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/* Description: The aLCDx.tea Library update for use with the DS-LCDD1
and DS-LCDD2 LCD’s. This file should be saved in the Brainstem/aSystem
file.
Created: 16/09/02
Written by: Acroname Inc (Mark Whitney)
TR011
*/#ifndef _aLCDx_T_
#define _aLCDx_T_
/*
* ALCD_ADDR must be defined in the user program
* before this file is included!!!
*
* There are no routines for binary formatting
* because the result would be too big for popcmd.
*/void aLCDx_Byte(unsigned char a)
{
asm
{
pushlb ALCD_ADDR
pushlb 2 // will be sending two bytes
pushlb 0 // select register R0 for display character
pushsb 6 // retrieve the data byte (it's 6 bytes lower down in stack)
pushlb 4 // set size of packet to send
popcmd
}
}
void aLCDx_Cmd(unsigned char a)
{
asm
{
pushlb ALCD_ADDR
pushlb 2 // will be sending two bytes
pushlb 1 // select register R1 for command character
pushsb 6 // retrieve the data byte (it's 6 bytes lower down in stack)
pushlb 4 // set size of packet to send
popcmd
}
}/* format an integer into decimal string
* and send it out to the LCD display
*/
void aLCDx_IntDec(int a)
{
asm
{
pushlb ALCD_ADDR
pushlb 0 // place-holder for data size byte
pushlb 0 // select register R0 for display characters
pushss 7 // push the input short
fmtsd // convert the short (push ASCII decimal digits and a size byte)
pushsb 1 // save a copy of the size byte
pushlb 1 // add 1 to it (this is data size)
addb
pushsb 1 // save another copy of the size byte
pushlb 2 // add 2 to it (this is offset to place-holder)
addb
popbsx // write data size byte to place-holder
pushlb 3 // command size is 3 + size of string
addb
popcmd // send the command to write number to LCD
}
}
/* format an integer into unsigned decimal string
* and send it out to the LCD display
*/
void aLCDx_IntUdec(int a)
{
asm
{
pushlb ALCD_ADDR
pushlb 0
pushlb 0
pushss 7
fmtsu
pushsb 1
pushlb 1
addb
pushsb 1
pushlb 2
addb
popbsx
pushlb 3
addb
popcmd
}
}
/* format an integer into hexadecimal string
* and send it out to the LCD display
*/
void aLCDx_IntHex(int a)
{
asm
{
pushlb ALCD_ADDR
pushlb 0
pushlb 0
pushss 7
fmtsh
pushsb 1
pushlb 1
addb
pushsb 1
pushlb 2
addb
popbsx
pushlb 3
addb
popcmd
}
}
/* format a char into decimal string
* and send it out to the LCD display
*/
void aLCDx_CharDec(char a)
{
asm
{
pushlb ALCD_ADDR
pushlb 0 // place-holder for data size byte
pushlb 0 // select register R0 for display characters
pushsb 6 // push the input byte
fmtbd // convert the byte (push ASCII decimal digits and a size byte)
pushsb 1 // save a copy of the size byte
pushlb 1 // add 1 to it (this is data size)
addb
pushsb 1 // save another copy of the size byte
pushlb 2 // add 2 to it (this is offset to place-holder)
addb
popbsx // write data size byte to place-holder
pushlb 3 // command size is 3 + size of string
addb
popcmd // send the command to write number to LCD
}
}
/* format a char into unsigned decimal string
* and send it out to the LCD display
*/
void aLCDx_CharUdec(char a)
{
asm
{
pushlb ALCD_ADDR
pushlb 0
pushlb 0
pushsb 6
fmtbu
pushsb 1
pushlb 1
addb
pushsb 1
pushlb 2
addb
popbsx
pushlb 3
addb
popcmd
}
}
/* format a char into hexadecimal string
* and send it out to the LCD display
*/
void aLCDx_CharHex(char a)
{
asm
{
pushlb ALCD_ADDR
pushlb 0
pushlb 0
pushsb 6
fmtbh
pushsb 1
pushlb 1
addb
pushsb 1
pushlb 2
addb
popbsx
pushlb 3
addb
popcmd
}
}
/* send a string out to the LCD display */
/* string is characters followed by a size byte */
void aLCDx_String(string s)
{
asm {
pushsb 3 // copy size
next:
brz end // done when no more char left
pushlb ALCD_ADDR
pushlb 2 // size of IIC data
pushlb 0 // R0 to output char
pushsb 4 // get size
pushlb 7 // add offset to string tail
addb // get index to next char
pushsbx // push next char
pushlb 4 // push size of IIC packet
popcmd // send packet
decb 1 // we've sent one byte
goto next
end:
popb // get rid of size byte
}
}
#endif /* _aLCDx_T_ */
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