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ef9340: internal chr rom was bitswapped, also mark it bad dump

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This commit is contained in:
hap 2020-08-16 21:01:08 +02:00
parent 9006bf69c1
commit c650b5ec27
1 changed files with 5 additions and 5 deletions
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10
src/devices/video/ef9340_1.cpp
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@ -35,7 +35,7 @@ ef9340_1_device::ef9340_1_device(const machine_config &mconfig, const char *tag,
ROM_START( ef9340_1 )
ROM_REGION( 0xA00, "ef9340_1", 0 )
ROM_LOAD( "charset_ef9340_1.rom", 0x0000, 0x0A00, CRC(d557a7bf) SHA1(d100b0f6a0d5a2d540844bf362788659ed9a6eb4) )
ROM_LOAD( "charset_ef9340_1.rom", 0x0000, 0x0a00, BAD_DUMP CRC(8de85988) SHA1(f8e3892234da6626eb4302e171179ada5a51fca8) ) // taken from datasheet
ROM_END
@ -230,7 +230,7 @@ void ef9340_1_device::ef9341_write( uint8_t command, uint8_t b, uint8_t data )
if ( b >= 0xa0 )
{
m_ef934x_ext_char_ram[ ( ( a & 0x80 ) << 3 ) | external_chargen_address( b, slice ) ] = bitswap<8>(m_ef9341.TA,0,1,2,3,4,5,6,7);
m_ef934x_ext_char_ram[ ( ( a & 0x80 ) << 3 ) | external_chargen_address( b, slice ) ] = m_ef9341.TA;
}
// Increment slice number
@ -297,7 +297,7 @@ uint8_t ef9340_1_device::ef9341_read( uint8_t command, uint8_t b )
if ( b >= 0xa0 )
{
m_ef9341.TA = bitswap<8>(m_ef934x_ext_char_ram[ ( ( a & 0x80 ) << 3 ) | external_chargen_address( b, slice ) ],0,1,2,3,4,5,6,7);
m_ef9341.TA = m_ef934x_ext_char_ram[ ( ( a & 0x80 ) << 3 ) | external_chargen_address( b, slice ) ];
m_ef9341.TB = 0;
}
@ -450,9 +450,9 @@ void ef9340_1_device::ef9340_scanline(int vpos)
for ( int i = 0; i < 8; i++ )
{
uint16_t d = blank ? 0 : (char_data & 0x80) ? fg : bg;
uint16_t d = blank ? 0 : (char_data & 1) ? fg : bg;
m_tmp_bitmap.pix16(m_offset_y + vpos, m_offset_x + x*8 + i ) = d | 8;
char_data <<= 1;
char_data >>= 1;
}
}
}