Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-21 07:52:35 +03:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

Main screen turn on (nw)

Browse Source
This commit is contained in:
Olivier Galibert 2020-02-17 18:37:25 +01:00
parent 9e6d53bceb
commit 7ffd5ee016
1 changed files with 111 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

123
src/mame/drivers/xavix2.cpp
View File

@ -25,7 +25,6 @@ public:
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_screen(*this, "screen")
, m_palette(*this, "palette")
{ }
void xavix2(machine_config &config);
@ -38,16 +37,19 @@ private:
required_device<xavix2_device> m_maincpu;
required_device<screen_device> m_screen;
required_device<palette_device> m_palette;
u32 m_dma_src;
u16 m_dma_dst;
u16 m_dma_count;
emu_timer *m_dma_timer;
u16 m_port0_ddr, m_port0_data;
u16 m_gpu_adr, m_gpu_descsize_adr, m_gpu_descdata_adr;
u32 m_int_active;
u32 m_sd[0x400][0x800];
std::string m_debug_string;
void irq_raise(u32 level);
@ -75,12 +77,17 @@ private:
u8 debug_port_r();
u8 debug_port_status_r();
void port0_ddr_w(u16 data);
u16 port0_ddr_r();
void port0_w(u16 data);
u16 port0_r();
void crtc_w(offs_t reg, u16 data);
virtual void machine_start() override;
virtual void machine_reset() override;
uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
void mem(address_map &map);
};
@ -143,7 +150,69 @@ void xavix2_state::gpu_count_w(u16 data)
u32 idx = (command >> 58) & 0x3f;
u32 descsize = m_maincpu->space(AS_PROGRAM).read_dword(m_gpu_descsize_adr + 4*idx);
u16 descdata = m_maincpu->space(AS_PROGRAM).read_word(m_gpu_descdata_adr + 2*idx);
logerror("gpu - data %06x size %08x w=%x ?=%x h=%x ?=%x bpp=%x ?=%x\n", (descdata << 14) | ((command >> 43) & 0x3fe0), descsize, 1+(descsize & 0x3f), (descsize >> 6) & 3, 1 + ((descsize >> 8) & 0x3f), (descsize >> 10) & 0x3ff, 1 + ((descsize >> 24) & 7), descsize >> 27);
u32 sadr = (descdata << 14) | ((command >> 43) & 0x3fe0);
u32 x = (command >> 0) & 0x7ff;
u32 y = (command >> 11) & 0x3ff;
u32 sx = 1+(descsize & 0xff);
u32 sy = 1 + ((descsize >> 8) & 0xff);
u32 bpp = 1 + ((descsize >> 24) & 7);
logerror("gpu - data %06x size %08x w=%x h=%x ?=%x bpp=%x ?=%x\n", sadr, descsize, sx, sy, (descsize >> 16) & 0xff, bpp, descsize >> 27);
u32 stride = sx;
if(x+sx > 0x800)
sx = 0x800 - x;
if(y+sy > 0x400)
sy = 0x400 - y;
switch(bpp) {
case 2: {
stride = 8*((sx+31)/32);
for(u32 yy=0; yy<sy; yy++) {
u32 cadr = sadr;
for(u32 xx=0; xx<sx; xx += 32) {
u64 v = m_maincpu->space(AS_PROGRAM).read_qword(cadr);
u32 xxl = sx - xx;
if(xxl > 32)
xxl = 32;
for(u32 xxx=0; xxx<xxl; xxx++) {
u32 c = (v >> (2*xxx)) & 3;
m_sd[y+yy][x+xx+xxx] = 0xff000000 | (0x555555 * c);
}
cadr += 8;
}
sadr += stride;
}
break;
}
case 3: {
stride = 8*((sx+20)/21);
for(u32 yy=0; yy<sy; yy++) {
u32 cadr = sadr;
for(u32 xx=0; xx<sx; xx += 21) {
u64 v = m_maincpu->space(AS_PROGRAM).read_qword(cadr);
u32 xxl = sx - xx;
if(xxl > 21)
xxl = 21;
for(u32 xxx=0; xxx<xxl; xxx++) {
u32 c = (v >> (3*xxx)) & 7;
m_sd[y+yy][x+xx+xxx] = 0xff000000 | (0x242424 * c);
}
cadr += 8;
}
sadr += stride;
}
break;
}
default:
for(u32 yy=0; yy<sy; yy++)
for(u32 xx=0; xx<sx; xx++)
m_sd[yy+y][xx+x] = 0x00000000;
break;
}
}
}
@ -208,6 +277,8 @@ TIMER_CALLBACK_MEMBER(xavix2_state::dma_end)
INTERRUPT_GEN_MEMBER(xavix2_state::vblank_irq)
{
logerror("clear\n");
memset(m_sd, 0, sizeof(m_sd));
irq_raise(IRQ_TIMER);
}
@ -234,6 +305,28 @@ u8 xavix2_state::debug_port_status_r()
return 1<<1;
}
void xavix2_state::port0_ddr_w(u16 data)
{
m_port0_ddr = data;
logerror("port0 ddr %04x\n", data);
}
u16 xavix2_state::port0_ddr_r()
{
return m_port0_ddr;
}
void xavix2_state::port0_w(u16 data)
{
m_port0_data = data;
logerror("port0 %04x\n", data);
}
u16 xavix2_state::port0_r()
{
return m_port0_data;
}
/*
NTSC? (63.55us)
[:] crtc[0] = 50034 (c372)
@ -285,15 +378,16 @@ void xavix2_state::mem(address_map &map)
map(0xffffe00c, 0xffffe00c).w(FUNC(xavix2_state::dma_control_w));
map(0xffffe010, 0xffffe010).rw(FUNC(xavix2_state::dma_status_r), FUNC(xavix2_state::dma_status_w));
map(0xffffe204, 0xffffe205).rw(FUNC(xavix2_state::port0_ddr_r), FUNC(xavix2_state::port0_ddr_w));
map(0xffffe20a, 0xffffe20b).rw(FUNC(xavix2_state::port0_r), FUNC(xavix2_state::port0_w));
map(0xffffe238, 0xffffe238).rw(FUNC(xavix2_state::debug_port_r), FUNC(xavix2_state::debug_port_w));
map(0xffffe239, 0xffffe239).r(FUNC(xavix2_state::debug_port_status_r));
map(0xffffe604, 0xffffe605).w(FUNC(xavix2_state::gpu_adr_w));
map(0xffffe606, 0xffffe607).w(FUNC(xavix2_state::gpu_count_w));
map(0xffffe608, 0xffffe609).w(FUNC(xavix2_state::gpu_descsize_w));
map(0xffffe622, 0xffffe623).w(FUNC(xavix2_state::gpu_descdata_w));
map(0xffffe60a, 0xffffe60a).lr8(NAME([]() { return 0x40; })); // pal/ntsc
map(0xffffe622, 0xffffe623).w(FUNC(xavix2_state::gpu_descdata_w));
map(0xffffe630, 0xffffe631).lr16(NAME([]() { return 0x210; }));
map(0xffffe632, 0xffffe633).lr16(NAME([]() { return 0x210; }));
map(0xffffe634, 0xffffe64b).w(FUNC(xavix2_state::crtc_w));
@ -302,8 +396,16 @@ void xavix2_state::mem(address_map &map)
map(0xfffffc04, 0xfffffc05).w(FUNC(xavix2_state::irq_clear_w));
}
uint32_t xavix2_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
uint32_t xavix2_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
logerror("draw\n");
constexpr int dx = 0x400 - 320;
constexpr int dy = 0x200 - 200;
for(int y=0; y < 400; y++)
for(int x=0; x<640; x++)
bitmap.pix(y, x) = m_sd[y+dy][x+dx];
return 0;
}
@ -334,11 +436,8 @@ void xavix2_state::xavix2(machine_config &config)
m_screen->set_refresh_hz(60);
m_screen->set_vblank_time(ATTOSECONDS_IN_USEC(2500));
m_screen->set_screen_update(FUNC(xavix2_state::screen_update));
m_screen->set_size(32*8, 32*8);
m_screen->set_visarea(0*8, 32*8-1, 2*8, 30*8-1);
m_screen->set_palette(m_palette);
PALETTE(config, m_palette).set_format(palette_device::xRGB_555, 256);
m_screen->set_size(640, 400);
m_screen->set_visarea(0, 639, 0, 399);
/* sound hardware */
SPEAKER(config, "lspeaker").front_left();