(*
BSD 2-Clause License
Copyright (c) 2019-2020, Anton Krotov
All rights reserved.
*)
MODULE HOST;
IMPORT SYSTEM, API, RTL;
CONST
slash* = "/";
OS* = "LINUX";
bit_depth* = RTL.bit_depth;
maxint* = RTL.maxint;
minint* = RTL.minint;
VAR
argc: INTEGER;
eol*: ARRAY 2 OF CHAR;
maxreal*: REAL;
PROCEDURE ExitProcess* (code: INTEGER);
BEGIN
API.exit(code)
END ExitProcess;
PROCEDURE GetArg* (n: INTEGER; VAR s: ARRAY OF CHAR);
VAR
i, len, ptr: INTEGER;
c: CHAR;
BEGIN
i := 0;
len := LEN(s) - 1;
IF (n < argc) & (len > 0) THEN
SYSTEM.GET(API.MainParam + (n + 1) * SYSTEM.SIZE(INTEGER), ptr);
REPEAT
SYSTEM.GET(ptr, c);
s[i] := c;
INC(i);
INC(ptr)
UNTIL (c = 0X) OR (i = len)
END;
s[i] := 0X
END GetArg;
PROCEDURE GetCurrentDirectory* (VAR path: ARRAY OF CHAR);
VAR
n: INTEGER;
BEGIN
GetArg(0, path);
n := LENGTH(path) - 1;
WHILE path[n] # slash DO
DEC(n)
END;
path[n + 1] := 0X
END GetCurrentDirectory;
PROCEDURE FileRead* (F: INTEGER; VAR Buffer: ARRAY OF CHAR; bytes: INTEGER): INTEGER;
VAR
res: INTEGER;
BEGIN
res := API.fread(SYSTEM.ADR(Buffer[0]), 1, bytes, F);
IF res <= 0 THEN
res := -1
END
RETURN res
END FileRead;
PROCEDURE FileWrite* (F: INTEGER; Buffer: ARRAY OF BYTE; bytes: INTEGER): INTEGER;
VAR
res: INTEGER;
BEGIN
res := API.fwrite(SYSTEM.ADR(Buffer[0]), 1, bytes, F);
IF res <= 0 THEN
res := -1
END
RETURN res
END FileWrite;
PROCEDURE FileCreate* (FName: ARRAY OF CHAR): INTEGER;
RETURN API.fopen(SYSTEM.ADR(FName[0]), SYSTEM.SADR("wb"))
END FileCreate;
PROCEDURE FileClose* (File: INTEGER);
BEGIN
File := API.fclose(File)
END FileClose;
PROCEDURE FileOpen* (FName: ARRAY OF CHAR): INTEGER;
RETURN API.fopen(SYSTEM.ADR(FName[0]), SYSTEM.SADR("rb"))
END FileOpen;
PROCEDURE OutChar* (c: CHAR);
BEGIN
API.putc(c)
END OutChar;
PROCEDURE GetTickCount* (): INTEGER;
VAR
tp: API.TP;
res: INTEGER;
BEGIN
IF API.clock_gettime(0, tp) = 0 THEN
res := tp[0] * 100 + tp[1] DIV 10000000
ELSE
res := 0
END
RETURN res
END GetTickCount;
PROCEDURE isRelative* (path: ARRAY OF CHAR): BOOLEAN;
RETURN path[0] # slash
END isRelative;
PROCEDURE now* (VAR year, month, day, hour, min, sec: INTEGER);
END now;
PROCEDURE UnixTime* (): INTEGER;
RETURN API.time(0)
END UnixTime;
PROCEDURE d2s* (x: REAL): INTEGER;
VAR
h, l, s, e: INTEGER;
BEGIN
SYSTEM.GET(SYSTEM.ADR(x), l);
SYSTEM.GET(SYSTEM.ADR(x) + 4, h);
s := ASR(h, 31) MOD 2;
e := (h DIV 100000H) MOD 2048;
IF e <= 896 THEN
h := (h MOD 100000H) * 8 + (l DIV 20000000H) MOD 8 + 800000H;
REPEAT
h := h DIV 2;
INC(e)
UNTIL e = 897;
e := 896;
l := (h MOD 8) * 20000000H;
h := h DIV 8
ELSIF (1151 <= e) & (e < 2047) THEN
e := 1151;
h := 0;
l := 0
ELSIF e = 2047 THEN
e := 1151;
IF (h MOD 100000H # 0) OR (l # 0) THEN
h := 80000H;
l := 0
END
END;
DEC(e, 896)
RETURN LSL(s, 31) + LSL(e, 23) + (h MOD 100000H) * 8 + (l DIV 20000000H) MOD 8
END d2s;
PROCEDURE splitf* (x: REAL; VAR a, b: INTEGER): INTEGER;
VAR
res: INTEGER;
BEGIN
a := 0;
b := 0;
SYSTEM.MOVE(SYSTEM.ADR(x), SYSTEM.ADR(a), 4);
SYSTEM.MOVE(SYSTEM.ADR(x) + 4, SYSTEM.ADR(b), 4);
SYSTEM.GET(SYSTEM.ADR(x), res)
RETURN res
END splitf;
BEGIN
eol := 0AX;
maxreal := 1.9;
PACK(maxreal, 1023);
SYSTEM.GET(API.MainParam, argc)
END HOST.