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IBM.H
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C/C++ Source or Header
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1989-06-06
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135 lines
/* TCHK 2.1 - Howard Kapustein's Turbo C library 6-6-89 */
/* Copyright (C) 1988,1989 Howard Kapustein. All rights reserved. */
/* ibm.h - header file for IBM.C - IBM specific functions */
#ifndef IBM_HEADER
#define IBM_HEADER 1
#include <howard.h>
/* ROM id */
#define PC 0xFF
#define XT 0xFE
#define Portable_PC 0xFE
#define PCjr 0xFD
#define AT 0xFC
#define AT3x9 0xFC
#define XT286 0xFC
#define PS2_Model_50 0xFC
#define PS2_Model_60 0xFC
#define XT2 0xFB
#define PS2_Model_25 0xFA
#define PS2_Model_30 0xFA
#define PC_Convertible 0xF9
#define PS2_Model_80 0xF8
#define Compaq 0x2D
#define Compaq_Plus 0x9A
/* machine_id codes */
#define PC_id 1
#define XT_id 2
#define Portable_PC_id 3 /* can't currently be identified */
#define PCjr_id 4
#define AT_id 5
#define AT3x9_id 6
#define XT2_id 7
#define XT286_id 8
#define PC_Convertible_id 9
#define PS2_Model_25_id 10 /* ?, see docs */
#define PS2_Model_30_id 11
#define PS2_Model_50_id 12
#define PS2_Model_60_id 13
#define PS2_Model_80_id 14
#define Unknown_id 99
/* Memory allocation strategies */
#define MEM_STRAT_FIRST 0 /* use first mem block large enough */
#define MEM_STRAT_BEST 1 /* use smallest mem block large enough */
#define MEM_STRAT_LAST 2 /* use high part of last usable mem block */
#define MEM_STRAT_BADDOS -1 /* using DOS earlier than 3.xx */
/* Disk id */
#define DISK_DSDD_8 0xFF /* Double-sided, 5 1/4" floppy, 8 sectors */
#define DISK_SSDD_8 0xFE /* Single-sided, 5 1/4" floppy, 8 sectors */
#define DISK_SS8_8 0xFE /* Single-sided, 8" floppy, 8 sectors */
#define DISK_DSDD_9 0xFD /* Double-sided, 5 1/4" floppy, 9 sectors */
#define DISK_SSDD_9 0xFC /* Single-sided floppy, 9 sectors */
#define DISK_DSQD_15 0xF9 /* Double-sided, 5 1/4" floppy, 15 sectors */
#define DISK_DS3_15 0xF9 /* Double-sided, 3 1/2" floppy, 9 sectors */
#define DISK_HARD 0xF8 /* Hard disk */
#define DISK_DS3_18 0xF0 /* Double-sided, 3 1/2" floppy, 18 sectors */
#define DISK_UNDEFINED 0xF0 /* undefined media type */
/* Note: if the disk is Single-sided, 8" 26 sectors,
it could have the id FE or FD */
#define DISK_INVALID 0x1 /* invalid disk specified */
/* EMS return (error?) codes */
#define EMS_SUCCESS 0x00 /* success */
#define EMS_ERROR_SOFTWARE 0x80 /* error in EMM software */
#define EMS_ERROR_HARDWARE 0x81 /* malfunction in EM hardware */
#define EMS_ERROR_UNDEFINED 0x84 /* function requested not defined */
typedef struct EMSrecord {
unsigned int handle;
unsigned int totalpages;
unsigned int availpages;
byte version;
byte emserror;
};
#define TIMER_TICKS *((long far *) 0x46Clu) /* Timer tick count */
#define isBREAKon() (getcbrk()==1?TRUE:FALSE)
#define setBREAK(b) setcbrk(b)
#define isVERIFYon() (getverify()==1?TRUE:FALSE)
#define setVERIFY(v) setverify(b)
/* Identification prototypes */
int is2nd8259(void); /* is second 8259 chip installed */
boolean isBlogical(void); /* is B: physical or logical */
boolean isExtended(void); /* is Extended memory available */
boolean iskey102(void); /* is keyboard 101/102 keys */
int isMCA(void); /* is bus Micro Channel Architecture */
int isrealtimeclock(void); /* is real-time clock installed */
int machine_id(void); /* determine machine id */
byte ROM_id(void); /* get ROM id */
char *ROM_date(void); /* get ROM date */
/* Compaq 386 prototypes */
unsigned char Compaq386GetCpuSpeed(unsigned int *speedvalue); /* Compaq 386: Get cpu speed */
void Compaq386SetCpuSpeed(unsigned char speed, unsigned int speedvalue); /* Compaq 386: Set cpu speed */
unsigned char Compaq386KbdType(void); /* Compaq 386: Determine attached keyboard type */
/* Pointing Device BIOS Interface prototypes */
int SetPointDevice(boolean enable); /* Pointing Device BIOS Interface: Enable/Disable (DV 2.x, PS/2) */
int ResetPointDevice(void); /* Pointing Device BIOS Interface: Reset (DV 2.x, PS/2) */
int SetRatePointDevice(unsigned char samplerate); /* Pointing Device BIOS Interface: Set Sampling Rate (DV 2.x, PS/2) */
int SetResPointDevice(unsigned char countpermm); /* Pointing Device BIOS Interface: Set Resolution (DV 2.x, PS/2) */
int GetTypePointDevice(void); /* Pointing Device BIOS Interface: Get Type (DV 2.x, PS/2) */
/* Disk prototypes */
boolean diskchanged(int drive); /* disk change detected: AT, XT2, XT286, Convertible and PS/2 only */
byte disktype(byte drive); /* type of disk (0=default, A=1, etc.) */
/* Joystick prototypes */
boolean isgameport(void); /* is game port available */
char joysticksettings(void); /* get joystick switch settings */
unsigned joystickAx(void); /* read joystick input Ax */
unsigned joystickAy(void); /* read joystick input Ay */
unsigned joystickBx(void); /* read joystick input Bx */
unsigned joystickBy(void); /* read joystick input By */
/* EMS prototypes */
boolean isEMSavail(void); /* is EMS available */
unsigned char EMSGetStatus(void); /* get EMS status */
boolean EMMversion(byte *version); /* version or (on failure) error code */
boolean EMSpages(struct EMSrecord *ems); /* total/available amount of EMS */
boolean EMSinfo(struct EMSrecord *ems); /* EMS version and total/available pages */
int EMSwarmbootprep(void); /* Prep EMS hardware for warm boot: LIM EMS 4.0 */
/* Miscellaneous prototypes */
int Extendedtotal(void); /* total amount of Extended memory (in K) */
void reboot(boolean warmboot); /* reboot, warmboot vs. coldboot */
#endif /* IBM_HEADER */