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casio/fp1100.cpp: Fixed build error, more const.

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This commit is contained in:
Vas Crabb 2024-05-17 05:57:26 +10:00
parent 100cc0fbc9
commit a03f4d268d
1 changed files with 33 additions and 29 deletions
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62
src/mame/casio/fp1100.cpp
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@ -6,28 +6,31 @@
Info found at various sites:
Casio FP1000 and FP1100 are "pre-PC" personal computers, with Cassette,
Floppy Disk, Printer and 2 cart/expansion slots. They had 32K ROM, 64K
main RAM, 80x25 text display, 320x200, 640x200, 640x400 graphics display.
Floppy disk is 2x 5 1/4.
Casio FP-1000 and FP-1100 are "pre-PC" personal computers, with
Cassette, Floppy Disk, Printer and two cartridge/expansion slots. They
had 32K ROM, 64K main RAM, 80x25 text display, 320x200, 640x200, 640x400
graphics display. Floppy disk is 2x 5 1/4.
The FP1000 had 16K videoram and monochrome only. The monitor had a switch
to invert the display (swap foreground and background colours).
The FP-1000 had 16K videoram and monochrome only. The monitor had a
switch to invert the display (swap foreground and background colours).
The FP1100 had 48K videoram and 8 colours.
The FP-1100 had 48K videoram and 8 colours.
Processors: Z80 @ 4MHz, uPD7801G @ 2MHz
Came with BASIC built in, and you could run CP/M 2.2 from the floppy disk.
Came with BASIC built in, and you could run CP/M 2.2 from the floppy
disk.
The keyboard is a separate unit. It contains a beeper.
The keyboard is a separate unit. It contains a beeper.
TODO:
- unimplemented instruction PER triggered (can be ignored)
- Display can be interlaced or non-interlaced. Interlaced not emulated.
- Cassette Load is quite complex, using 6 pins of the sub-CPU. Not done.
- subcpu is supposed to be in WAIT except in horizontal blanking period.
WAIT is not emulated in our cpu.
- Memory maps and machine configuration for FP-1000 with reduced VRAM.
- Unimplemented instruction PER triggered (can be ignored)
- Display can be interlaced or non-interlaced. Interlaced not emulated.
- Cassette Load is quite complex, using 6 pins of the sub-CPU. Not
done.
- Sub CPU is supposed to be in WAIT except in horizontal blanking
period. WAIT is not emulated in our cpu.
- Keyboard not working.
- FDC not done.
@ -128,7 +131,7 @@ private:
u8 portc = 0;
}m_upd7801;
required_device<cpu_device> m_maincpu;
required_device<cpu_device> m_subcpu;
required_device<upd7801_device> m_subcpu;
required_device<mc6845_device> m_crtc;
required_region_ptr<u8> m_ipl;
required_shared_ptr<u8> m_wram;
@ -141,20 +144,21 @@ private:
MC6845_UPDATE_ROW( fp1100_state::crtc_update_row )
{
const rgb_t *palette = m_palette->palette()->entry_list_raw();
rgb_t const *const palette = m_palette->palette()->entry_list_raw();
u32 *p = &bitmap.pix(y);
if (BIT(m_upd7801.porta, 4))
{ // green screen
for (u16 x = 0; x < x_count; x++)
{
u16 mem = (((ma+x)<<3) + ra) & 0x3fff;
u8 g = m_videoram[mem];
u16 const mem = (((ma + x) << 3) + ra) & 0x3fff;
u8 const g = m_videoram[mem];
for (u8 i = 0; i < 8; i++)
{
u8 col = BIT(g, i);
if (x == cursor_x) col ^= 1;
*p++ = palette[col<<1];
if (x == cursor_x)
col ^= 1;
*p++ = palette[col << 1];
}
}
}
@ -162,14 +166,15 @@ MC6845_UPDATE_ROW( fp1100_state::crtc_update_row )
{ // RGB screen
for (u16 x = 0; x < x_count; x++)
{
u16 mem = (((ma+x)<<3) + ra) & 0x3fff;
u8 b = m_videoram[mem];
u8 r = m_videoram[mem+0x4000];
u8 g = m_videoram[mem+0x8000];
u16 const mem = (((ma + x) << 3) + ra) & 0x3fff;
u8 const b = m_videoram[mem];
u8 const r = m_videoram[mem + 0x4000];
u8 const g = m_videoram[mem + 0x8000];
for (u8 i = 0; i < 8; i++)
{
u8 col = BIT(r, i) + (BIT(g, i) << 1) + (BIT(b, i) << 2);
if (x == cursor_x) col = m_col_cursor;
u8 col = BIT(r, i) | (BIT(g, i) << 1) | (BIT(b, i) << 2);
if (x == cursor_x)
col = m_col_cursor;
*p++ = palette[col];
}
}
@ -199,8 +204,7 @@ void fp1100_state::irq_mask_w(u8 data)
LOG("%s: Sub IRQ asserted\n",machine().describe_context());
m_sub_irq_status = true;
}
else
if (!BIT(data, 7) && m_sub_irq_status)
else if (!BIT(data, 7) && m_sub_irq_status)
{
m_subcpu->set_input_line(UPD7810_INTF2, CLEAR_LINE);
LOG("%s: Sub IRQ cleared\n",machine().describe_context());
@ -341,7 +345,7 @@ d6 - Centronics strobe
*/
void fp1100_state::portc_w(u8 data)
{
u8 bits = data ^ m_upd7801.portc;
u8 const bits = data ^ m_upd7801.portc;
m_upd7801.portc = data;
if (BIT(bits, 3))