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invqix.c: Minor doc update & minor whitespace clean up - NW

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This commit is contained in:
Brian Troha 2012-08-09 02:27:38 +00:00
parent f7955f3188
commit 3ae8341d9c
1 changed files with 58 additions and 55 deletions
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113
src/mame/drivers/invqix.c
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@ -63,10 +63,13 @@ The other has the secondary label 351100210 with a serial number labeled:
S/N: SIURxxxx (xxxx=number of PCB) S/N: SIURxxxx (xxxx=number of PCB)
SPACE INVADERS U/R SPACE INVADERS U/R
Both boards have the same program code and either can be set to Coin or Free Play
as well as Up Right, Cocktail or Flip Screen from the service menu.
Memory map: Memory map:
000000-1fffff: program ROM 000000-1fffff: program ROM
200000-20ffff: Work RAM 200000-20ffff: Work RAM
400000-400003: OKIM9810 400000-400003: OKI M9810
600000-61ffff: VRAM 600000-61ffff: VRAM
620000-620005: video registers 620000-620005: video registers
@ -74,7 +77,7 @@ The other has the secondary label 351100210 with a serial number labeled:
port 1: player 2 inputs port 1: player 2 inputs
port 2 bit 3: must be "1" to avoid SERVICE ERROR port 2 bit 3: must be "1" to avoid SERVICE ERROR
port 2 bit 6: FPGA chip select port 2 bit 6: FPGA chip select
port 2 bit 7: FPGA clock in port 2 bit 7: FPGA clock in
port 3 bit 0: FPGA status (1 for ready) port 3 bit 0: FPGA status (1 for ready)
@ -128,7 +131,7 @@ public:
DECLARE_READ8_MEMBER(porta_r); DECLARE_READ8_MEMBER(porta_r);
DECLARE_READ8_MEMBER(portg_r); DECLARE_READ8_MEMBER(portg_r);
DECLARE_WRITE16_MEMBER(vctl_w); DECLARE_WRITE16_MEMBER(vctl_w);
protected: protected:
// devices // devices
@ -140,7 +143,7 @@ protected:
virtual void video_start(); virtual void video_start();
private: private:
UINT16 m_vctl; // 0000 for normal, 0001 for flip, 0100 when going to change (blank?) UINT16 m_vctl; // 0000 for normal, 0001 for flip, 0100 when going to change (blank?)
}; };
@ -152,60 +155,60 @@ UINT32 invqix_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap,
{ {
int x,y; int x,y;
// this means freeze or blank or something // this means freeze or blank or something
if (m_vctl == 0x100) if (m_vctl == 0x100)
{ {
return 0; return 0;
} }
if (m_vctl == 0x0000) if (m_vctl == 0x0000)
{ {
for(y=0;y<256;y++) for(y=0;y<256;y++)
{ {
for(x=0;x<256;x++) for(x=0;x<256;x++)
{ {
UINT8 r,g,b; UINT8 r,g,b;
int pen_data; int pen_data;
pen_data = (m_vram[(x+y*256)]); pen_data = (m_vram[(x+y*256)]);
b = (pen_data & 0x001f); b = (pen_data & 0x001f);
g = (pen_data & 0x03e0) >> 5; g = (pen_data & 0x03e0) >> 5;
r = (pen_data & 0x7c00) >> 10; r = (pen_data & 0x7c00) >> 10;
r = (r << 3) | (r & 0x7); r = (r << 3) | (r & 0x7);
g = (g << 3) | (g & 0x7); g = (g << 3) | (g & 0x7);
b = (b << 3) | (b & 0x7); b = (b << 3) | (b & 0x7);
if(cliprect.contains(x, y)) if(cliprect.contains(x, y))
bitmap.pix32(y, x) = r << 16 | g << 8 | b; bitmap.pix32(y, x) = r << 16 | g << 8 | b;
} }
} }
} }
else if (m_vctl == 0x0001) // flip else if (m_vctl == 0x0001) // flip
{ {
for(y=0;y<256;y++) for(y=0;y<256;y++)
{ {
for(x=0;x<256;x++) for(x=0;x<256;x++)
{ {
UINT8 r,g,b; UINT8 r,g,b;
int pen_data; int pen_data;
pen_data = (m_vram[(256-x)+((256-y)*256)]); pen_data = (m_vram[(256-x)+((256-y)*256)]);
b = (pen_data & 0x001f); b = (pen_data & 0x001f);
g = (pen_data & 0x03e0) >> 5; g = (pen_data & 0x03e0) >> 5;
r = (pen_data & 0x7c00) >> 10; r = (pen_data & 0x7c00) >> 10;
r = (r << 3) | (r & 0x7); r = (r << 3) | (r & 0x7);
g = (g << 3) | (g & 0x7); g = (g << 3) | (g & 0x7);
b = (b << 3) | (b & 0x7); b = (b << 3) | (b & 0x7);
if(cliprect.contains(x, y)) if(cliprect.contains(x, y))
bitmap.pix32(y, x) = r << 16 | g << 8 | b; bitmap.pix32(y, x) = r << 16 | g << 8 | b;
} }
} }
} }
else else
{ {
logerror("invqix: Unhandled vctl %04x\n", m_vctl); logerror("invqix: Unhandled vctl %04x\n", m_vctl);
} }
return 0; return 0;
} }
@ -252,7 +255,7 @@ READ8_MEMBER(invqix_state::portg_r)
WRITE16_MEMBER(invqix_state::vctl_w) WRITE16_MEMBER(invqix_state::vctl_w)
{ {
m_vctl = data; m_vctl = data;
} }
static ADDRESS_MAP_START(invqix_prg_map, AS_PROGRAM, 16, invqix_state) static ADDRESS_MAP_START(invqix_prg_map, AS_PROGRAM, 16, invqix_state)
@ -262,7 +265,7 @@ static ADDRESS_MAP_START(invqix_prg_map, AS_PROGRAM, 16, invqix_state)
AM_RANGE(0x400000, 0x400001) AM_DEVWRITE8("oki", okim9810_device, write, 0xff00) AM_RANGE(0x400000, 0x400001) AM_DEVWRITE8("oki", okim9810_device, write, 0xff00)
AM_RANGE(0x400002, 0x400003) AM_DEVREAD8("oki", okim9810_device, read, 0xff00) AM_RANGE(0x400002, 0x400003) AM_DEVREAD8("oki", okim9810_device, read, 0xff00)
AM_RANGE(0x600000, 0x61ffff) AM_RAM AM_SHARE("vram") AM_RANGE(0x600000, 0x61ffff) AM_RAM AM_SHARE("vram")
AM_RANGE(0x620004, 0x620005) AM_WRITE(vctl_w) AM_RANGE(0x620004, 0x620005) AM_WRITE(vctl_w)
ADDRESS_MAP_END ADDRESS_MAP_END
static ADDRESS_MAP_START(invqix_io_map, AS_IO, 8, invqix_state) static ADDRESS_MAP_START(invqix_io_map, AS_IO, 8, invqix_state)