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tso.c
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tso.c
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/*-----------------------------------------------------------------------------
| Copyright (c) 2012-2013, Tommy Sprinkle ([email protected])
|
| All rights reserved. Redistribution and use in source and binary forms,
| with or without modification, are permitted provided that the following
| conditions are met:
|
| * Redistributions of source code must retain the above copyright notice,
| this list of conditions and the following disclaimer.
| * Redistributions in binary form must reproduce the above copyright
| notice, this list of conditions and the following disclaimer in the
| documentation and/or other materials provided with the distribution.
| * Neither the name of the author nor the names of its contributors may
| be used toendorse or promote products derived from this software
| without specific prior written permission.
|
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
| "AS IS" AND ANYEXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
| LIMITED TO, THE IMPLIED WARRANTIESOF MERCHANTABILITY AND FITNESS
| FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENTSHALL THE
| COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
| INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
| (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
| SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
| HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
| STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
| ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
| OF THE POSSIBILITY OF SUCH DAMAGE.
-----------------------------------------------------------------------------*/
//---------------------------------------------------------------
// TSO - C Routine Interface
//
// Tommy Sprinkle - [email protected]
// December, 2012
//
//---------------------------------------------------------------
#include <stdlib.h>
#include "svc.h"
#include "tso.h"
//----------------------------------------
// Basic TPUT
//----------------------------------------
void tput(char * data, int length)
{
struct SVCREGS regs;
regs.R0 = length;
regs.R1 = (unsigned int) data & 0x00FFFFFF;
EXSVC(93, ®s);
}
//----------------------------------------
// Basic TGET
//----------------------------------------
int tget(char * data, int length)
{
struct SVCREGS regs;
regs.R0 = length;
regs.R1 = ((unsigned int) data & 0x00FFFFFF ) | 0x80000000;
EXSVC(93,®s);
return regs.R1;
}
//----------------------------------------
// STFSMODE - 0 = off, 1 = on
//----------------------------------------
void stfsmode(int action)
{
struct SVCREGS regs;
regs.R0 = 0x12000000;
if(action)
regs.R1 = 0xC0000000;
else
regs.R1 = 0;
EXSVC(94, ®s);
}
//----------------------------------------
// STTMPMD
//----------------------------------------
void sttmpmd(int action)
{
struct SVCREGS regs;
regs.R0 = 0x14000000;
if(action)
regs.R1 = 0x80000000;
else
regs.R1 = 0;
EXSVC(94, ®s);
}
//----------------------------------------
// STLINENO
//----------------------------------------
void stlineno(int line)
{
struct SVCREGS regs;
regs.R0 = 0x13000000;
regs.R1 = line;
EXSVC(94, ®s);
}
//----------------------------------------
// TPUT - Full Screen Write
//----------------------------------------
int tput_fullscr(char * data, int len)
{
struct SVCREGS regs;
regs.R0 = len;
regs.R1 = ((unsigned int) data & 0x00FFFFFF) | 0x03000000;
EXSVC(93, ®s);
return regs.R15;
}
//----------------------------------------
// TGET ASIS
//----------------------------------------
int tget_asis(char * data, int len)
{
struct SVCREGS regs;
regs.R0 = len;
regs.R1 = ((unsigned int) data & 0x00FFFFFF) | 0x81000000;
EXSVC(93, ®s);
return regs.R1;
}
//----------------------------------------
// Convert a 3270 Buffer Address into an offset
//----------------------------------------
int getBufOffset(int bufAddr)
{
int offset;
offset = (bufAddr & 0x3f) | ((bufAddr & 0x3f00) >> 2);
return offset;
}
//----------------------------------------
// Translate a byte into a 3270 compatable byte
//----------------------------------------
int xlate3270(int byte)
{
static char tbl3270[] =
{ 0x40, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
0xC8, 0xC9, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F,
0x50, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7,
0xD8, 0xD9, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F,
0x60, 0x61, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
0xE8, 0xE9, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
0xF8, 0xF9, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F
};
if(byte > 63 || byte < 0)
return 0;
return tbl3270[byte];
}
//----------------------------------------
// Convert Row, Column into a 3270 Buffer Address
//----------------------------------------
int getBufAddr(int row, int col)
{
int offset;
int hof;
int lof;
if(row < 1 || row > 24 || col < 1 || col > 80)
return 0;
offset = ((row - 1) *80) + (col -1);
hof = xlate3270( (offset >> 6) & 0x3F );
lof = xlate3270( offset & 0x3F );
return (hof << 8) | lof;
}
//----------------------------------------
// Translate a buffer offset into a
// 3270 Buffer Address
//----------------------------------------
int offToBuf(int offset)
{
int hof;
int lof;
hof = xlate3270( (offset >> 6) & 0x3F );
lof = xlate3270( offset & 0x3F );
return (hof << 8) | lof;
}
//----------------------------------------
// Convert a Row,Column to an offset
//----------------------------------------
int rcToOff(int row, int col)
{
if(row < 1 || row > 24 || col < 1 || col > 80)
return 0;
return ((row - 1) *80) + (col -1);
}