mirror of
https://github.com/holub/mame
synced 2025-05-29 17:13:05 +03:00
some improvements to shanghai video drivers:
1) convert framebuffer's ram from 8 bit to 16 bit 2) convert dma command from 8 bit to 16 bit 3) convert gfx command from 8 bit to 16 bit 4) implemented all gfx mode: 1,2,4,8,16 bpp for now the rendering is only 8 bpp now we can use this gfx chip for adp driver that use 4bpp
This commit is contained in:
Roberto Zandona
parent
a85c4c754d
commit
526be2629c
@ -25,21 +25,24 @@ displayed.
|
||||
#include "driver.h"
|
||||
#include "audio/seibu.h"
|
||||
|
||||
static int get_pixel(int x,int y);
|
||||
|
||||
/* the on-chip FIFO is 16 bytes long, but we use a larger one to simplify */
|
||||
/* decoding of long commands. Commands can be up to 64KB long... but Shanghai */
|
||||
/* doesn't reach that length. */
|
||||
|
||||
#define FIFO_LENGTH 50
|
||||
#define HD63484_RAM_SIZE 0x200000
|
||||
#define HD63484_RAM_SIZE 0x100000
|
||||
|
||||
static int fifo_counter;
|
||||
static UINT16 fifo[FIFO_LENGTH];
|
||||
static UINT16 readfifo;
|
||||
static UINT8 *HD63484_ram;
|
||||
static UINT16 *HD63484_ram;
|
||||
static UINT16 HD63484_reg[256/2];
|
||||
static int org,rwp;
|
||||
static UINT16 cl0,cl1,ccmp;
|
||||
static int org,org_dpd,rwp;
|
||||
static UINT16 cl0,cl1,ccmp,edg,mask,ppy,pzcy,ppx,pzcs,psy,psx,pey,pzy,pex,pzx,xmin,ymin,xmax,ymax,rwp_dn;
|
||||
static INT16 cpx,cpy;
|
||||
|
||||
|
||||
static const int instruction_length[64] =
|
||||
{
|
||||
0, 3, 2, 1, /* 0x */
|
||||
@ -87,7 +90,7 @@ static void HD63484_start(void)
|
||||
memset(HD63484_ram,0,HD63484_RAM_SIZE);
|
||||
}
|
||||
|
||||
static void doclr(int opcode,UINT16 fill,int *dst,INT16 _ax,INT16 _ay)
|
||||
static void doclr16(int opcode,UINT16 fill,int *dst,INT16 _ax,INT16 _ay)
|
||||
{
|
||||
INT16 ax,ay;
|
||||
|
||||
@ -101,13 +104,17 @@ static void doclr(int opcode,UINT16 fill,int *dst,INT16 _ax,INT16 _ay)
|
||||
switch (opcode & 0x0003)
|
||||
{
|
||||
case 0:
|
||||
HD63484_ram[*dst] = fill; break;
|
||||
HD63484_ram[*dst] = fill;
|
||||
break;
|
||||
case 1:
|
||||
HD63484_ram[*dst] |= fill; break;
|
||||
HD63484_ram[*dst] |= fill;
|
||||
break;
|
||||
case 2:
|
||||
HD63484_ram[*dst] &= fill; break;
|
||||
HD63484_ram[*dst] &= fill;
|
||||
break;
|
||||
case 3:
|
||||
HD63484_ram[*dst] ^= fill; break;
|
||||
HD63484_ram[*dst] ^= fill;
|
||||
break;
|
||||
}
|
||||
if (ax == 0) break;
|
||||
else if (ax > 0)
|
||||
@ -125,20 +132,20 @@ static void doclr(int opcode,UINT16 fill,int *dst,INT16 _ax,INT16 _ay)
|
||||
ax = _ax;
|
||||
if (_ay < 0)
|
||||
{
|
||||
*dst = (*dst + (HD63484_reg[0xca/2] & 0x0fff) * 2 - ax) & (HD63484_RAM_SIZE-1);
|
||||
*dst = (*dst + (HD63484_reg[0xca/2] & 0x0fff) - ax) & (HD63484_RAM_SIZE-1);
|
||||
if (ay == 0) break;
|
||||
ay++;
|
||||
}
|
||||
else
|
||||
{
|
||||
*dst = (*dst - (HD63484_reg[0xca/2] & 0x0fff) * 2 - ax) & (HD63484_RAM_SIZE-1);
|
||||
*dst = (*dst - (HD63484_reg[0xca/2] & 0x0fff) - ax) & (HD63484_RAM_SIZE-1);
|
||||
if (ay == 0) break;
|
||||
ay--;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void docpy(int opcode,int src,int *dst,INT16 _ax,INT16 _ay)
|
||||
static void docpy16(int opcode,int src,int *dst,INT16 _ax,INT16 _ay)
|
||||
{
|
||||
int dstep1,dstep2;
|
||||
int ax = _ax;
|
||||
@ -147,14 +154,14 @@ static void docpy(int opcode,int src,int *dst,INT16 _ax,INT16 _ay)
|
||||
switch (opcode & 0x0700)
|
||||
{
|
||||
default:
|
||||
case 0x0000: dstep1 = 1; dstep2 = -1 * (HD63484_reg[0xca/2] & 0x0fff) * 2 - ax * dstep1; break;
|
||||
case 0x0100: dstep1 = 1; dstep2 = (HD63484_reg[0xca/2] & 0x0fff) * 2 - ax * dstep1; break;
|
||||
case 0x0200: dstep1 = -1; dstep2 = -1 * (HD63484_reg[0xca/2] & 0x0fff) * 2 + ax * dstep1; break;
|
||||
case 0x0300: dstep1 = -1; dstep2 = (HD63484_reg[0xca/2] & 0x0fff) * 2 + ax * dstep1; break;
|
||||
case 0x0400: dstep1 = -1 * (HD63484_reg[0xca/2] & 0x0fff) * 2; dstep2 = 1 - ay * dstep1; break;
|
||||
case 0x0500: dstep1 = (HD63484_reg[0xca/2] & 0x0fff) * 2; dstep2 = 1 - ay * dstep1; break;
|
||||
case 0x0600: dstep1 = -1 * (HD63484_reg[0xca/2] & 0x0fff) * 2; dstep2 = -1 + ay * dstep1; break;
|
||||
case 0x0700: dstep1 = (HD63484_reg[0xca/2] & 0x0fff) * 2; dstep2 = -1 + ay * dstep1; break; // used by kothello
|
||||
case 0x0000: dstep1 = 1; dstep2 = -1 * (HD63484_reg[0xca/2] & 0x0fff) - ax * dstep1; break;
|
||||
case 0x0100: dstep1 = 1; dstep2 = (HD63484_reg[0xca/2] & 0x0fff) - ax * dstep1; break;
|
||||
case 0x0200: dstep1 = -1; dstep2 = -1 * (HD63484_reg[0xca/2] & 0x0fff) + ax * dstep1; break;
|
||||
case 0x0300: dstep1 = -1; dstep2 = (HD63484_reg[0xca/2] & 0x0fff) + ax * dstep1; break;
|
||||
case 0x0400: dstep1 = -1 * (HD63484_reg[0xca/2] & 0x0fff); dstep2 = 1 - ay * dstep1; break;
|
||||
case 0x0500: dstep1 = (HD63484_reg[0xca/2] & 0x0fff); dstep2 = 1 - ay * dstep1; break;
|
||||
case 0x0600: dstep1 = -1 * (HD63484_reg[0xca/2] & 0x0fff); dstep2 = -1 + ay * dstep1; break;
|
||||
case 0x0700: dstep1 = (HD63484_reg[0xca/2] & 0x0fff); dstep2 = -1 + ay * dstep1; break;
|
||||
}
|
||||
|
||||
for (;;)
|
||||
@ -164,13 +171,17 @@ static void docpy(int opcode,int src,int *dst,INT16 _ax,INT16 _ay)
|
||||
switch (opcode & 0x0007)
|
||||
{
|
||||
case 0:
|
||||
HD63484_ram[*dst] = HD63484_ram[src]; break;
|
||||
HD63484_ram[*dst] = HD63484_ram[src];
|
||||
break;
|
||||
case 1:
|
||||
HD63484_ram[*dst] |= HD63484_ram[src]; break;
|
||||
HD63484_ram[*dst] |= HD63484_ram[src];
|
||||
break;
|
||||
case 2:
|
||||
HD63484_ram[*dst] &= HD63484_ram[src]; break;
|
||||
HD63484_ram[*dst] &= HD63484_ram[src];
|
||||
break;
|
||||
case 3:
|
||||
HD63484_ram[*dst] ^= HD63484_ram[src]; break;
|
||||
HD63484_ram[*dst] ^= HD63484_ram[src];
|
||||
break;
|
||||
case 4:
|
||||
if (HD63484_ram[*dst] == (ccmp & 0xff))
|
||||
HD63484_ram[*dst] = HD63484_ram[src];
|
||||
@ -194,13 +205,13 @@ static void docpy(int opcode,int src,int *dst,INT16 _ax,INT16 _ay)
|
||||
if (ay == 0) break;
|
||||
if (_ay > 0)
|
||||
{
|
||||
src = (src - (HD63484_reg[0xca/2] & 0x0fff) * 2) & (HD63484_RAM_SIZE-1);
|
||||
src = (src - (HD63484_reg[0xca/2] & 0x0fff)) & (HD63484_RAM_SIZE-1);
|
||||
*dst = (*dst + dstep1) & (HD63484_RAM_SIZE-1);
|
||||
ay--;
|
||||
}
|
||||
else
|
||||
{
|
||||
src = (src + (HD63484_reg[0xca/2] & 0x0fff) * 2) & (HD63484_RAM_SIZE-1);
|
||||
src = (src + (HD63484_reg[0xca/2] & 0x0fff)) & (HD63484_RAM_SIZE-1);
|
||||
*dst = (*dst + dstep1) & (HD63484_RAM_SIZE-1);
|
||||
ay++;
|
||||
}
|
||||
@ -228,14 +239,14 @@ static void docpy(int opcode,int src,int *dst,INT16 _ax,INT16 _ay)
|
||||
ay = _ay;
|
||||
if (_ax < 0)
|
||||
{
|
||||
src = (src - 1 + ay * (HD63484_reg[0xca/2] & 0x0fff) * 2) & (HD63484_RAM_SIZE-1);
|
||||
src = (src - 1 + ay * (HD63484_reg[0xca/2] & 0x0fff)) & (HD63484_RAM_SIZE-1);
|
||||
*dst = (*dst + dstep2) & (HD63484_RAM_SIZE-1);
|
||||
if (ax == 0) break;
|
||||
ax++;
|
||||
}
|
||||
else
|
||||
{
|
||||
src = (src + 1 - ay * (HD63484_reg[0xca/2] & 0x0fff) * 2) & (HD63484_RAM_SIZE-1);
|
||||
src = (src + 1 - ay * (HD63484_reg[0xca/2] & 0x0fff)) & (HD63484_RAM_SIZE-1);
|
||||
*dst = (*dst + dstep2) & (HD63484_RAM_SIZE-1);
|
||||
if (ax == 0) break;
|
||||
ax--;
|
||||
@ -246,14 +257,14 @@ static void docpy(int opcode,int src,int *dst,INT16 _ax,INT16 _ay)
|
||||
ax = _ax;
|
||||
if (_ay < 0)
|
||||
{
|
||||
src = (src + (HD63484_reg[0xca/2] & 0x0fff) * 2 - ax) & (HD63484_RAM_SIZE-1);
|
||||
src = (src + (HD63484_reg[0xca/2] & 0x0fff) - ax) & (HD63484_RAM_SIZE-1);
|
||||
*dst = (*dst + dstep2) & (HD63484_RAM_SIZE-1);
|
||||
if (ay == 0) break;
|
||||
ay++;
|
||||
}
|
||||
else
|
||||
{
|
||||
src = (src - (HD63484_reg[0xca/2] & 0x0fff) * 2 - ax) & (HD63484_RAM_SIZE-1);
|
||||
src = (src - (HD63484_reg[0xca/2] & 0x0fff) - ax) & (HD63484_RAM_SIZE-1);
|
||||
*dst = (*dst + dstep2) & (HD63484_RAM_SIZE-1);
|
||||
if (ay == 0) break;
|
||||
ay--;
|
||||
@ -262,38 +273,287 @@ static void docpy(int opcode,int src,int *dst,INT16 _ax,INT16 _ay)
|
||||
}
|
||||
}
|
||||
|
||||
static int org_first_pixel(int _org_dpd)
|
||||
{
|
||||
int gbm = (HD63484_reg[0x02/2] & 0x700) >> 8;
|
||||
|
||||
switch (gbm)
|
||||
{
|
||||
case 0:
|
||||
return (_org_dpd & 0x0f);
|
||||
case 1:
|
||||
return (_org_dpd & 0x0e) >> 1;
|
||||
case 2:
|
||||
return (_org_dpd & 0x0c) >> 2;
|
||||
case 3:
|
||||
return (_org_dpd & 0x08) >> 3;
|
||||
case 4:
|
||||
return 0;
|
||||
|
||||
#define PLOT(addr,OPM) \
|
||||
switch (OPM) \
|
||||
{ \
|
||||
case 0: \
|
||||
HD63484_ram[addr] = cl0; break; \
|
||||
case 1: \
|
||||
HD63484_ram[addr] |= cl0; break; \
|
||||
case 2: \
|
||||
HD63484_ram[addr] &= cl0; break; \
|
||||
case 3: \
|
||||
HD63484_ram[addr] ^= cl0; break; \
|
||||
case 4: \
|
||||
if (HD63484_ram[addr] == (ccmp & 0xff)) \
|
||||
HD63484_ram[addr] = cl0; \
|
||||
break; \
|
||||
case 5: \
|
||||
if (HD63484_ram[addr] != (ccmp & 0xff)) \
|
||||
HD63484_ram[addr] = cl0; \
|
||||
break; \
|
||||
case 6: \
|
||||
if (HD63484_ram[addr] < (cl0 & 0xff)) \
|
||||
HD63484_ram[addr] = cl0; \
|
||||
break; \
|
||||
case 7: \
|
||||
if (HD63484_ram[addr] > (cl0 & 0xff)) \
|
||||
HD63484_ram[addr] = cl0; \
|
||||
break; \
|
||||
} \
|
||||
default:
|
||||
logerror ("Graphic bit mode not supported\n");
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
static void dot(int x, int y, int opm, UINT16 color)
|
||||
{
|
||||
int dst, x_int, x_mod, bpp;
|
||||
UINT16 color_shifted, bitmask, bitmask_shifted;
|
||||
|
||||
x += org_first_pixel(org_dpd);
|
||||
|
||||
switch ((HD63484_reg[0x02/2] & 0x700) >> 8)
|
||||
{
|
||||
case 0:
|
||||
bpp = 1;
|
||||
bitmask = 0x0001;
|
||||
break;
|
||||
case 1:
|
||||
bpp = 2;
|
||||
bitmask = 0x0003;
|
||||
break;
|
||||
case 2:
|
||||
bpp = 4;
|
||||
bitmask = 0x000f;
|
||||
break;
|
||||
case 3:
|
||||
bpp = 8;
|
||||
bitmask = 0x00ff;
|
||||
break;
|
||||
case 4:
|
||||
bpp = 16;
|
||||
bitmask = 0xffff;
|
||||
break;
|
||||
|
||||
default:
|
||||
bpp = 0;
|
||||
bitmask = 0x0000;
|
||||
logerror ("Graphic bit mode not supported\n");
|
||||
}
|
||||
|
||||
if (x >= 0)
|
||||
{
|
||||
x_int = x / (16 / bpp);
|
||||
x_mod = x % (16 / bpp);
|
||||
}
|
||||
else
|
||||
{
|
||||
x_int = x / (16 / bpp);
|
||||
x_mod = -1 * (x % (16 / bpp));
|
||||
if (x_mod) {
|
||||
x_int--;
|
||||
x_mod = (16 / bpp) - x_mod;
|
||||
}
|
||||
}
|
||||
color &= bitmask;
|
||||
|
||||
bitmask_shifted = bitmask << (x_mod * bpp);
|
||||
color_shifted = color << (x_mod * bpp);
|
||||
|
||||
dst = (org + x_int - y * (HD63484_reg[0xca/2] & 0x0fff)) & (HD63484_RAM_SIZE-1);
|
||||
|
||||
switch (opm)
|
||||
{
|
||||
case 0:
|
||||
HD63484_ram[dst] = (HD63484_ram[dst] & ~bitmask_shifted) | color_shifted;
|
||||
break;
|
||||
case 1:
|
||||
HD63484_ram[dst] = HD63484_ram[dst] | color_shifted;
|
||||
break;
|
||||
case 2:
|
||||
HD63484_ram[dst] = HD63484_ram[dst] & ((HD63484_ram[dst] & ~bitmask_shifted) | color_shifted);
|
||||
break;
|
||||
case 3:
|
||||
HD63484_ram[dst] = HD63484_ram[dst] ^ color_shifted;
|
||||
break;
|
||||
case 4:
|
||||
if (get_pixel(x,y) == (ccmp & bitmask))
|
||||
HD63484_ram[dst] = (HD63484_ram[dst] & ~bitmask_shifted) | color_shifted;
|
||||
break;
|
||||
case 5:
|
||||
if (get_pixel(x,y) != (ccmp & bitmask))
|
||||
HD63484_ram[dst] = (HD63484_ram[dst] & ~bitmask_shifted) | color_shifted;
|
||||
break;
|
||||
case 6:
|
||||
if (get_pixel(x,y) < (cl0 & bitmask))
|
||||
HD63484_ram[dst] = (HD63484_ram[dst] & ~bitmask_shifted) | color_shifted;
|
||||
break;
|
||||
case 7:
|
||||
if (get_pixel(x,y) > (cl0 & bitmask))
|
||||
HD63484_ram[dst] = (HD63484_ram[dst] & ~bitmask_shifted) | color_shifted;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static int get_pixel(int x,int y)
|
||||
{
|
||||
int dst, x_int, x_mod, bpp;
|
||||
UINT16 bitmask, bitmask_shifted;
|
||||
|
||||
switch ((HD63484_reg[0x02/2] & 0x700) >> 8)
|
||||
{
|
||||
case 0:
|
||||
bpp = 1;
|
||||
bitmask = 0x0001;
|
||||
break;
|
||||
case 1:
|
||||
bpp = 2;
|
||||
bitmask = 0x0003;
|
||||
break;
|
||||
case 2:
|
||||
bpp = 4;
|
||||
bitmask = 0x000f;
|
||||
break;
|
||||
case 3:
|
||||
bpp = 8;
|
||||
bitmask = 0x00ff;
|
||||
break;
|
||||
case 4:
|
||||
bpp = 16;
|
||||
bitmask = 0xffff;
|
||||
break;
|
||||
|
||||
default:
|
||||
bpp = 0;
|
||||
bitmask = 0x0000;
|
||||
logerror ("Graphic bit mode not supported\n");
|
||||
}
|
||||
if (x >= 0)
|
||||
{
|
||||
x_int = x / (16 / bpp);
|
||||
x_mod = x % (16 / bpp);
|
||||
}
|
||||
else
|
||||
{
|
||||
x_int = x / (16 / bpp);
|
||||
x_mod = -1 * (x % (16 / bpp));
|
||||
if (x_mod) {
|
||||
x_int--;
|
||||
x_mod = (16 / bpp) - x_mod;
|
||||
}
|
||||
}
|
||||
|
||||
bitmask_shifted = bitmask << (x_mod * bpp);
|
||||
|
||||
dst = (org + x_int - y * (HD63484_reg[0xca/2] & 0x0fff)) & (HD63484_RAM_SIZE-1);
|
||||
|
||||
return ((HD63484_ram[dst] & bitmask_shifted) >> (x_mod * bpp));
|
||||
}
|
||||
|
||||
static void agcpy(int opcode,int src_x,int src_y,int dst_x,int dst_y,INT16 _ax,INT16 _ay)
|
||||
{
|
||||
int step1_x,step1_y,step2_x,step2_y;
|
||||
int ax = _ax;
|
||||
int ay = _ay;
|
||||
int xxs = src_x;
|
||||
int yys = src_y;
|
||||
int xxd = dst_x;
|
||||
int yyd = dst_y;
|
||||
|
||||
switch (opcode & 0x0700)
|
||||
{
|
||||
default:
|
||||
case 0x0000: step1_x = 1; step1_y = 0; step2_x = -ax; step2_y = 1; break;
|
||||
case 0x0100: step1_x = 1; step1_y = 0; step2_x = -ax; step2_y = -1; break;
|
||||
case 0x0200: step1_x = -1; step1_y = 0; step2_x = ax; step2_y = 1; break;
|
||||
case 0x0300: step1_x = -1; step1_y = 0; step2_x = ax; step2_y = -1; break;
|
||||
case 0x0400: step1_x = 0; step1_y = 1; step2_x = 1; step2_y = ay; break;
|
||||
case 0x0500: step1_x = 0; step1_y = -1; step2_x = 1; step2_y = -ay; break;
|
||||
case 0x0600: step1_x = 0; step1_y = 1; step2_x = -1; step2_y = ay; break;
|
||||
case 0x0700: step1_x = 0; step1_y = -1; step2_x = -1; step2_y = -ay; break;
|
||||
}
|
||||
|
||||
for (;;)
|
||||
{
|
||||
for (;;)
|
||||
{
|
||||
dot(xxd,yyd,opcode & 0x0007,get_pixel(xxs,yys));
|
||||
|
||||
if (opcode & 0x0800)
|
||||
{
|
||||
if (ay == 0) break;
|
||||
if (_ay > 0)
|
||||
{
|
||||
yys++;
|
||||
xxd += step1_x;
|
||||
yyd += step1_y;
|
||||
ay--;
|
||||
}
|
||||
else
|
||||
{
|
||||
yys--;
|
||||
xxd += step1_x;
|
||||
yyd += step1_y;
|
||||
ay++;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
if (ax == 0) break;
|
||||
else if (ax > 0)
|
||||
{
|
||||
xxs++;
|
||||
xxd += step1_x;
|
||||
yyd += step1_y;
|
||||
ax--;
|
||||
}
|
||||
else
|
||||
{
|
||||
xxs--;
|
||||
xxd += step1_x;
|
||||
yyd += step1_y;
|
||||
ax++;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (opcode & 0x0800)
|
||||
{
|
||||
ay = _ay;
|
||||
if (_ax < 0)
|
||||
{
|
||||
xxs--;
|
||||
yys -= ay;
|
||||
xxd += step2_x;
|
||||
yyd += step2_y;
|
||||
if (ax == 0) break;
|
||||
ax++;
|
||||
}
|
||||
else
|
||||
{
|
||||
xxs++;
|
||||
yys += ay;
|
||||
xxd += step2_x;
|
||||
yyd += step2_y;
|
||||
if (ax == 0) break;
|
||||
ax--;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
ax = _ax;
|
||||
if (_ay < 0)
|
||||
{
|
||||
xxs -= ax;
|
||||
yys--;
|
||||
xxd += step2_x;
|
||||
yyd += step2_y;
|
||||
if (ay == 0) break;
|
||||
ay++;
|
||||
}
|
||||
else
|
||||
{
|
||||
xxs -= ax;
|
||||
yys++;
|
||||
xxd += step2_x;
|
||||
yyd += step2_y;
|
||||
if (ay == 0) break;
|
||||
ay--;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void HD63484_command_w(UINT16 cmd)
|
||||
{
|
||||
@ -324,6 +584,7 @@ static void HD63484_command_w(UINT16 cmd)
|
||||
|
||||
if (fifo[0] == 0x0400) { /* ORG */
|
||||
org = ((fifo[1] & 0x00ff) << 12) | ((fifo[2] & 0xfff0) >> 4);
|
||||
org_dpd = fifo[2] & 0x000f;
|
||||
}
|
||||
else if ((fifo[0] & 0xffe0) == 0x0800) /* WPR */
|
||||
{
|
||||
@ -333,8 +594,42 @@ static void HD63484_command_w(UINT16 cmd)
|
||||
cl1 = fifo[1];
|
||||
else if (fifo[0] == 0x0802)
|
||||
ccmp = fifo[1];
|
||||
else if (fifo[0] == 0x0803)
|
||||
edg = fifo[1];
|
||||
else if (fifo[0] == 0x0804)
|
||||
mask = fifo[1];
|
||||
else if (fifo[0] == 0x0805)
|
||||
{
|
||||
ppy = (fifo[1] & 0xf000) >> 12;
|
||||
pzcy = (fifo[1] & 0x0f00) >> 8;
|
||||
ppx = (fifo[1] & 0x00f0) >> 4;
|
||||
pzcs = (fifo[1] & 0x000f) >> 0;
|
||||
}
|
||||
else if (fifo[0] == 0x0806)
|
||||
{
|
||||
psy = (fifo[1] & 0xf000) >> 12;
|
||||
psx = (fifo[1] & 0x00f0) >> 4;
|
||||
}
|
||||
else if (fifo[0] == 0x0807)
|
||||
{
|
||||
pey = (fifo[1] & 0xf000) >> 12;
|
||||
pzy = (fifo[1] & 0x0f00) >> 8;
|
||||
pex = (fifo[1] & 0x00f0) >> 4;
|
||||
pzx = (fifo[1] & 0x000f) >> 0;
|
||||
}
|
||||
else if (fifo[0] == 0x0808)
|
||||
xmin = fifo[1];
|
||||
else if (fifo[0] == 0x0809)
|
||||
ymin = fifo[1];
|
||||
else if (fifo[0] == 0x080a)
|
||||
xmax = fifo[1];
|
||||
else if (fifo[0] == 0x080b)
|
||||
ymax = fifo[1];
|
||||
else if (fifo[0] == 0x080c)
|
||||
{
|
||||
rwp = (rwp & 0x00fff) | ((fifo[1] & 0x00ff) << 12);
|
||||
rwp_dn = (fifo[1] & 0xc000) >> 14;
|
||||
}
|
||||
else if (fifo[0] == 0x080d)
|
||||
rwp = (rwp & 0xff000) | ((fifo[1] & 0xfff0) >> 4);
|
||||
else
|
||||
@ -346,26 +641,17 @@ logerror("unsupported register\n");
|
||||
}
|
||||
else if (fifo[0] == 0x4400) /* RD */
|
||||
{
|
||||
readfifo = HD63484_ram[2*rwp] | (HD63484_ram[2*rwp+1] << 8);
|
||||
rwp = (rwp + 1) & (HD63484_RAM_SIZE/2-1);
|
||||
readfifo = HD63484_ram[rwp];
|
||||
rwp = (rwp + 1) & (HD63484_RAM_SIZE-1);
|
||||
}
|
||||
else if (fifo[0] == 0x4800) /* WT */
|
||||
{
|
||||
HD63484_ram[2*rwp] = fifo[1] & 0x00ff ;
|
||||
HD63484_ram[2*rwp+1] = (fifo[1] & 0xff00) >> 8;
|
||||
rwp = (rwp + 1) & (HD63484_RAM_SIZE/2-1);
|
||||
HD63484_ram[rwp] = fifo[1];
|
||||
rwp = (rwp + 1) & (HD63484_RAM_SIZE-1);
|
||||
}
|
||||
else if (fifo[0] == 0x5800) /* CLR */
|
||||
{
|
||||
int ax = 2*fifo[2];
|
||||
|
||||
rwp *= 2;
|
||||
if (fifo[2] & 0x8000) { rwp += 1; ax -= 1; } else { ax += 1; }
|
||||
|
||||
doclr(fifo[0],fifo[1],&rwp,ax,fifo[3]);
|
||||
|
||||
if (fifo[2] & 0x8000) rwp -= 1;
|
||||
rwp /= 2;
|
||||
doclr16(fifo[0],fifo[1],&rwp,fifo[2],fifo[3]);
|
||||
|
||||
/*
|
||||
{
|
||||
@ -378,15 +664,7 @@ logerror("unsupported register\n");
|
||||
}
|
||||
else if ((fifo[0] & 0xfffc) == 0x5c00) /* SCLR */
|
||||
{
|
||||
int ax = 2*fifo[2];
|
||||
|
||||
rwp *= 2;
|
||||
if (fifo[2] & 0x8000) { rwp += 1; ax -= 1; } else { ax += 1; }
|
||||
|
||||
doclr(fifo[0],fifo[1],&rwp,ax,fifo[3]);
|
||||
|
||||
if (fifo[2] & 0x8000) rwp -= 1;
|
||||
rwp /= 2;
|
||||
doclr16(fifo[0],fifo[1],&rwp,fifo[2],fifo[3]);
|
||||
|
||||
/*
|
||||
{
|
||||
@ -399,17 +677,7 @@ logerror("unsupported register\n");
|
||||
}
|
||||
else if ((fifo[0] & 0xf0ff) == 0x6000) /* CPY */
|
||||
{
|
||||
int src,ax;
|
||||
|
||||
ax = 2*fifo[3];
|
||||
src = (((fifo[1] & 0x00ff) << 12) | ((fifo[2] & 0xfff0) >> 4))*2;
|
||||
rwp *= 2;
|
||||
if (fifo[3] & 0x8000) { rwp += 1; src += 1; ax -= 1; } else { ax += 1; }
|
||||
|
||||
docpy(fifo[0],src,&rwp,ax,fifo[4]);
|
||||
|
||||
if (fifo[3] & 0x8000) rwp -= 1;
|
||||
rwp /= 2;
|
||||
docpy16(fifo[0],((fifo[1] & 0x00ff) << 12) | ((fifo[2] & 0xfff0) >> 4),&rwp,fifo[3],fifo[4]);
|
||||
|
||||
/*
|
||||
{
|
||||
@ -422,17 +690,7 @@ logerror("unsupported register\n");
|
||||
}
|
||||
else if ((fifo[0] & 0xf0fc) == 0x7000) /* SCPY */
|
||||
{
|
||||
int src,ax;
|
||||
|
||||
ax = 2*fifo[3];
|
||||
src = (((fifo[1] & 0x00ff) << 12) | ((fifo[2] & 0xfff0) >> 4))*2;
|
||||
rwp *= 2;
|
||||
if (fifo[3] & 0x8000) { rwp += 1; src += 1; ax -= 1; } else { ax += 1; }
|
||||
|
||||
docpy(fifo[0],src,&rwp,ax,fifo[4]);
|
||||
|
||||
if (fifo[3] & 0x8000) rwp -= 1;
|
||||
rwp /= 2;
|
||||
docpy16(fifo[0],((fifo[1] & 0x00ff) << 12) | ((fifo[2] & 0xfff0) >> 4),&rwp,fifo[3],fifo[4]);
|
||||
|
||||
/*
|
||||
{
|
||||
@ -448,12 +706,10 @@ logerror("unsupported register\n");
|
||||
cpx = fifo[1];
|
||||
cpy = fifo[2];
|
||||
}
|
||||
// else if ((fifo[0] & 0xff00) == 0x8800) /* ALINE */
|
||||
else if ((fifo[0] & 0xfff8) == 0x8800) /* ALINE */
|
||||
{
|
||||
INT16 ex,ey,sx,sy;
|
||||
INT16 ax,ay;
|
||||
int dst;
|
||||
|
||||
sx = cpx;
|
||||
sy = cpy;
|
||||
@ -467,8 +723,7 @@ logerror("unsupported register\n");
|
||||
{
|
||||
while (ax)
|
||||
{
|
||||
dst = (2*org + cpx - cpy * (HD63484_reg[0xca/2] & 0x0fff) * 2) & (HD63484_RAM_SIZE-1);
|
||||
PLOT(dst,fifo[0] & 0x0007)
|
||||
dot(cpx,cpy,fifo[0] & 0x0007,cl0);
|
||||
|
||||
if (ax > 0)
|
||||
{
|
||||
@ -487,8 +742,7 @@ logerror("unsupported register\n");
|
||||
{
|
||||
while (ay)
|
||||
{
|
||||
dst = (2*org + cpx - cpy * (HD63484_reg[0xca/2] & 0x0fff) * 2) & (HD63484_RAM_SIZE-1);
|
||||
PLOT(dst,fifo[0] & 0x0007)
|
||||
dot(cpx,cpy,fifo[0] & 0x0007,cl0);
|
||||
|
||||
if (ay > 0)
|
||||
{
|
||||
@ -504,31 +758,31 @@ logerror("unsupported register\n");
|
||||
}
|
||||
}
|
||||
}
|
||||
// else if ((fifo[0] & 0xff00) == 0x9000) /* ARCT */
|
||||
else if ((fifo[0] & 0xfff8) == 0x9000) /* ARCT */
|
||||
{
|
||||
INT16 pcx,pcy;
|
||||
INT16 ax,ay;
|
||||
int dst;
|
||||
INT16 ax,ay,xx,yy;
|
||||
|
||||
pcx = fifo[1];
|
||||
pcy = fifo[2];
|
||||
dst = (2*org + cpx - cpy * (HD63484_reg[0xca/2] & 0x0fff) * 2) & (HD63484_RAM_SIZE-1);
|
||||
|
||||
xx = cpx;
|
||||
yy = cpy;
|
||||
|
||||
ax = pcx - cpx;
|
||||
for (;;)
|
||||
{
|
||||
PLOT(dst,fifo[0] & 0x0007)
|
||||
dot(xx,yy,fifo[0] & 0x0007,cl0);
|
||||
|
||||
if (ax == 0) break;
|
||||
else if (ax > 0)
|
||||
{
|
||||
dst = (dst + 1) & (HD63484_RAM_SIZE-1);
|
||||
xx++;
|
||||
ax--;
|
||||
}
|
||||
else
|
||||
{
|
||||
dst = (dst - 1) & (HD63484_RAM_SIZE-1);
|
||||
xx--;
|
||||
ax++;
|
||||
}
|
||||
}
|
||||
@ -536,17 +790,17 @@ logerror("unsupported register\n");
|
||||
ay = pcy - cpy;
|
||||
for (;;)
|
||||
{
|
||||
PLOT(dst,fifo[0] & 0x0007)
|
||||
dot(xx,yy,fifo[0] & 0x0007,cl0);
|
||||
|
||||
if (ay == 0) break;
|
||||
else if (ay > 0)
|
||||
{
|
||||
dst = (dst - (HD63484_reg[0xca/2] & 0x0fff) * 2) & (HD63484_RAM_SIZE-1);
|
||||
yy++;
|
||||
ay--;
|
||||
}
|
||||
else
|
||||
{
|
||||
dst = (dst + (HD63484_reg[0xca/2] & 0x0fff) * 2) & (HD63484_RAM_SIZE-1);
|
||||
yy--;
|
||||
ay++;
|
||||
}
|
||||
}
|
||||
@ -554,17 +808,17 @@ logerror("unsupported register\n");
|
||||
ax = cpx - pcx;
|
||||
for (;;)
|
||||
{
|
||||
PLOT(dst,fifo[0] & 0x0007)
|
||||
dot(xx,yy,fifo[0] & 0x0007,cl0);
|
||||
|
||||
if (ax == 0) break;
|
||||
else if (ax > 0)
|
||||
{
|
||||
dst = (dst + 1) & (HD63484_RAM_SIZE-1);
|
||||
xx++;
|
||||
ax--;
|
||||
}
|
||||
else
|
||||
{
|
||||
dst = (dst - 1) & (HD63484_RAM_SIZE-1);
|
||||
xx--;
|
||||
ax++;
|
||||
}
|
||||
}
|
||||
@ -572,49 +826,49 @@ logerror("unsupported register\n");
|
||||
ay = cpy - pcy;
|
||||
for (;;)
|
||||
{
|
||||
PLOT(dst,fifo[0] & 0x0007)
|
||||
dot(xx,yy,fifo[0] & 0x0007,cl0);
|
||||
|
||||
if (ay == 0) break;
|
||||
else if (ay > 0)
|
||||
{
|
||||
dst = (dst - (HD63484_reg[0xca/2] & 0x0fff) * 2) & (HD63484_RAM_SIZE-1);
|
||||
yy++;
|
||||
ay--;
|
||||
}
|
||||
else
|
||||
{
|
||||
dst = (dst + (HD63484_reg[0xca/2] & 0x0fff) * 2) & (HD63484_RAM_SIZE-1);
|
||||
yy--;
|
||||
ay++;
|
||||
}
|
||||
}
|
||||
}
|
||||
// else if ((fifo[0] & 0xff00) == 0xc000) /* AFRCT */
|
||||
else if ((fifo[0] & 0xfff8) == 0xc000) /* AFRCT */
|
||||
{
|
||||
INT16 pcx,pcy;
|
||||
INT16 ax,ay;
|
||||
int dst;
|
||||
INT16 ax,ay,xx,yy;
|
||||
|
||||
|
||||
pcx = fifo[1];
|
||||
pcy = fifo[2];
|
||||
ax = pcx - cpx;
|
||||
ay = pcy - cpy;
|
||||
dst = (2*org + cpx - cpy * (HD63484_reg[0xca/2] & 0x0fff) * 2) & (HD63484_RAM_SIZE-1);
|
||||
xx = cpx;
|
||||
yy = cpy;
|
||||
|
||||
for (;;)
|
||||
{
|
||||
for (;;)
|
||||
{
|
||||
PLOT(dst,fifo[0] & 0x0007)
|
||||
dot(xx,yy,fifo[0] & 0x0007,cl0);
|
||||
|
||||
if (ax == 0) break;
|
||||
else if (ax > 0)
|
||||
{
|
||||
dst = (dst + 1) & (HD63484_RAM_SIZE-1);
|
||||
xx++;
|
||||
ax--;
|
||||
}
|
||||
else
|
||||
{
|
||||
dst = (dst - 1) & (HD63484_RAM_SIZE-1);
|
||||
xx--;
|
||||
ax++;
|
||||
}
|
||||
}
|
||||
@ -622,43 +876,30 @@ logerror("unsupported register\n");
|
||||
ax = pcx - cpx;
|
||||
if (pcy < cpy)
|
||||
{
|
||||
dst = (dst + (HD63484_reg[0xca/2] & 0x0fff) * 2 - ax) & (HD63484_RAM_SIZE-1);
|
||||
yy--;
|
||||
xx -= ax;
|
||||
if (ay == 0) break;
|
||||
ay++;
|
||||
}
|
||||
else
|
||||
{
|
||||
dst = (dst - (HD63484_reg[0xca/2] & 0x0fff) * 2 - ax) & (HD63484_RAM_SIZE-1);
|
||||
yy++;
|
||||
xx -= ax;
|
||||
if (ay == 0) break;
|
||||
ay--;
|
||||
}
|
||||
}
|
||||
}
|
||||
// else if ((fifo[0] & 0xff00) == 0xcc00) /* DOT */
|
||||
else if ((fifo[0] & 0xfff8) == 0xcc00) /* DOT */
|
||||
{
|
||||
int dst;
|
||||
|
||||
dst = (2*org + cpx - cpy * (HD63484_reg[0xca/2] & 0x0fff) * 2) & (HD63484_RAM_SIZE-1);
|
||||
|
||||
PLOT(dst,fifo[0] & 0x0007)
|
||||
dot(cpx,cpy,fifo[0] & 0x0007,cl0);
|
||||
}
|
||||
// else if ((fifo[0] & 0xf000) == 0xe000) /* AGCPY */
|
||||
else if ((fifo[0] & 0xf0f8) == 0xe000) /* AGCPY */
|
||||
{
|
||||
INT16 pcx,pcy;
|
||||
int src,dst;
|
||||
agcpy(fifo[0],fifo[1],fifo[2],cpx,cpy,fifo[3],fifo[4]);
|
||||
|
||||
pcx = fifo[1];
|
||||
pcy = fifo[2];
|
||||
|
||||
src = (2*org + pcx - pcy * (HD63484_reg[0xca/2] & 0x0fff) * 2) & (HD63484_RAM_SIZE-1);
|
||||
dst = (2*org + cpx - cpy * (HD63484_reg[0xca/2] & 0x0fff) * 2) & (HD63484_RAM_SIZE-1);
|
||||
|
||||
docpy(fifo[0],src,&dst,fifo[3],fifo[4]);
|
||||
|
||||
cpx = (dst - 2*org) % ((HD63484_reg[0xca/2] & 0x0fff) * 2);
|
||||
cpy = (dst - 2*org) / ((HD63484_reg[0xca/2] & 0x0fff) * 2);
|
||||
cpx += fifo[3];
|
||||
cpy += fifo[4];
|
||||
}
|
||||
else
|
||||
{
|
||||
@ -714,9 +955,6 @@ logerror("%05x: HD63484 read register %02x\n",activecpu_get_pc(),regno);
|
||||
return res;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
static PALETTE_INIT( shanghai )
|
||||
{
|
||||
int i;
|
||||
@ -756,14 +994,14 @@ static VIDEO_UPDATE( shanghai )
|
||||
{
|
||||
int x,y,b;
|
||||
|
||||
|
||||
b = 2 * (((HD63484_reg[0xcc/2] & 0x000f) << 16) + HD63484_reg[0xce/2]);
|
||||
b = ((HD63484_reg[0xcc/2] & 0x000f) << 16) + HD63484_reg[0xce/2];
|
||||
for (y = 0;y < 280;y++)
|
||||
{
|
||||
for (x = 0 ; x<(HD63484_reg[0xca/2] & 0x0fff) * 2 ; x++)
|
||||
for (x = 0 ; x<(HD63484_reg[0xca/2] & 0x0fff) * 2 ; x += 2)
|
||||
{
|
||||
b &= (HD63484_RAM_SIZE-1);
|
||||
*BITMAP_ADDR16(bitmap, y, x) = HD63484_ram[b];
|
||||
*BITMAP_ADDR16(bitmap, y, x) = HD63484_ram[b] & 0x00ff;
|
||||
*BITMAP_ADDR16(bitmap, y, x+1) = (HD63484_ram[b] & 0xff00) >> 8;
|
||||
b++;
|
||||
}
|
||||
}
|
||||
@ -774,18 +1012,20 @@ static VIDEO_UPDATE( shanghai )
|
||||
int h = HD63484_reg[0x96/2] & 0x0fff;
|
||||
int sx = ((HD63484_reg[0x92/2] >> 8) - (HD63484_reg[0x84/2] >> 8)) * 4;
|
||||
int w = (HD63484_reg[0x92/2] & 0xff) * 4;
|
||||
if (sx < 0) sx = 0; /* not sure about this (shangha2 title screen) */
|
||||
if (sx < 0) sx = 0; // not sure about this (shangha2 title screen)
|
||||
|
||||
b = 2 * (((HD63484_reg[0xdc/2] & 0x000f) << 16) + HD63484_reg[0xde/2]);
|
||||
b = (((HD63484_reg[0xdc/2] & 0x000f) << 16) + HD63484_reg[0xde/2]);
|
||||
|
||||
for (y = sy ; y <= sy + h && y < 280 ; y++)
|
||||
{
|
||||
for (x = 0 ; x < (HD63484_reg[0xca/2] & 0x0fff) * 2 ; x++)
|
||||
for (x = 0 ; x < (HD63484_reg[0xca/2] & 0x0fff) * 2 ; x += 2)
|
||||
{
|
||||
b &= (HD63484_RAM_SIZE - 1);
|
||||
if (x <= w && x + sx >= 0 && x + sx < (HD63484_reg[0xca/2] & 0x0fff) * 2)
|
||||
*BITMAP_ADDR16(bitmap, y, x + sx) = HD63484_ram[b];
|
||||
|
||||
{
|
||||
*BITMAP_ADDR16(bitmap, y, x + sx) = HD63484_ram[b] & 0x00ff;
|
||||
*BITMAP_ADDR16(bitmap, y, x + sx + 1) = (HD63484_ram[b] & 0xff00) >> 8;
|
||||
}
|
||||
b++;
|
||||
}
|
||||
}
|
||||
@ -794,7 +1034,6 @@ static VIDEO_UPDATE( shanghai )
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static INTERRUPT_GEN( shanghai_interrupt )
|
||||
{
|
||||
cpunum_set_input_line_and_vector(machine, 0,0,HOLD_LINE,0x80);
|
||||
@ -1194,7 +1433,7 @@ static MACHINE_DRIVER_START( kothello )
|
||||
MDRV_SCREEN_ADD("main", RASTER)
|
||||
MDRV_SCREEN_REFRESH_RATE(30)
|
||||
MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
|
||||
MDRV_SCREEN_SIZE(384, 384)
|
||||
MDRV_SCREEN_SIZE(384, 280)
|
||||
MDRV_SCREEN_VISIBLE_AREA(8, 384-1, 0, 250-1) // Base Screen is 376 pixel
|
||||
|
||||
MDRV_PALETTE_LENGTH(256)
|
||||
@ -1216,8 +1455,6 @@ static MACHINE_DRIVER_START( kothello )
|
||||
SEIBU_SOUND_SYSTEM_ADPCM_INTERFACE
|
||||
MACHINE_DRIVER_END
|
||||
|
||||
|
||||
|
||||
/***************************************************************************
|
||||
|
||||
Game driver(s)
|
||||
@ -1314,3 +1551,4 @@ ROM_END
|
||||
GAME( 1988, shanghai, 0, shanghai, shanghai, 0, ROT0, "Sunsoft", "Shanghai (Japan)", GAME_IMPERFECT_GRAPHICS )
|
||||
GAME( 1989, shangha2, 0, shangha2, shangha2, 0, ROT0, "Sunsoft", "Shanghai II (Japan)", 0 )
|
||||
GAME( 1990, kothello, 0, kothello, kothello, 0, ROT0, "Success", "Kyuukyoku no Othello", GAME_IMPERFECT_GRAPHICS )
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user