xms_a20_local_enb_count;
                   1164: UINT16 xms_dx_after_call_08h = 0;
1.1.1.26  root     1165: 
                   1166: void msdos_xms_init();
                   1167: void msdos_xms_finish();
                   1168: void msdos_xms_release();
                   1169: emb_handle_t *msdos_xms_get_emb_handle(int handle);
                   1170: int msdos_xms_get_unused_emb_handle_id();
                   1171: int msdos_xms_get_unused_emb_handle_count();
                   1172: void msdos_xms_split_emb_handle(emb_handle_t *emb_handle, int size_kb);
                   1173: void msdos_xms_combine_emb_handles(emb_handle_t *emb_handle);
                   1174: emb_handle_t *msdos_xms_alloc_emb_handle(int size_kb);
                   1175: void msdos_xms_free_emb_handle(emb_handle_t *emb_handle);
1.1.1.23  root     1176: #endif
                   1177: 
1.1       root     1178: #endif

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