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Fix validity check

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This commit is contained in:
Angelo Salese 2012-08-25 12:49:58 +00:00
parent 8f71a37c56
commit f3d21ad0c5
2 changed files with 14 additions and 1 deletions
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8
src/emu/video/m50458.c
View File

@ -18,6 +18,7 @@ const device_type M50458 = &device_creator<m50458_device>;
static ADDRESS_MAP_START( m50458_vram, AS_0, 16, m50458_device )
AM_RANGE(0x0000, 0x023f) AM_RAM // vram
AM_RANGE(0x0240, 0x0241) AM_WRITE(vreg_120_w)
AM_RANGE(0x024e, 0x024f) AM_WRITE(vreg_127_w)
ADDRESS_MAP_END
@ -27,6 +28,10 @@ ROM_START( m50458 )
ROM_LOAD("m50458_char.bin", 0x0000, 0x1200, BAD_DUMP CRC(011cc342) SHA1(d5b9f32d6e251b4b25945267d7c68c099bd83e96) )
ROM_END
WRITE16_MEMBER( m50458_device::vreg_120_w)
{
}
WRITE16_MEMBER( m50458_device::vreg_127_w)
{
if(data & 0x20) // RAMERS, display RAM is erased
@ -93,7 +98,7 @@ m50458_device::m50458_device(const machine_config &mconfig, const char *tag, dev
device_memory_interface(mconfig, *this),
m_space_config("videoram", ENDIANNESS_LITTLE, 16, 16, 0, NULL, *ADDRESS_MAP_NAME(m50458_vram))
{
m_shortname = "m50458";
}
@ -173,6 +178,7 @@ WRITE_LINE_MEMBER( m50458_device::set_clock_line )
m_osd_state = OSD_SET_DATA;
break;
case OSD_SET_DATA:
//if(m_osd_addr >= 0x120)
//printf("%04x %04x\n",m_osd_addr,m_current_cmd);
write_word(m_osd_addr,m_current_cmd);
m_osd_addr++;

7
src/emu/video/m50458.h
View File

@ -29,6 +29,10 @@ typedef enum
OSD_SET_DATA
} m50458_state_t;
typedef struct
{
UINT8 r,g,b;
} m50458_bg_t;
// ======================> m50458_device
@ -43,6 +47,7 @@ public:
WRITE_LINE_MEMBER( write_bit );
WRITE_LINE_MEMBER( set_cs_line );
WRITE_LINE_MEMBER( set_clock_line );
DECLARE_WRITE16_MEMBER(vreg_120_w);
DECLARE_WRITE16_MEMBER(vreg_127_w);
UINT32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
@ -63,6 +68,8 @@ protected:
UINT16 m_osd_addr;
m50458_state_t m_osd_state;
m50458_bg_t m_m50458_bg;
private:
inline UINT16 read_word(offs_t address);
inline void write_word(offs_t address, UINT16 data);