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91 lines
2.2 KiB
91 lines
2.2 KiB
#
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# Copyright (c) 2020 Brian Callahan <bcallah@openbsd.org>
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#
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# Permission to use, copy, modify, and distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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#
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# Cowgol standard library
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# Uncomment these if you'd like to abstract the includes away.
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include "cowgol.coh";
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include "file.coh";
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include "strings.coh";
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include "malloc.coh";
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# Print a properly formatted 8-bit hex number to a file.
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sub FCBPutHex8(fcb: [FCB], number: uint8) is
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var i: uint8 := 0;
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var nibble: uint8;
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while i < 2 loop
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nibble := number >> 4;
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if nibble < 10 then
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nibble := nibble + '0';
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else
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nibble := nibble + ('A' - 10);
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end if;
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FCBPutChar(fcb, nibble);
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number := number << 4;
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i := i + 1;
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end loop;
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end sub;
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# Print a properly formatted 16-bit hex number to a file.
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sub FCBPutHex16(fcb: [FCB], number: uint16) is
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FCBPutHex8(fcb, ((number >> 8) as uint8));
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FCBPutHex8(fcb, (number as uint8));
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end sub;
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# Print a properly formatted 32-bit hex number to a file.
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sub FCBPutHex32(fcb: [FCB], number: uint32) is
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FCBPutHex16(fcb, ((number >> 16) as uint16));
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FCBPutHex16(fcb, (number as uint16));
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end sub;
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# Print a signed 32-bit integer to the console.
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sub print_d32(value: int32) is
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var buffer: uint8[12];
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var pe := IToA(value, 10, &buffer[0]);
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print(&buffer[0]);
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end sub;
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# Read in a string.
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sub GetString(): (s: [uint8]) is
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var temp: uint8[256];
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var c: uint8;
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var i: uint8 := 0;
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while i < 255 loop
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c := get_char();
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if c == 10 or c == 13 then
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break;
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end if;
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temp[i] := c;
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i := i + 1;
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end loop;
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temp[i] := 0;
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if i == 0 then
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s := (0 as [uint8]);
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return;
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end if;
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s := Alloc(((i + 1) as intptr));
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CopyString(&temp[0], s);
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end sub;
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