// YX structure is set with y,x,string,length, and start position of text
// Fix from Klaus, dr Tiger
static GOOD_OR_BAD OW_Hprintyx(struct yx * YX, struct parsedname * pn)
{
BYTE translated_data[2 + 2 * (YX->length-YX->text_start)];
size_t original_index ;
size_t translate_index = 0;
int Valid_YX = ( YX->x <= LCD_LINE_END && YX->y <= LCD_LAST_ROW && YX->x >= LCD_LINE_START && YX->y >= LCD_FIRST_ROW ) ;
int Continue_YX = ( YX->y == LCD_SAME_LOCATION_VALUE || YX->x == LCD_SAME_LOCATION_VALUE ) ;
if ( Valid_YX ) {
BYTE chip_command ;
switch (YX->y) { // row value
case 1:
chip_command = LCD_COMMAND_SET_DDRAM_ADDRESS;
break;
case 2:
chip_command = LCD_COMMAND_SET_DDRAM_ADDRESS + LCD_SECOND_ROW_ADDRESS;
break;
case 3:
chip_command = LCD_COMMAND_SET_DDRAM_ADDRESS + LCD_LINE_END;
break;
case 4:
chip_command = (LCD_COMMAND_SET_DDRAM_ADDRESS + LCD_SECOND_ROW_ADDRESS) + LCD_LINE_END;
break;
default:
LEVEL_DEBUG("Unrecognized row %d",YX->y) ;
return gbBAD ;
}
chip_command += YX->x - 1; // add column (0 index)
// Initial location (2 half bytes)
translated_data[translate_index++] = NIBBLE_ONE(chip_command);
translated_data[translate_index++] = NIBBLE_TWO(chip_command);
} else if ( !Continue_YX ) {
LEVEL_DEBUG("Bad screen coordinates y=%d x=%d",YX->y,YX->x);
return gbBAD;
}
//printf("Hscreen test<%*s>\n",(int)size,buf) ;
for ( original_index = YX->text_start ; original_index < YX->length ; ++original_index ) {
if (YX->string[original_index]) {
translated_data[translate_index++] = NIBBLE_ONE(YX->string[original_index]) | LCD_DATA_FLAG;
translated_data[translate_index++] = NIBBLE_TWO(YX->string[original_index]) | LCD_DATA_FLAG;
} else { //null byte becomes space
translated_data[translate_index++] = NIBBLE_ONE(' ') | LCD_DATA_FLAG;
translated_data[translate_index++] = NIBBLE_TWO(' ') | LCD_DATA_FLAG;
}
}
LEVEL_DEBUG("Print the message");
return OW_w_pios(translated_data, translate_index, pn) ;
}
/* Redefine a character */
static GOOD_OR_BAD OW_redefchar(ASCII * pattern, struct parsedname * pn)
{
int i ;
int j = 0;
int char_num = pn->extension * 8 + 0x40 ;
int datalength = 2 * (LCD_REDEFCHAR_LENGTH+1) ; // nibbles for data plus index
BYTE data[ datalength ] ;
RETURN_BAD_IF_BAD( OW_Hinit(pn) ) ;
i = j = 0;
// Start with char num
data[j++] = (char_num & 0xF0);
data[j++] = (char_num << 4) & 0xF0;
// Add pattern
for ( i = 0 ; i < LCD_REDEFCHAR_LENGTH ; ++i ) {
data[j++] = NIBBLE_ONE(pattern[i]) | LCD_DATA_FLAG;
data[j++] = NIBBLE_TWO(pattern[i]) | LCD_DATA_FLAG;
}
return OW_w_pios(data, datalength, pn) ;
}
