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macpwrbk030.cpp: Turned off Target Disk Mode and fixed 1bpp boot screen drawing on all machines. [R. Belmont]

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This commit is contained in:
arbee 2020-10-25 17:50:48 -04:00
parent 67ac7f437f
commit 73deeeb966
1 changed files with 25 additions and 22 deletions
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47
src/mame/drivers/macpwrbk030.cpp
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@ -390,14 +390,19 @@ u32 macpb030_state::screen_update_macpb160(screen_device &screen, bitmap_ind16 &
{ {
u16 *line = &bitmap.pix(y); u16 *line = &bitmap.pix(y);
for (int x = 0; x < 640 / 4; x++) for (int x = 0; x < 640; x+=8)
{ {
uint8_t const pixels = vram8[(y * 160) + (BYTE4_XOR_BE(x))]; u8 const pixels = vram8[(y * 80) + (BYTE4_XOR_BE(x/8))];
static const u16 palette[2] = { 0, 3 };
*line++ = ((pixels >> 6) & 3); *line++ = palette[(pixels >> 7)&1];
*line++ = ((pixels >> 4) & 3); *line++ = palette[(pixels >> 6)&1];
*line++ = ((pixels >> 2) & 3); *line++ = palette[(pixels >> 5)&1];
*line++ = (pixels & 3); *line++ = palette[(pixels >> 4)&1];
*line++ = palette[(pixels >> 3)&1];
*line++ = palette[(pixels >> 2)&1];
*line++ = palette[(pixels >> 1)&1];
*line++ = palette[(pixels & 1)];
} }
} }
return 0; return 0;
@ -407,15 +412,22 @@ u32 macpb030_state::screen_update_macpbwd(screen_device &screen, bitmap_rgb32 &b
{ {
u8 const *vram8 = (uint8_t *)m_vram.target(); u8 const *vram8 = (uint8_t *)m_vram.target();
// vram8 += 0x40000;
for (int y = 0; y < 480; y++) for (int y = 0; y < 480; y++)
{ {
u32 *scanline = &bitmap.pix(y); u32 *line = &bitmap.pix(y);
for (int x = 0; x < 640; x++) for (int x = 0; x < 640; x+=8)
{ {
uint8_t const pixels = vram8[(y * 640) + (BYTE4_XOR_BE(x))]; uint8_t const pixels = vram8[(y * 80) + (BYTE4_XOR_BE(x/8))];
*scanline++ = m_wd_palette[pixels]; static const u32 palette[2] = { 0xffffffff, 0 };
*line++ = palette[(pixels >> 7) & 1];
*line++ = palette[(pixels >> 6) & 1];
*line++ = palette[(pixels >> 5) & 1];
*line++ = palette[(pixels >> 4) & 1];
*line++ = palette[(pixels >> 3) & 1];
*line++ = palette[(pixels >> 2) & 1];
*line++ = palette[(pixels >> 1) & 1];
*line++ = palette[(pixels & 1)];
} }
} }
@ -753,16 +765,7 @@ u8 macpb030_state::mac_via_in_a()
u8 macpb030_state::mac_via_in_b() u8 macpb030_state::mac_via_in_b()
{ {
int val = 0; return 0x08; // flag indicating no Target Disk Mode
// TODO: is this valid for VIA2 PMU machines?
/* video beam in display (! VBLANK && ! HBLANK basically) */
if (m_screen->vpos() >= 480)
val |= 0x40;
// printf("%s VIA1 IN_B = %02x\n", machine().describe_context().c_str(), val);
return val;
} }
void macpb030_state::mac_via_out_a(u8 data) void macpb030_state::mac_via_out_a(u8 data)