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Tseng ET4000w32x changes:

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Fixed freezes, once and for all, on win2000 (W32p).
Fixed some graphical glitches under win3.x that were caused by the FIFO (W32p).
Fixed vlb flag, now it loads the VLB rom properly (W32i).
Anything using the ICS ramdacs now has a svga->clock /= 2 in recalctimings (W32p rev c and W32/W32i).
This commit is contained in:
TC1995
2021-03-28 19:17:12 +02:00
parent 0e206a977e
commit f43284985d
1 changed files with 5 additions and 4 deletions
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9
src/video/vid_et4000w32.c
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@@ -444,7 +444,7 @@ et4000w32p_recalctimings(svga_t *svga)
svga->render = svga_render_2bpp_highres;
break;
case 0x40: case 0x60: /* 256+ colours */
if (et4000->type <= ET4000W32I)
if (et4000->type <= ET4000W32P_REVC)
svga->clock /= 2;
switch (svga->bpp) {
@@ -871,7 +871,7 @@ et4000w32p_mmu_read(uint32_t addr, void *p)
temp |= ACL_RDST;
if (FIFO_FULL)
temp |= ACL_WRST;
if (temp == ACL_XYST && (et4000->acl.internal.ctrl_routing & 3))
if (temp == ACL_XYST && (et4000->acl.internal.ctrl_routing == 1 || et4000->acl.internal.ctrl_routing == 2))
temp |= ACL_RDST;
} else {
et4000->acl.status &= ~(ACL_XYST | ACL_SSO);
@@ -1470,6 +1470,9 @@ et4000w32p_init(const device_t *info)
et4000->type = info->local;
et4000->pci = (info->flags & DEVICE_PCI) ? 0x80 : 0x00;
et4000->vlb = (info->flags & DEVICE_VLB) ? 0x40 : 0x00;
switch(et4000->type) {
case ET4000W32:
/* ET4000/W32 */
@@ -1548,8 +1551,6 @@ et4000w32p_init(const device_t *info)
et4000->svga.getclock = icd2061_getclock;
break;
}
et4000->pci = (info->flags & DEVICE_PCI) ? 0x80 : 0x00;
et4000->vlb = (info->flags & DEVICE_VLB) ? 0x40 : 0x00;
if (info->flags & DEVICE_PCI)
mem_mapping_disable(&et4000->bios_rom.mapping);