void vga_out(uint16_t addr, uint8_t val, void *p)
{
vga_t *vga = (vga_t *)p;
svga_t *svga = &vga->svga;
uint8_t old;
// pclog("vga_out : %04X %02X %04X:%04X %02X %i\n", addr, val, CS,pc, ram[0x489], ins);
if (((addr & 0xfff0) == 0x3d0 || (addr & 0xfff0) == 0x3b0) && !(svga->miscout & 1))
addr ^= 0x60;
switch (addr)
{
case 0x3D4:
svga->crtcreg = val & 0x1f;
return;
case 0x3D5:
if ((svga->crtcreg < 7) && (svga->crtc[0x11] & 0x80))
return;
if ((svga->crtcreg == 7) && (svga->crtc[0x11] & 0x80))
val = (svga->crtc[7] & ~0x10) | (val & 0x10);
old = svga->crtc[svga->crtcreg];
svga->crtc[svga->crtcreg] = val;
if (old != val)
{
if (svga->crtcreg < 0xe || svga->crtcreg > 0x10)
{
svga->fullchange = changeframecount;
svga_recalctimings(svga);
}
}
break;
}
svga_out(addr, val, svga);
}
void cirrus_do_copy(gd5446_t *gd5446, svga_t *svga, int dst, int src, int w, int h)
{
int sx = 0, sy = 0;
int dx = 0, dy = 0;
int depth = 0;
int notify = 0;
/* make sure to onyl copy if it's a plain copy ROP */
if (*cirrus_rop == cirrus_bitblt_rop_fwd_src ||
*cirrus_rop == cirrus_bitblt_rop_bkwd_src)
{
int width, height;
depth = cirrus_get_bpp(gd5446, svga) / 8;
width = svga->video_res_x;
height = svga->video_res_y;
/* extra x, y */
sx = (src % ABS(gd5446->blt.src_pitch)) / depth;
sy = (src / ABS(gd5446->blt.src_pitch));
dx = (dst % ABS(gd5446->blt.dst_pitch)) / depth;
dy = (dst / ABS(gd5446->blt.dst_pitch));
/* normalize width */
w /= depth;
/* if we're doing a backward copy, we have to adjust
our x/y to be the upper left corner (instead of the lower right corner) */
if (gd5446->blt.dst_pitch < 0)
{
sx -= (gd5446->blt.width / depth) - 1;
dx -= (gd5446->blt.width / depth) - 1;
sy -= gd5446->blt.height - 1;
dy -= gd5446->blt.height - 1;
}
/* are we in the visible portion of memory? */
if (sx >= 0 && sy >= 0 && dx >= 0 && dy >= 0 &&
(sx + w) <= width && (sy + h) <= height &&
(dx + w) <= width && (dy + h) <= height)
{
notify = 1;
}
}
/* we have to flush all prending changes so that the copy
is generated at the appropriate moment in time */
if (notify)
{
svga->fullchange = changeframecount;
svga_recalctimings(svga);
}
/* we don't have to notify the display that this portion has
changed since qemu_console_copy implies this */
cirrus_invalidate_region(gd5446, svga, gd5446->blt.dst_addr, gd5446->blt.dst_pitch, gd5446->blt.width, gd5446->blt.height);
}
void tvga_out(uint16_t addr, uint8_t val, void *p)
{
tvga_t *tvga = (tvga_t *)p;
svga_t *svga = &tvga->svga;
uint8_t old;
// pclog("tvga_out : %04X %02X %04X:%04X %i\n", addr, val, CS,pc, svga->bpp);
if (((addr&0xFFF0) == 0x3D0 || (addr&0xFFF0) == 0x3B0) && !(svga->miscout & 1)) addr ^= 0x60;
switch (addr)
{
case 0x3C5:
switch (svga->seqaddr & 0xf)
{
case 0xB:
tvga->oldmode=1;
break;
case 0xC:
if (svga->seqregs[0xe] & 0x80)
svga->seqregs[0xc] = val;
break;
case 0xd:
if (tvga->oldmode)
tvga->oldctrl2 = val;
else
{
tvga->newctrl2 = val;
svga_recalctimings(svga);
}
break;
case 0xE:
if (tvga->oldmode)
tvga->oldctrl1 = val;
else
{
svga->seqregs[0xe] = val ^ 2;
svga->write_bank = (svga->seqregs[0xe] & 0xf) * 65536;
if (!(svga->gdcreg[0xf] & 1))
svga->read_bank = svga->write_bank;
}
return;
}
break;
case 0x3C6: case 0x3C7: case 0x3C8: case 0x3C9:
tkd8001_ramdac_out(addr, val, &tvga->ramdac, svga);
return;
case 0x3CF:
switch (svga->gdcaddr & 15)
{
case 0xE:
svga->gdcreg[0xe] = val ^ 2;
if ((svga->gdcreg[0xf] & 1) == 1)
svga->read_bank = (svga->gdcreg[0xe] & 0xf) * 65536;
break;
case 0xF:
if (val & 1) svga->read_bank = (svga->gdcreg[0xe] & 0xf) *65536;
else svga->read_bank = (svga->seqregs[0xe] & 0xf) *65536;
svga->write_bank = (svga->seqregs[0xe] & 0xf) * 65536;
break;
}
break;
case 0x3D4:
svga->crtcreg = val & 0x3f;
return;
case 0x3D5:
if ((svga->crtcreg < 7) && (svga->crtc[0x11] & 0x80))
return;
if ((svga->crtcreg == 7) && (svga->crtc[0x11] & 0x80))
val = (svga->crtc[7] & ~0x10) | (val & 0x10);
old = svga->crtc[svga->crtcreg];
val &= crtc_mask[svga->crtcreg];
svga->crtc[svga->crtcreg] = val;
// if (svga->crtcreg != 0xC && svga->crtcreg != 0xE && svga->crtcreg != 0xF) pclog("CRTC R%02X = %02X %04X:%04X\n", svga->crtcreg, val, CS, pc);
if (old != val)
{
if (svga->crtcreg < 0xE || svga->crtcreg > 0x10)
{
svga->fullchange = changeframecount;
svga_recalctimings(svga);
}
}
switch (svga->crtcreg)
{
case 0x1e:
svga->vrammask = (val & 0x80) ? tvga->vram_mask : 0x3ffff;
break;
}
return;
case 0x3D8:
tvga->tvga_3d8 = val;
if (svga->gdcreg[0xf] & 4)
{
svga->write_bank = (val & 0x1f) * 65536;
// pclog("SVGAWBANK 3D8 %08X %04X:%04X\n",svgawbank,CS,pc);
if (!(svga->gdcreg[0xf] & 1))
{
svga->read_bank = (val & 0x1f) * 65536;
// pclog("SVGARBANK 3D8 %08X %04X:%04X\n",svgarbank,CS,pc);
}
}
return;
case 0x3D9:
tvga->tvga_3d9=val;
if ((svga->gdcreg[0xf] & 5) == 5)
{
svga->read_bank = (val & 0x1F) * 65536;
// pclog("SVGARBANK 3D9 %08X %04X:%04X\n",svgarbank,CS,pc);
}
return;
}
svga_out(addr, val, svga);
}
void vga_speed_changed(void *p)
{
vga_t *vga = (vga_t *)p;
svga_recalctimings(&vga->svga);
}
