mirror of
https://github.com/holub/mame
synced 2025-07-07 19:03:29 +03:00
trident: added mono bitmaps generated by writing to VRAM.
This commit is contained in:
mahlemiut
parent
f948931bf8
commit
be32f60978
@ -14,11 +14,12 @@ const device_type TRIDENT_VGA = &device_creator<trident_vga_device>;
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#define CRTC_PORT_ADDR ((vga.miscellaneous_output&1)?0x3d0:0x3b0)
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#define READPIXEL8(x,y) (vga.memory[(y*offset() + x) % vga.svga_intf.vram_size])
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#define WRITEPIXEL8(x,y,c) if(x<tri.accel_dest_y_clip && y<tri.accel_dest_y_clip) \
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(vga.memory[(y*offset() + x) % vga.svga_intf.vram_size] = c)
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#define READPIXEL8(x,y) (vga.memory[((y & 0xfff)*offset() + (x & 0xfff)) % vga.svga_intf.vram_size])
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#define WRITEPIXEL8(x,y,c) if((x & 0xfff)<tri.accel_dest_x_clip && (y & 0xfff)<tri.accel_dest_y_clip) \
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(vga.memory[((y & 0xfff)*offset() + (x & 0xfff)) % vga.svga_intf.vram_size] = c)
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#define LOG (1)
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#define LOG_ACCEL (0)
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trident_vga_device::trident_vga_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
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: svga_device(mconfig, TRIDENT_VGA, "Trident TGUI9680", tag, owner, clock, "trident_vga", __FILE__)
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@ -68,6 +69,7 @@ void trident_vga_device::device_reset()
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tri.sr0c = 0x78;
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tri.port_3c3 = true;
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tri.accel_busy = false;
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tri.accel_memwrite_active = false;
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}
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UINT16 trident_vga_device::offset()
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@ -470,7 +472,9 @@ READ8_MEMBER(trident_vga_device::port_03d0_r)
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break;
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case 8:
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if(tri.gc0f & 0x04) // if enabled
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{
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res = svga.bank_w & 0x3f;
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}
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else
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res = 0xff;
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break;
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@ -506,15 +510,22 @@ WRITE8_MEMBER(trident_vga_device::port_03d0_w)
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if(tri.gc0f & 0x04) // if enabled
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{
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svga.bank_w = data & 0x3f;
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if(LOG) logerror("Trident: Write Bank set to %02x\n",data);
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if(!(tri.gc0f & 0x01)) // if bank regs are not separated
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{
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svga.bank_r = data & 0x3f; // then this is also the read bank register
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if(LOG) logerror("Trident: Read Bank set to %02x\n",data);
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}
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}
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break;
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case 9:
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if(tri.gc0f & 0x04) // if enabled
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{
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if(tri.gc0f & 0x01) // and if bank regs are separated
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{
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svga.bank_r = data & 0x3f;
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if(LOG) logerror("Trident: Read Bank set to %02x\n",data);
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}
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}
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break;
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default:
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@ -579,6 +590,14 @@ READ8_MEMBER(trident_vga_device::mem_r )
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WRITE8_MEMBER(trident_vga_device::mem_w)
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{
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if(tri.accel_memwrite_active)
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{
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tri.accel_transfer = (tri.accel_transfer & (~(0x000000ff << (24-(8*(offset % 4)))))) | (data << (24-(8 * (offset % 4))));
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if(offset % 4 == 3)
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accel_data_write(tri.accel_transfer);
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return;
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}
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if (svga.rgb8_en || svga.rgb15_en || svga.rgb16_en || svga.rgb32_en)
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{
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if(tri.new_mode) // 64k from 0xA0000-0xAFFFF
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@ -703,11 +722,11 @@ WRITE8_MEMBER(trident_vga_device::accel_w)
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{
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case 0x02: // Operation Mode
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tri.accel_opermode = (tri.accel_opermode & 0xff00) | data;
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if(LOG) logerror("Trident: Operation Mode set to %04x\n",tri.accel_opermode);
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if(LOG_ACCEL) logerror("Trident: Operation Mode set to %04x\n",tri.accel_opermode);
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break;
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case 0x03:
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tri.accel_opermode = (tri.accel_opermode & 0x00ff) | (data << 8);
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if(LOG) logerror("Trident: Operation Mode set to %04x\n",tri.accel_opermode);
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if(LOG_ACCEL) logerror("Trident: Operation Mode set to %04x\n",tri.accel_opermode);
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break;
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case 0x04: // Command register
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tri.accel_command = data;
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@ -715,212 +734,210 @@ WRITE8_MEMBER(trident_vga_device::accel_w)
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break;
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case 0x07: // Foreground Mix?
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tri.accel_fmix = data;
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if(LOG) logerror("Trident: FMIX set to %02x\n",data);
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if(LOG_ACCEL) logerror("Trident: FMIX set to %02x\n",data);
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break;
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case 0x08: // Draw flags
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tri.accel_drawflags = (tri.accel_drawflags & 0xffffff00) | data;
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if(LOG) logerror("Trident: Draw flags set to %08x\n",tri.accel_drawflags);
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if(LOG_ACCEL) logerror("Trident: Draw flags set to %08x\n",tri.accel_drawflags);
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break;
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case 0x09:
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tri.accel_drawflags = (tri.accel_drawflags & 0xffff00ff) | (data << 8);
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if(LOG) logerror("Trident: Draw flags set to %08x\n",tri.accel_drawflags);
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if(LOG_ACCEL) logerror("Trident: Draw flags set to %08x\n",tri.accel_drawflags);
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break;
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case 0x0a:
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tri.accel_drawflags = (tri.accel_drawflags & 0xff00ffff) | (data << 16);
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if(LOG) logerror("Trident: Draw flags set to %08x\n",tri.accel_drawflags);
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if(LOG_ACCEL) logerror("Trident: Draw flags set to %08x\n",tri.accel_drawflags);
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break;
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case 0x0b:
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tri.accel_drawflags = (tri.accel_drawflags & 0x00ffffff) | (data << 24);
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if(LOG) logerror("Trident: Draw flags set to %08x\n",tri.accel_drawflags);
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if(LOG_ACCEL) logerror("Trident: Draw flags set to %08x\n",tri.accel_drawflags);
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break;
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case 0x0c: // Foreground Colour
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tri.accel_fgcolour = (tri.accel_fgcolour & 0xffffff00) | data;
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if(LOG) logerror("Trident: Foreground Colour set to %08x\n",tri.accel_fgcolour);
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if(LOG_ACCEL) logerror("Trident: Foreground Colour set to %08x\n",tri.accel_fgcolour);
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break;
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case 0x0d:
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tri.accel_fgcolour = (tri.accel_fgcolour & 0xffff00ff) | (data << 8);
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if(LOG) logerror("Trident: Foreground Colour set to %08x\n",tri.accel_fgcolour);
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if(LOG_ACCEL) logerror("Trident: Foreground Colour set to %08x\n",tri.accel_fgcolour);
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break;
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case 0x0e:
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tri.accel_fgcolour = (tri.accel_fgcolour & 0xff00ffff) | (data << 16);
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if(LOG) logerror("Trident: Foreground Colour set to %08x\n",tri.accel_fgcolour);
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if(LOG_ACCEL) logerror("Trident: Foreground Colour set to %08x\n",tri.accel_fgcolour);
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break;
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case 0x0f:
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tri.accel_fgcolour = (tri.accel_fgcolour & 0x00ffffff) | (data << 24);
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if(LOG) logerror("Trident: Foreground Colour set to %08x\n",tri.accel_fgcolour);
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if(LOG_ACCEL) logerror("Trident: Foreground Colour set to %08x\n",tri.accel_fgcolour);
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break;
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case 0x10: // Background Colour
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tri.accel_bgcolour = (tri.accel_bgcolour & 0xffffff00) | data;
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if(LOG) logerror("Trident: Background Colour set to %08x\n",tri.accel_bgcolour);
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if(LOG_ACCEL) logerror("Trident: Background Colour set to %08x\n",tri.accel_bgcolour);
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break;
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case 0x11:
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tri.accel_bgcolour = (tri.accel_bgcolour & 0xffff00ff) | (data << 8);
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if(LOG) logerror("Trident: Background Colour set to %08x\n",tri.accel_bgcolour);
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if(LOG_ACCEL) logerror("Trident: Background Colour set to %08x\n",tri.accel_bgcolour);
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break;
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case 0x12:
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tri.accel_bgcolour = (tri.accel_bgcolour & 0xff00ffff) | (data << 16);
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if(LOG) logerror("Trident: Background Colour set to %08x\n",tri.accel_bgcolour);
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if(LOG_ACCEL) logerror("Trident: Background Colour set to %08x\n",tri.accel_bgcolour);
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break;
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case 0x13:
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tri.accel_bgcolour = (tri.accel_bgcolour & 0x00ffffff) | (data << 24);
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if(LOG) logerror("Trident: Background Colour set to %08x\n",tri.accel_bgcolour);
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if(LOG_ACCEL) logerror("Trident: Background Colour set to %08x\n",tri.accel_bgcolour);
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break;
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case 0x14: // Pattern Location
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tri.accel_pattern_loc = (tri.accel_pattern_loc & 0xff00) | data;
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if(LOG) logerror("Trident: Pattern Location set to %04x\n",tri.accel_pattern_loc);
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debugger_break(machine());
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if(LOG_ACCEL) logerror("Trident: Pattern Location set to %04x\n",tri.accel_pattern_loc);
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break;
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case 0x15:
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tri.accel_pattern_loc = (tri.accel_pattern_loc & 0x00ff) | (data << 8);
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if(LOG) logerror("Trident: Pattern Location set to %04x\n",tri.accel_pattern_loc);
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debugger_break(machine());
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if(LOG_ACCEL) logerror("Trident: Pattern Location set to %04x\n",tri.accel_pattern_loc);
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break;
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case 0x18: // Destination X
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tri.accel_dest_x = (tri.accel_dest_x & 0xff00) | data;
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if(LOG) logerror("Trident: Destination X set to %04x\n",tri.accel_dest_x);
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if(LOG_ACCEL) logerror("Trident: Destination X set to %04x\n",tri.accel_dest_x);
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break;
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case 0x19:
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tri.accel_dest_x = (tri.accel_dest_x & 0x00ff) | (data << 8);
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if(LOG) logerror("Trident: Destination X set to %04x\n",tri.accel_dest_x);
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if(LOG_ACCEL) logerror("Trident: Destination X set to %04x\n",tri.accel_dest_x);
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break;
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case 0x1a: // Destination Y
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tri.accel_dest_y = (tri.accel_dest_y & 0xff00) | data;
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if(LOG) logerror("Trident: Destination Y set to %04x\n",tri.accel_dest_y);
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if(LOG_ACCEL) logerror("Trident: Destination Y set to %04x\n",tri.accel_dest_y);
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break;
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case 0x1b:
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tri.accel_dest_y = (tri.accel_dest_y & 0x00ff) | (data << 8);
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if(LOG) logerror("Trident: Destination Y set to %04x\n",tri.accel_dest_y);
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if(LOG_ACCEL) logerror("Trident: Destination Y set to %04x\n",tri.accel_dest_y);
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break;
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case 0x1c: // Source X
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tri.accel_source_x = (tri.accel_source_x & 0xff00) | data;
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if(LOG) logerror("Trident: Source X set to %04x\n",tri.accel_source_x);
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if(LOG_ACCEL) logerror("Trident: Source X set to %04x\n",tri.accel_source_x);
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break;
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case 0x1d:
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tri.accel_source_x = (tri.accel_source_x & 0x00ff) | (data << 8);
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if(LOG) logerror("Trident: Source X set to %04x\n",tri.accel_source_x);
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if(LOG_ACCEL) logerror("Trident: Source X set to %04x\n",tri.accel_source_x);
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break;
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case 0x1e: // Source Y
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tri.accel_source_y = (tri.accel_source_y & 0xff00) | data;
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if(LOG) logerror("Trident: Source Y set to %04x\n",tri.accel_source_y);
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if(LOG_ACCEL) logerror("Trident: Source Y set to %04x\n",tri.accel_source_y);
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break;
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case 0x1f:
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tri.accel_source_y = (tri.accel_source_y & 0x00ff) | (data << 8);
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if(LOG) logerror("Trident: Source Y set to %04x\n",tri.accel_source_y);
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if(LOG_ACCEL) logerror("Trident: Source Y set to %04x\n",tri.accel_source_y);
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break;
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case 0x20: // Dimension(?) X
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tri.accel_dim_x = (tri.accel_dim_x & 0xff00) | data;
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if(LOG) logerror("Trident: Dimension X set to %04x\n",tri.accel_dim_x);
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if(LOG_ACCEL) logerror("Trident: Dimension X set to %04x\n",tri.accel_dim_x);
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break;
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case 0x21:
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tri.accel_dim_x = (tri.accel_dim_x & 0x00ff) | (data << 8);
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if(LOG) logerror("Trident: Dimension X set to %04x\n",tri.accel_dim_x);
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if(LOG_ACCEL) logerror("Trident: Dimension X set to %04x\n",tri.accel_dim_x);
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break;
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case 0x22: // Dimension(?) Y
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tri.accel_dim_y = (tri.accel_dim_y & 0xff00) | data;
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if(LOG) logerror("Trident: Dimension y set to %04x\n",tri.accel_dim_y);
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if(LOG_ACCEL) logerror("Trident: Dimension y set to %04x\n",tri.accel_dim_y);
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break;
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case 0x23:
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tri.accel_dim_y = (tri.accel_dim_y & 0x00ff) | (data << 8);
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if(LOG) logerror("Trident: Dimension y set to %04x\n",tri.accel_dim_y);
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if(LOG_ACCEL) logerror("Trident: Dimension y set to %04x\n",tri.accel_dim_y);
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break;
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case 0x24: // Style
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tri.accel_style = (tri.accel_style & 0xffffff00) | data;
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if(LOG) logerror("Trident: Style set to %08x\n",tri.accel_style);
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if(LOG_ACCEL) logerror("Trident: Style set to %08x\n",tri.accel_style);
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break;
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case 0x25:
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tri.accel_style = (tri.accel_style & 0xffff00ff) | (data << 8);
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if(LOG) logerror("Trident: Style set to %08x\n",tri.accel_style);
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if(LOG_ACCEL) logerror("Trident: Style set to %08x\n",tri.accel_style);
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break;
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case 0x26:
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tri.accel_style = (tri.accel_style & 0xff00ffff) | (data << 16);
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if(LOG) logerror("Trident: Style set to %08x\n",tri.accel_style);
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if(LOG_ACCEL) logerror("Trident: Style set to %08x\n",tri.accel_style);
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break;
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case 0x27:
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tri.accel_style = (tri.accel_style & 0x00ffffff) | (data << 24);
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if(LOG) logerror("Trident: Style set to %08x\n",tri.accel_style);
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if(LOG_ACCEL) logerror("Trident: Style set to %08x\n",tri.accel_style);
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break;
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case 0x28: // Source Clip X
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tri.accel_source_x_clip = (tri.accel_source_x_clip & 0xff00) | data;
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if(LOG) logerror("Trident: Source X Clip set to %04x\n",tri.accel_source_x_clip);
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if(LOG_ACCEL) logerror("Trident: Source X Clip set to %04x\n",tri.accel_source_x_clip);
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break;
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case 0x29:
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tri.accel_source_x_clip = (tri.accel_source_x_clip & 0x00ff) | (data << 8);
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if(LOG) logerror("Trident: Source X Clip set to %04x\n",tri.accel_source_x_clip);
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if(LOG_ACCEL) logerror("Trident: Source X Clip set to %04x\n",tri.accel_source_x_clip);
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break;
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case 0x2a: // Source Clip Y
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tri.accel_source_y_clip = (tri.accel_source_y_clip & 0xff00) | data;
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if(LOG) logerror("Trident: Source Y Clip set to %04x\n",tri.accel_source_y_clip);
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if(LOG_ACCEL) logerror("Trident: Source Y Clip set to %04x\n",tri.accel_source_y_clip);
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break;
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case 0x2b:
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tri.accel_source_y_clip = (tri.accel_source_y_clip & 0x00ff) | (data << 8);
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if(LOG) logerror("Trident: Source Y Clip set to %04x\n",tri.accel_source_y_clip);
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if(LOG_ACCEL) logerror("Trident: Source Y Clip set to %04x\n",tri.accel_source_y_clip);
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break;
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case 0x2c: // Destination Clip X
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tri.accel_dest_x_clip = (tri.accel_dest_x_clip & 0xff00) | data;
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if(LOG) logerror("Trident: Destination X Clip set to %04x\n",tri.accel_dest_x_clip);
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if(LOG_ACCEL) logerror("Trident: Destination X Clip set to %04x\n",tri.accel_dest_x_clip);
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break;
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case 0x2d:
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tri.accel_dest_x_clip = (tri.accel_dest_x_clip & 0x00ff) | (data << 8);
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if(LOG) logerror("Trident: Destination X Clip set to %04x\n",tri.accel_dest_x_clip);
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if(LOG_ACCEL) logerror("Trident: Destination X Clip set to %04x\n",tri.accel_dest_x_clip);
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break;
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case 0x2e: // Destination Clip Y
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tri.accel_dest_y_clip = (tri.accel_dest_y_clip & 0xff00) | data;
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if(LOG) logerror("Trident: Destination Y Clip set to %04x\n",tri.accel_dest_y_clip);
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if(LOG_ACCEL) logerror("Trident: Destination Y Clip set to %04x\n",tri.accel_dest_y_clip);
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break;
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case 0x2f:
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tri.accel_dest_y_clip = (tri.accel_dest_y_clip & 0x00ff) | (data << 8);
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if(LOG) logerror("Trident: Destination Y Clip set to %04x\n",tri.accel_dest_y_clip);
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if(LOG_ACCEL) logerror("Trident: Destination Y Clip set to %04x\n",tri.accel_dest_y_clip);
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break;
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case 0x48: // CKEY (Chromakey?)
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tri.accel_ckey = (tri.accel_ckey & 0xffffff00) | data;
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if(LOG) logerror("Trident: CKey set to %08x\n",tri.accel_ckey);
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if(LOG_ACCEL) logerror("Trident: CKey set to %08x\n",tri.accel_ckey);
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break;
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case 0x49:
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tri.accel_ckey = (tri.accel_ckey & 0xffff00ff) | (data << 8);
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if(LOG) logerror("Trident: CKey set to %08x\n",tri.accel_ckey);
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if(LOG_ACCEL) logerror("Trident: CKey set to %08x\n",tri.accel_ckey);
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break;
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case 0x4a:
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tri.accel_ckey = (tri.accel_ckey & 0xff00ffff) | (data << 16);
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if(LOG) logerror("Trident: CKey set to %08x\n",tri.accel_ckey);
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if(LOG_ACCEL) logerror("Trident: CKey set to %08x\n",tri.accel_ckey);
|
||||
break;
|
||||
case 0x4b:
|
||||
tri.accel_ckey = (tri.accel_ckey & 0x00ffffff) | (data << 24);
|
||||
if(LOG) logerror("Trident: CKey set to %08x\n",tri.accel_ckey);
|
||||
if(LOG_ACCEL) logerror("Trident: CKey set to %08x\n",tri.accel_ckey);
|
||||
break;
|
||||
case 0x58: // Foreground Pattern Colour
|
||||
tri.accel_fg_pattern_colour = (tri.accel_fg_pattern_colour & 0xffffff00) | data;
|
||||
if(LOG) logerror("Trident: FG Pattern Colour set to %08x\n",tri.accel_fg_pattern_colour);
|
||||
if(LOG_ACCEL) logerror("Trident: FG Pattern Colour set to %08x\n",tri.accel_fg_pattern_colour);
|
||||
break;
|
||||
case 0x59:
|
||||
tri.accel_fg_pattern_colour = (tri.accel_fg_pattern_colour & 0xffff00ff) | (data << 8);
|
||||
if(LOG) logerror("Trident: FG Pattern Colour set to %08x\n",tri.accel_fg_pattern_colour);
|
||||
if(LOG_ACCEL) logerror("Trident: FG Pattern Colour set to %08x\n",tri.accel_fg_pattern_colour);
|
||||
break;
|
||||
case 0x5a:
|
||||
tri.accel_fg_pattern_colour = (tri.accel_fg_pattern_colour & 0xff00ffff) | (data << 16);
|
||||
if(LOG) logerror("Trident: FG Pattern Colour set to %08x\n",tri.accel_fg_pattern_colour);
|
||||
if(LOG_ACCEL) logerror("Trident: FG Pattern Colour set to %08x\n",tri.accel_fg_pattern_colour);
|
||||
break;
|
||||
case 0x5b:
|
||||
tri.accel_fg_pattern_colour = (tri.accel_fg_pattern_colour & 0x00ffffff) | (data << 24);
|
||||
if(LOG) logerror("Trident: FG Pattern Colour set to %08x\n",tri.accel_fg_pattern_colour);
|
||||
if(LOG_ACCEL) logerror("Trident: FG Pattern Colour set to %08x\n",tri.accel_fg_pattern_colour);
|
||||
break;
|
||||
case 0x5c: // Background Pattern Colour
|
||||
tri.accel_bg_pattern_colour = (tri.accel_bg_pattern_colour & 0xffffff00) | data;
|
||||
if(LOG) logerror("Trident: BG Pattern Colour set to %08x\n",tri.accel_bg_pattern_colour);
|
||||
if(LOG_ACCEL) logerror("Trident: BG Pattern Colour set to %08x\n",tri.accel_bg_pattern_colour);
|
||||
break;
|
||||
case 0x5d:
|
||||
tri.accel_bg_pattern_colour = (tri.accel_bg_pattern_colour & 0xffff00ff) | (data << 8);
|
||||
if(LOG) logerror("Trident: BG Pattern Colour set to %08x\n",tri.accel_bg_pattern_colour);
|
||||
if(LOG_ACCEL) logerror("Trident: BG Pattern Colour set to %08x\n",tri.accel_bg_pattern_colour);
|
||||
break;
|
||||
case 0x5e:
|
||||
tri.accel_bg_pattern_colour = (tri.accel_bg_pattern_colour & 0xff00ffff) | (data << 16);
|
||||
if(LOG) logerror("Trident: BG Pattern Colour set to %08x\n",tri.accel_bg_pattern_colour);
|
||||
if(LOG_ACCEL) logerror("Trident: BG Pattern Colour set to %08x\n",tri.accel_bg_pattern_colour);
|
||||
break;
|
||||
case 0x5f:
|
||||
tri.accel_bg_pattern_colour = (tri.accel_bg_pattern_colour & 0x00ffffff) | (data << 24);
|
||||
if(LOG) logerror("Trident: BG Pattern Colour set to %08x\n",tri.accel_bg_pattern_colour);
|
||||
if(LOG_ACCEL) logerror("Trident: BG Pattern Colour set to %08x\n",tri.accel_bg_pattern_colour);
|
||||
break;
|
||||
default:
|
||||
if(LOG) logerror("Trident: unimplemented acceleration register offset %02x write %02x\n",offset,data);
|
||||
logerror("Trident: unimplemented acceleration register offset %02x write %02x\n",offset,data);
|
||||
}
|
||||
}
|
||||
|
||||
@ -933,7 +950,7 @@ void trident_vga_device::accel_command()
|
||||
break;
|
||||
case 0x01:
|
||||
if(LOG) logerror("Trident: Command: BitBLT ROP3 (Source %i,%i Dest %i,%i Size %i,%i)\n",tri.accel_source_x,tri.accel_source_y,tri.accel_dest_x,tri.accel_dest_y,tri.accel_dim_x,tri.accel_dim_y);
|
||||
logerror("BitBLT: Drawflags = %08x\n",tri.accel_drawflags);
|
||||
if(LOG) logerror("BitBLT: Drawflags = %08x FMIX = %02x\n",tri.accel_drawflags,tri.accel_fmix);
|
||||
accel_bitblt();
|
||||
break;
|
||||
case 0x02:
|
||||
@ -973,6 +990,14 @@ void trident_vga_device::accel_bitblt()
|
||||
int xdir,ydir;
|
||||
int xstart,xend,ystart,yend;
|
||||
|
||||
if(tri.accel_drawflags & 0x0040) // TODO: handle PATMONO also
|
||||
{
|
||||
tri.accel_mem_x = tri.accel_dest_x;
|
||||
tri.accel_mem_y = tri.accel_dest_y;
|
||||
tri.accel_memwrite_active = true;
|
||||
return;
|
||||
}
|
||||
|
||||
if(tri.accel_drawflags & 0x0200)
|
||||
{
|
||||
xdir = -1;
|
||||
@ -1036,7 +1061,7 @@ void trident_vga_device::accel_line()
|
||||
// if(LOG_8514) logerror("8514/A: Command (%04x) - Line (Bresenham) - %i,%i Axial %i, Diagonal %i, Error %i, Major Axis %i, Minor Axis %i\n",ibm8514.current_cmd,
|
||||
// ibm8514.curr_x,ibm8514.curr_y,ibm8514.line_axial_step,ibm8514.line_diagonal_step,ibm8514.line_errorterm,ibm8514.rect_width,ibm8514.rect_height);
|
||||
|
||||
if(tri.accel_drawflags & 0x400)
|
||||
if(tri.accel_drawflags & 0x0400)
|
||||
{
|
||||
temp = dx; dx = dy; dy = temp;
|
||||
}
|
||||
@ -1057,3 +1082,21 @@ void trident_vga_device::accel_line()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// feed data written to VRAM to an active BitBLT command
|
||||
void trident_vga_device::accel_data_write(UINT32 data)
|
||||
{
|
||||
for(int x=31;x>=0;x--)
|
||||
{
|
||||
if(((data >> x) & 0x01) != 0)
|
||||
WRITEPIXEL8(tri.accel_mem_x,tri.accel_mem_y,tri.accel_fgcolour);
|
||||
tri.accel_mem_x++;
|
||||
}
|
||||
if(tri.accel_mem_x > tri.accel_dest_x+tri.accel_dim_x)
|
||||
{
|
||||
tri.accel_mem_x = tri.accel_dest_x;
|
||||
tri.accel_mem_y++;
|
||||
if(tri.accel_mem_y > tri.accel_dest_y+tri.accel_dim_y)
|
||||
tri.accel_memwrite_active = false; // completed
|
||||
}
|
||||
}
|
||||
|
||||
@ -87,6 +87,10 @@ protected:
|
||||
UINT32 accel_bg_pattern_colour;
|
||||
UINT8 accel_pattern[0x80];
|
||||
bool accel_busy;
|
||||
bool accel_memwrite_active; // true when writing to VRAM will push data to an ongoing command (SRCMONO/PATMONO)
|
||||
INT16 accel_mem_x;
|
||||
INT16 accel_mem_y;
|
||||
UINT32 accel_transfer;
|
||||
} tri;
|
||||
private:
|
||||
UINT8 trident_seq_reg_read(UINT8 index);
|
||||
@ -100,6 +104,7 @@ private:
|
||||
void accel_command();
|
||||
void accel_bitblt();
|
||||
void accel_line();
|
||||
void accel_data_write(UINT32 data);
|
||||
};
|
||||
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user