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[Core/VDP]

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-added support for nametable registers writes during HBLANK: fixes The Adventures of Batman & Robin (graphical issues during 2nd Boss fight)
-added support for VSRAM writes during HBLANK in 2-cell VSCROLL mode: fixes The Adventures of Batman & Robin (graphical issues during 2nd Boss fight)
This commit is contained in:
ekeeke31 2011-08-15 15:37:13 +00:00
parent 9b0d4d6a9c
commit e0c88d2fb0
1 changed files with 33 additions and 17 deletions
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50
source/vdp_ctrl.c
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@ -1792,6 +1792,13 @@ static void vdp_reg_w(unsigned int r, unsigned int d, unsigned int cycles)
{ {
reg[2] = d; reg[2] = d;
ntab = (d << 10) & 0xE000; ntab = (d << 10) & 0xE000;
/* Plane A Name Table Base changed during HBLANK */
if ((v_counter < bitmap.viewport.h) && (reg[1] & 0x40) && (cycles <= (mcycles_vdp + 860)))
{
/* render entire line */
render_line(v_counter);
}
break; break;
} }
@ -1806,6 +1813,13 @@ static void vdp_reg_w(unsigned int r, unsigned int d, unsigned int cycles)
{ {
ntwb = (d << 10) & 0xF800; ntwb = (d << 10) & 0xF800;
} }
/* Window Plane Name Table Base changed during HBLANK */
if ((v_counter < bitmap.viewport.h) && (reg[1] & 0x40) && (cycles <= (mcycles_vdp + 860)))
{
/* render entire line */
render_line(v_counter);
}
break; break;
} }
@ -1813,6 +1827,14 @@ static void vdp_reg_w(unsigned int r, unsigned int d, unsigned int cycles)
{ {
reg[4] = d; reg[4] = d;
ntbb = (d << 13) & 0xE000; ntbb = (d << 13) & 0xE000;
/* Plane B Name Table Base changed during HBLANK (Adventures of Batman & Robin) */
if ((v_counter < bitmap.viewport.h) && (reg[1] & 0x40) && (cycles <= (mcycles_vdp + 860)))
{
/* render entire line */
render_line(v_counter);
}
break; break;
} }
@ -1852,18 +1874,7 @@ static void vdp_reg_w(unsigned int r, unsigned int d, unsigned int cycles)
{ {
/* remap entire line */ /* remap entire line */
remap_line(v_counter); remap_line(v_counter);
#ifdef LOGVDP
error("Line remapped\n");
#endif
} }
#ifdef LOGVDP
else
{
error("Line NOT remapped\n");
}
#endif
} }
break; break;
} }
@ -2154,13 +2165,7 @@ static void vdp_bus_w(unsigned int data)
{ {
/* Remap current line */ /* Remap current line */
remap_line(v_counter); remap_line(v_counter);
#ifdef LOGVDP
error("Line remapped\n");
#endif
} }
#ifdef LOGVDP
else error("Line NOT remapped\n");
#endif
} }
break; break;
} }
@ -2171,6 +2176,17 @@ static void vdp_bus_w(unsigned int data)
error("[%d(%d)][%d(%d)] VSRAM 0x%x write -> 0x%x (%x)\n", v_counter, mcycles_68k/MCYCLES_PER_LINE-1, mcycles_68k, mcycles_68k%MCYCLES_PER_LINE, addr, data, m68k_get_reg(M68K_REG_PC)); error("[%d(%d)][%d(%d)] VSRAM 0x%x write -> 0x%x (%x)\n", v_counter, mcycles_68k/MCYCLES_PER_LINE-1, mcycles_68k, mcycles_68k%MCYCLES_PER_LINE, addr, data, m68k_get_reg(M68K_REG_PC));
#endif #endif
*(uint16 *)&vsram[addr & 0x7E] = data; *(uint16 *)&vsram[addr & 0x7E] = data;
/* 2-cell Vscroll mode */
if (reg[11] & 0x04)
{
/* VSRAM writes during HBLANK (Adventures of Batman & Robin) */
if ((v_counter < bitmap.viewport.h) && (reg[1]& 0x40) && (mcycles_68k <= (mcycles_vdp + 860)))
{
/* Remap current line */
render_line(v_counter);
}
}
break; break;
} }