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ngen: switched video/font RAM to use memory_array

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mahlemiut 2015-08-08 17:07:14 +12:00
parent 573351d770
commit 2967a9878e
1 changed files with 16 additions and 12 deletions
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28
src/mess/drivers/ngen.c
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@ -91,8 +91,6 @@ public:
m_pic(*this,"pic"), m_pic(*this,"pic"),
m_pit(*this,"pit"), m_pit(*this,"pit"),
m_disk_rom(*this,"disk"), m_disk_rom(*this,"disk"),
m_vram(*this,"vram"),
m_fontram(*this,"fontram"),
m_fdc(*this,"fdc"), m_fdc(*this,"fdc"),
m_fd0(*this,"fdc:0"), m_fd0(*this,"fdc:0"),
m_fdc_timer(*this,"fdc_timer"), m_fdc_timer(*this,"fdc_timer"),
@ -159,8 +157,8 @@ private:
required_device<pic8259_device> m_pic; required_device<pic8259_device> m_pic;
required_device<pit8254_device> m_pit; required_device<pit8254_device> m_pit;
optional_memory_region m_disk_rom; optional_memory_region m_disk_rom;
required_memory_region m_vram; memory_array m_vram;
required_memory_region m_fontram; memory_array m_fontram;
optional_device<wd2797_t> m_fdc; optional_device<wd2797_t> m_fdc;
optional_device<floppy_connector> m_fd0; optional_device<floppy_connector> m_fd0;
optional_device<pit8253_device> m_fdc_timer; optional_device<pit8253_device> m_fdc_timer;
@ -749,10 +747,10 @@ MC6845_UPDATE_ROW( ngen_state::crtc_update_row )
for(int x=0;x<bitmap.width();x+=9) for(int x=0;x<bitmap.width();x+=9)
{ {
UINT8 ch = m_vram->u16(addr++) & 0xff; UINT8 ch = m_vram.read16(addr++) & 0xff;
for(int z=0;z<9;z++) for(int z=0;z<9;z++)
{ {
if(BIT(m_fontram->u16(ch*16+ra),8-z)) if(BIT(m_fontram.read16(ch*16+ra),8-z))
bitmap.pix32(y,x+z) = rgb_t(0,0xff,0); bitmap.pix32(y,x+z) = rgb_t(0,0xff,0);
else else
bitmap.pix32(y,x+z) = rgb_t(0,0,0); bitmap.pix32(y,x+z) = rgb_t(0,0,0);
@ -832,7 +830,13 @@ WRITE16_MEMBER( ngen_state::b38_crtc_w )
void ngen_state::machine_start() void ngen_state::machine_start()
{ {
memory_share* vidshare = memshare("vram");
memory_share* fontshare = memshare("fontram");
m_hd_buffer.allocate(1024*8); // 8kB buffer RAM for HD controller m_hd_buffer.allocate(1024*8); // 8kB buffer RAM for HD controller
if(vidshare == NULL || fontshare == NULL)
fatalerror("Error: VRAM not found");
m_vram.set(*vidshare,2);
m_fontram.set(*fontshare,2);
} }
void ngen_state::machine_reset() void ngen_state::machine_reset()
@ -848,8 +852,8 @@ void ngen_state::machine_reset()
// boot ROMs from modules are not mapped anywhere, instead, they have to send the code from the boot ROM via DMA // boot ROMs from modules are not mapped anywhere, instead, they have to send the code from the boot ROM via DMA
static ADDRESS_MAP_START( ngen_mem, AS_PROGRAM, 16, ngen_state ) static ADDRESS_MAP_START( ngen_mem, AS_PROGRAM, 16, ngen_state )
AM_RANGE(0x00000, 0xf7fff) AM_RAM AM_RANGE(0x00000, 0xf7fff) AM_RAM
AM_RANGE(0xf8000, 0xf9fff) AM_RAM AM_REGION("vram",0) AM_RANGE(0xf8000, 0xf9fff) AM_RAM AM_SHARE("vram")
AM_RANGE(0xfa000, 0xfbfff) AM_RAM AM_REGION("fontram",0) AM_RANGE(0xfa000, 0xfbfff) AM_RAM AM_SHARE("fontram")
AM_RANGE(0xfc000, 0xfcfff) AM_RAM AM_RANGE(0xfc000, 0xfcfff) AM_RAM
AM_RANGE(0xfe000, 0xfffff) AM_ROM AM_REGION("bios",0) AM_RANGE(0xfe000, 0xfffff) AM_ROM AM_REGION("bios",0)
ADDRESS_MAP_END ADDRESS_MAP_END
@ -870,8 +874,8 @@ ADDRESS_MAP_END
static ADDRESS_MAP_START( ngen386_mem, AS_PROGRAM, 32, ngen_state ) static ADDRESS_MAP_START( ngen386_mem, AS_PROGRAM, 32, ngen_state )
AM_RANGE(0x00000000, 0x000f7fff) AM_RAM AM_RANGE(0x00000000, 0x000f7fff) AM_RAM
AM_RANGE(0x000f8000, 0x000f9fff) AM_RAM AM_REGION("vram",0) AM_RANGE(0x000f8000, 0x000f9fff) AM_RAM AM_SHARE("vram")
AM_RANGE(0x000fa000, 0x000fbfff) AM_RAM AM_REGION("fontram",0) AM_RANGE(0x000fa000, 0x000fbfff) AM_RAM AM_SHARE("fontram")
AM_RANGE(0x000fc000, 0x000fcfff) AM_RAM AM_RANGE(0x000fc000, 0x000fcfff) AM_RAM
AM_RANGE(0x000fe000, 0x000fffff) AM_ROM AM_REGION("bios",0) AM_RANGE(0x000fe000, 0x000fffff) AM_ROM AM_REGION("bios",0)
AM_RANGE(0x00100000, 0x00ffffff) AM_RAM // some extra RAM AM_RANGE(0x00100000, 0x00ffffff) AM_RAM // some extra RAM
@ -880,8 +884,8 @@ ADDRESS_MAP_END
static ADDRESS_MAP_START( ngen386i_mem, AS_PROGRAM, 32, ngen_state ) static ADDRESS_MAP_START( ngen386i_mem, AS_PROGRAM, 32, ngen_state )
AM_RANGE(0x00000000, 0x000f7fff) AM_RAM AM_RANGE(0x00000000, 0x000f7fff) AM_RAM
AM_RANGE(0x000f8000, 0x000f9fff) AM_RAM AM_REGION("vram",0) AM_RANGE(0x000f8000, 0x000f9fff) AM_RAM AM_SHARE("vram")
AM_RANGE(0x000fa000, 0x000fbfff) AM_RAM AM_REGION("fontram",0) AM_RANGE(0x000fa000, 0x000fbfff) AM_RAM AM_SHARE("fontram")
AM_RANGE(0x000fc000, 0x000fffff) AM_ROM AM_REGION("bios",0) AM_RANGE(0x000fc000, 0x000fffff) AM_ROM AM_REGION("bios",0)
AM_RANGE(0x00100000, 0x00ffffff) AM_RAM // some extra RAM AM_RANGE(0x00100000, 0x00ffffff) AM_RAM // some extra RAM
AM_RANGE(0xffffc000, 0xffffffff) AM_ROM AM_REGION("bios",0) AM_RANGE(0xffffc000, 0xffffffff) AM_ROM AM_REGION("bios",0)