353 lines
11 KiB
C
353 lines
11 KiB
C
/* Included by initialisation functions */
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#define IN_INIT_MOD
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#include "version.h"
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#include "date.h"
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#include "time.h"
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#include "mcb.h"
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#include "sft.h"
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#include "fat.h"
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#include "file.h"
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#include "cds.h"
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#include "device.h"
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#include "kbd.h"
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#include "error.h"
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#include "fcb.h"
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#include "tail.h"
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#include "process.h"
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#include "pcb.h"
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#include "buffer.h"
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#include "dcb.h"
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#include "lol.h"
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#include "init-dat.h"
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#include "nls.h"
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#include "kconfig.h"
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/* MSC places uninitialized data into COMDEF records,
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that end up in DATA segment. this can't be tolerated in INIT code.
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please make sure, that ALL data in INIT is initialized !!
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These guys are marked BSS_INIT to mark that they really should be BSS
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but can't be because of MS
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*/
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#ifdef _MSC_VER
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#define BSS_INIT(x) = x
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#else
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#define BSS_INIT(x)
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#endif
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extern struct _KernelConfig InitKernelConfig;
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/*
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* Functions in `INIT_TEXT' may need to call functions in `_TEXT'. The entry
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* calls for the latter functions therefore need to be wrapped up with far
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* entry points.
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*/
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#define printf init_printf
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#define sprintf init_sprintf
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#ifndef __WATCOMC__
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#define execrh init_execrh
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#define memcpy init_memcpy
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#define fmemcpy init_fmemcpy
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#define fmemset init_fmemset
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#define fmemcmp init_fmemcmp
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#define memcmp init_memcmp
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#define memset init_memset
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#define strchr init_strchr
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#define strcpy init_strcpy
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#define strlen init_strlen
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#define fstrlen init_fstrlen
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#endif
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#define open init_DosOpen
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/* execrh.asm */
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#ifndef __WATCOMC__
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WORD ASMPASCAL execrh(request FAR *, struct dhdr FAR *);
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#endif
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/* asmsupt.asm */
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VOID ASMPASCAL memset( void *s, int ch, size_t n);
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VOID ASMPASCAL fmemset( void FAR *s, int ch, size_t n);
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int ASMPASCAL memcmp(const void *m1, const void *m2, size_t n);
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int ASMPASCAL fmemcmp(const void FAR *m1, const void FAR *m2, size_t n);
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VOID ASMPASCAL memcpy( void *d, const void *s, size_t n);
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VOID ASMPASCAL fmemcpy( void FAR *d, const void FAR *s, size_t n);
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VOID ASMPASCAL strcpy(char *d, const char *s);
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size_t ASMPASCAL strlen(const char *s);
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size_t ASMPASCAL fstrlen(const char FAR *s);
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char * ASMPASCAL strchr(const char *s, int ch);
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#ifdef __WATCOMC__
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/* bx, cx, dx and es not used or clobbered for all asmsupt.asm functions except
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(f)memchr/(f)strchr (which clobber dx) */
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#pragma aux (pascal) pascal_ax modify exact [ax]
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#pragma aux (pascal_ax) memset
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#pragma aux (pascal_ax) fmemset
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#pragma aux (pascal_ax) memcpy
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#pragma aux (pascal_ax) fmemcpy
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#pragma aux (pascal_ax) memcmp modify nomemory
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#pragma aux (pascal_ax) fmemcmp modify nomemory
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#pragma aux (pascal_ax) strcpy
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#pragma aux (pascal_ax) strlen modify nomemory
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#pragma aux (pascal_ax) fstrlen modify nomemory
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#pragma aux (pascal) strchr modify exact [ax dx] nomemory
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#endif
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#undef LINESIZE
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#define LINESIZE KBD_MAXLENGTH
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/*inithma.c*/
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extern BYTE DosLoadedInHMA;
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void MoveKernel(unsigned NewKernelSegment);
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void setvec(unsigned char intno, intvec vector);
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#ifndef __WATCOMC__
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#define getvec init_getvec
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#endif
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intvec getvec(unsigned char intno);
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#define GLOBAL extern
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#define NAMEMAX MAX_CDSPATH /* Maximum path for CDS */
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#define NFILES 16 /* number of files in table */
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#define NFCBS 16 /* number of fcbs */
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#define NSTACKS 8 /* number of stacks */
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#define STACKSIZE 256 /* default stacksize */
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#define NLAST 5 /* last drive */
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#define NUMBUFF 20 /* Number of track buffers at INIT time */
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/* -- must be at least 3 */
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#define MAX_HARD_DRIVE 8
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#define NDEV 26 /* up to Z: */
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#include "config.h" /* config structure */
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/* config.c */
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extern struct config Config;
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VOID PreConfig(VOID);
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VOID PreConfig2(VOID);
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VOID DoConfig(int pass);
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VOID PostConfig(VOID);
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VOID configDone(VOID);
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VOID FAR * KernelAlloc(size_t nBytes, char type, int mode);
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void FAR * KernelAllocPara(size_t nPara, char type, char *name, int mode);
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char *strcat(char * d, const char * s);
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BYTE * GetStringArg(BYTE * pLine, BYTE * pszString);
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void DoInstall(void);
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UWORD GetBiosKey(int timeout);
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/* diskinit.c */
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COUNT dsk_init(VOID);
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/* int2f.asm */
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COUNT ASMPASCAL Umb_Test(void);
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COUNT ASMPASCAL UMB_get_largest(void FAR * driverAddress,
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UCOUNT * seg, UCOUNT * size);
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#ifdef __WATCOMC__
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#pragma aux (pascal) UMB_get_largest modify exact [ax bx cx dx]
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#endif
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/* inithma.c */
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int MoveKernelToHMA(void);
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VOID FAR * HMAalloc(COUNT bytesToAllocate);
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/* initoem.c */
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unsigned init_oem(void);
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void movebda(size_t bytes, unsigned new_seg);
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unsigned ebdasize(void);
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/* dosidle.asm */
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extern void ASM DosIdle_hlt(VOID);
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/* intr.asm */
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/*
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* Invoke interrupt "nr" with all registers from *rp loaded
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* into the processor registers (except: SS, SP,& flags)
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* On return, all processor registers are stored into *rp (including
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* flags).
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*/
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unsigned ASMPASCAL init_call_intr(int nr, iregs * rp);
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unsigned ASMPASCAL read(int fd, void *buf, unsigned count);
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int ASMPASCAL open(const char *pathname, int flags);
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int ASMPASCAL close(int fd);
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int ASMPASCAL dup2(int oldfd, int newfd);
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ULONG ASMPASCAL lseek(int fd, long position);
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seg ASMPASCAL allocmem(UWORD size);
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void ASMPASCAL init_PSPSet(seg psp_seg);
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int ASMPASCAL init_DosExec(int mode, exec_blk * ep, char * lp);
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int ASMPASCAL init_setdrive(int drive);
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int ASMPASCAL init_switchar(int chr);
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void ASMPASCAL keycheck(void);
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void ASMPASCAL set_DTA(void far *dta);
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#ifdef __WATCOMC__
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#pragma aux (pascal) init_call_intr modify exact [ax]
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#pragma aux (pascal) read modify exact [ax bx cx dx]
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#pragma aux (pascal) init_DosOpen modify exact [ax bx dx]
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#pragma aux (pascal) close modify exact [ax bx]
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#pragma aux (pascal) dup2 modify exact [ax bx cx]
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#pragma aux (pascal) allocmem modify exact [ax bx]
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#pragma aux (pascal) init_PSPSet modify exact [ax bx]
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#pragma aux (pascal) init_DosExec modify exact [ax bx dx es]
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#pragma aux (pascal) init_setdrive modify exact [ax bx dx]
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#pragma aux (pascal) init_switchar modify exact [ax bx dx]
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#pragma aux (pascal) keycheck modify exact [ax]
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#pragma aux (pascal) set_DTA modify exact [ax bx dx]
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#endif
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/* irqstack.asm */
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VOID ASMCFUNC init_stacks(VOID FAR * stack_base, COUNT nStacks,
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WORD stackSize, ...);
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/* inthndlr.c */
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VOID ASMCFUNC FAR int0_handler(void);
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VOID ASMCFUNC FAR int6_handler(void);
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VOID ASMCFUNC FAR int19_handler(void);
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VOID ASMCFUNC FAR empty_handler(void);
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VOID ASMCFUNC FAR int20_handler(void);
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VOID ASMCFUNC FAR int21_handler(void);
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VOID ASMCFUNC FAR int22_handler(void);
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VOID ASMCFUNC FAR int24_handler(void);
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VOID ASMCFUNC FAR low_int25_handler(void);
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VOID ASMCFUNC FAR low_int26_handler(void);
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VOID ASMCFUNC FAR int27_handler(void);
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VOID ASMCFUNC FAR int28_handler(void);
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VOID ASMCFUNC FAR int29_handler(void);
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VOID ASMCFUNC FAR int2a_handler(void);
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VOID ASMCFUNC FAR int2f_handler(void);
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VOID ASMCFUNC FAR cpm_entry(void);
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#define cpm_entry DOSDATA(cpm_entry)
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#define int29_handler DOSTEXT(int29_handler)
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/* kernel.asm */
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#ifdef __GNUC__
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VOID ASMCFUNC init_call_p_0(struct config FAR *Config, ...) asm("init_call_p_0");
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#else
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VOID ASMCFUNC FAR init_call_p_0(struct config FAR *Config); /* P_0, actually */
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#endif
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/* main.c */
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VOID ASMCFUNC FreeDOSmain(void);
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BOOL init_device(struct dhdr FAR * dhp, char * cmdLine,
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COUNT mode, char FAR **top);
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VOID init_fatal(BYTE * err_msg);
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/* prf.c */
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int VA_CDECL init_printf(CONST char * fmt, ...);
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int VA_CDECL init_sprintf(char * buff, CONST char * fmt, ...);
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/* procsupt.asm */
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VOID ASMCFUNC FAR got_cbreak(void);
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#define got_cbreak DOSTEXT(got_cbreak)
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/* initclk.c */
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extern void Init_clk_driver(void);
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extern UWORD HMAFree; /* first byte in HMA not yet used */
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extern unsigned CurrentKernelSegment;
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#ifdef __GNUC__
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extern struct _KernelConfig ASM LowKernelConfig;
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#define LowKernelConfig *(typeof(LowKernelConfig) FAR *)MK_FP(DOS_PSP, &LowKernelConfig)
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#else
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extern struct _KernelConfig FAR ASM LowKernelConfig;
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#endif
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extern WORD days[2][13];
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extern BYTE FAR *lpTop;
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extern BYTE ASM _ib_start[], ASM _ib_end[], ASM _init_end[];
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extern UWORD ram_top; /* How much ram in Kbytes */
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extern char singleStep;
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extern char SkipAllConfig;
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extern char master_env[128];
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extern struct lol FAR *LoL;
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extern struct dhdr DOSTEXTFAR ASM blk_dev; /* Block device (Disk) driver */
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extern struct buffer FAR *DOSFAR firstAvailableBuf; /* first 'available' buffer */
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extern struct lol ASM FAR DATASTART;
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extern BYTE DOSFAR ASM _HMATextAvailable; /* first byte of available CODE area */
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extern BYTE FAR ASM _HMATextStart[]; /* first byte of HMAable CODE area */
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extern BYTE FAR ASM _HMATextEnd[];
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extern BYTE DOSFAR ASM break_ena; /* break enabled flag */
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extern BYTE DOSFAR ASM _InitTextStart[]; /* first available byte of ram */
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extern BYTE DOSFAR ASM _InitTextEnd[];
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extern BYTE DOSFAR ASM ReturnAnyDosVersionExpected;
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extern BYTE DOSFAR ASM HaltCpuWhileIdle;
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extern BYTE DOSFAR ASM internal_data[];
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extern unsigned char DOSTEXTFAR ASM kbdType;
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extern struct {
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char ThisIsAConstantOne;
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short TableSize;
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struct CountrySpecificInfo C;
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} DOSFAR ASM nlsCountryInfoHardcoded;
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/*
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data shared between DSK.C and INITDISK.C
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*/
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extern UWORD DOSFAR LBA_WRITE_VERIFY;
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/* original interrupt vectors, at 70:xxxx */
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extern struct lowvec {
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unsigned char intno;
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intvec isv;
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} DOSTEXTFAR ASM intvec_table[5];
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/* floppy parameter table, at 70:xxxx */
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extern unsigned char DOSTEXTFAR ASM int1e_table[0xe];
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extern char DOSFAR DiskTransferBuffer[/*MAX_SEC_SIZE*/]; /* in dsk.c */
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struct RelocationTable {
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UBYTE jmpFar;
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UWORD jmpOffset;
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UWORD jmpSegment;
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UBYTE callNear;
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UWORD callOffset;
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};
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struct RelocatedEntry {
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UBYTE callNear;
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UWORD callOffset;
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UBYTE jmpFar;
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UWORD jmpOffset;
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UWORD jmpSegment;
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};
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extern struct RelocationTable DOSFAR ASM _HMARelocationTableStart[];
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extern struct RelocationTable DOSFAR ASM _HMARelocationTableEnd[];
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extern void FAR *DOSFAR ASM XMSDriverAddress;
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#ifdef __GNUC__
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extern VOID _EnableA20(VOID);
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extern VOID _DisableA20(VOID);
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#else
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extern VOID ASMPASCAL FAR _EnableA20(VOID);
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extern VOID ASMPASCAL FAR _DisableA20(VOID);
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#endif
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extern void FAR * ASMPASCAL DetectXMSDriver(VOID);
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extern int ASMPASCAL init_call_XMScall(void FAR * driverAddress, UWORD ax,
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UWORD dx);
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#ifdef __WATCOMC__
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#pragma aux (pascal) DetectXMSDriver modify exact [ax dx]
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#pragma aux (pascal) _EnableA20 modify exact [ax]
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#pragma aux (pascal) _DisableA20 modify exact [ax]
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#endif
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#if defined(WATCOM) && 0
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ULONG ASMCFUNC FAR MULULUS(ULONG mul1, UWORD mul2); /* MULtiply ULong by UShort */
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ULONG ASMCFUNC FAR MULULUL(ULONG mul1, ULONG mul2); /* MULtiply ULong by ULong */
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ULONG ASMCFUNC FAR DIVULUS(ULONG mul1, UWORD mul2); /* DIVide ULong by UShort */
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ULONG ASMCFUNC FAR DIVMODULUS(ULONG mul1, UWORD mul2, UWORD * rem); /* DIVide ULong by UShort */
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#endif
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