static int c128_dma_read_color (int offset)
{
UINT8 c64_port6510 = (UINT8) cpunum_get_info_int(0, CPUINFO_INT_M6510_PORT);
if (c64mode)
return c64_colorram[offset & 0x3ff] & 0xf;
else
return c64_colorram[(offset & 0x3ff)|((c64_port6510&0x3)<<10)] & 0xf;
}
static void sp_set_status(UINT32 status)
{
if (status & 0x1)
{
//cpu_trigger(6789);
cpunum_set_input_line(1, INPUT_LINE_HALT, ASSERT_LINE);
cpunum_set_info_int(1, CPUINFO_INT_REGISTER + RSP_SR, cpunum_get_info_int(1, CPUINFO_INT_REGISTER + RSP_SR) | RSP_STATUS_HALT);
//rsp_sp_status |= SP_STATUS_HALT;
}
if (status & 0x2)
{
//rsp_sp_status |= SP_STATUS_BROKE;
cpunum_set_info_int(1, CPUINFO_INT_REGISTER + RSP_SR, cpunum_get_info_int(1, CPUINFO_INT_REGISTER + RSP_SR) | RSP_STATUS_BROKE);
if (cpunum_get_info_int(1, CPUINFO_INT_REGISTER + RSP_SR) & RSP_STATUS_INTR_BREAK)
{
signal_rcp_interrupt(SP_INTERRUPT);
}
}
}
/*
* only 14 address lines
* a15 and a14 portlines
* 0x1000-0x1fff, 0x9000-0x9fff char rom
*/
static int c128_dma_read(int offset)
{
UINT8 c64_port6510 = (UINT8) cpunum_get_info_int(0, CPUINFO_INT_M6510_PORT);
/* main memory configuration to include */
if (c64mode)
{
if (!c64_game && c64_exrom)
{
if (offset < 0x3000)
return c64_memory[offset];
return c64_romh[offset & 0x1fff];
}
if (((c64_vicaddr - c64_memory + offset) & 0x7000) == 0x1000)
return c64_chargen[offset & 0xfff];
return c64_vicaddr[offset];
}
if ( !(c64_port6510&4)
&& (((c128_vicaddr - c64_memory + offset) & 0x7000) == 0x1000) )
return c128_chargen[offset & 0xfff];
return c128_vicaddr[offset];
}
void c128_bankswitch_64 (int reset)
{
static int old, exrom, game;
int data, loram, hiram, charen;
read8_handler rh;
if (!c64mode)
return;
data = (UINT8) cpunum_get_info_int(0, CPUINFO_INT_M6510_PORT) & 7;
if ((data == old)&&(exrom==c64_exrom)&&(game==c64_game)&&!reset)
return;
DBG_LOG (1, "bankswitch", ("%d\n", data & 7));
loram = (data & 1) ? 1 : 0;
hiram = (data & 2) ? 1 : 0;
charen = (data & 4) ? 1 : 0;
if ((!c64_game && c64_exrom)
|| (loram && hiram && !c64_exrom))
{
memory_set_bankptr(8, c64_roml);
}
else
{
memory_set_bankptr(8, c64_memory + 0x8000);
}
if ((!c64_game && c64_exrom && hiram)
|| (!c64_exrom))
{
memory_set_bankptr(9, c64_romh);
}
else if (loram && hiram)
{
memory_set_bankptr(9, c64_basic);
}
else
{
memory_set_bankptr(9, c64_memory + 0xa000);
}
if ((!c64_game && c64_exrom)
|| (charen && (loram || hiram)))
{
rh = c128_read_io;
c128_write_io = 1;
}
else
{
rh = MRA8_BANK5;
c128_write_io = 0;
if ((!charen && (loram || hiram)))
memory_set_bankptr(13, c64_chargen);
else
memory_set_bankptr(13, c64_memory + 0xd000);
}
c128_set_m8502_read_handler(0xd000, 0xdfff, rh);
if (!c64_game && c64_exrom)
{
memory_set_bankptr(14, c64_romh);
memory_set_bankptr(15, c64_romh+0x1f00);
memory_set_bankptr(16, c64_romh+0x1f05);
}
else
{
if (hiram)
{
memory_set_bankptr(14, c64_kernal);
memory_set_bankptr(15, c64_kernal+0x1f00);
memory_set_bankptr(16, c64_kernal+0x1f05);
}
else
{
memory_set_bankptr(14, c64_memory + 0xe000);
memory_set_bankptr(15, c64_memory + 0xff00);
memory_set_bankptr(16, c64_memory + 0xff05);
}
}
old = data;
exrom= c64_exrom;
game=c64_game;
}
