static void set_firetrk_service(int enable)
{
/* watchdog is disabled during service mode */
watchdog_enable(!enable);
/* change CPU clock speed according to service switch change */
cpunum_set_clock(0, enable ? FIRETRK_CPU_CLOCK_750KZ : FIRETRK_CPU_CLOCK_1MHZ);
}
static void apple3_update_memory(void)
{
UINT16 bank;
UINT8 page;
if (LOG_MEMORY)
{
logerror("apple3_update_memory(): via_0_b=0x%02x via_1_a=0x0x%02x\n", via_0_b, via_1_a);
}
cpunum_set_clock(0, (via_0_a & 0x80) ? 1000000 : 2000000);
/* bank 2 (0100-01FF) */
if (!(via_0_a & 0x04))
{
if (via_0_b < 0x20)
{
bank = ~0; /* system bank */
page = via_0_b ^ 0x01;
}
else if (via_0_b >= 0xA0)
{
bank = ~0; /* system bank */
page = (via_0_b ^ 0x01) - 0x80;
}
else
{
bank = via_1_a;
page = (via_0_b ^ 0x01) - 0x20;
}
}
else
{
bank = ~0;
page = 0x01;
}
apple3_setbank(2, bank, ((offs_t) page) * 0x100);
/* bank 3 (0200-1FFF) */
apple3_setbank(3, ~0, 0x0200);
/* bank 4 (2000-9FFF) */
apple3_setbank(4, via_1_a, 0x0000);
/* bank 5 (A000-BFFF) */
apple3_setbank(5, ~0, 0x2000);
/* install bank 8 (C000-CFFF) */
if (via_0_a & 0x40)
{
memory_install_read8_handler(0, ADDRESS_SPACE_PROGRAM, 0xC000, 0xC0FF, 0, 0, apple3_c0xx_r);
memory_install_write8_handler(0, ADDRESS_SPACE_PROGRAM, 0xC000, 0xC0FF, 0, 0, apple3_c0xx_w);
}
else
{
memory_install_read8_handler(0, ADDRESS_SPACE_PROGRAM, 0xC000, 0xC0FF, 0, 0, MRA8_BANK8);
if (via_0_a & 0x08)
memory_install_write8_handler(0, ADDRESS_SPACE_PROGRAM, 0xC000, 0xC0FF, 0, 0, MWA8_ROM);
else
memory_install_write8_handler(0, ADDRESS_SPACE_PROGRAM, 0xC000, 0xC0FF, 0, 0, MWA8_BANK8);
apple3_setbank(8, ~0, 0x4000);
}
/* install bank 9 (C100-C4FF) */
if (via_0_a & 0x40)
{
memory_install_read8_handler(0, ADDRESS_SPACE_PROGRAM, 0xC100, 0xC4FF, 0, 0, MRA8_NOP);
memory_install_write8_handler(0, ADDRESS_SPACE_PROGRAM, 0xC100, 0xC4FF, 0, 0, MWA8_NOP);
}
else
{
memory_install_read8_handler(0, ADDRESS_SPACE_PROGRAM, 0xC100, 0xC4FF, 0, 0, MRA8_BANK9);
if (via_0_a & 0x08)
memory_install_write8_handler(0, ADDRESS_SPACE_PROGRAM, 0xC100, 0xC4FF, 0, 0, MWA8_ROM);
else
memory_install_write8_handler(0, ADDRESS_SPACE_PROGRAM, 0xC100, 0xC4FF, 0, 0, MWA8_BANK9);
apple3_setbank(9, ~0, 0x4100);
}
/* install bank 10 (C500-C7FF) */
memory_install_read8_handler(0, ADDRESS_SPACE_PROGRAM, 0xC500, 0xC7FF, 0, 0, MRA8_BANK10);
if (via_0_a & 0x08)
memory_install_write8_handler(0, ADDRESS_SPACE_PROGRAM, 0xC500, 0xC7FF, 0, 0, MWA8_ROM);
else
memory_install_write8_handler(0, ADDRESS_SPACE_PROGRAM, 0xC500, 0xC7FF, 0, 0, MWA8_BANK10);
apple3_setbank(10, ~0, 0x4500);
/* install bank 11 (C800-CFFF) */
if (via_0_a & 0x40)
{
memory_install_read8_handler(0, ADDRESS_SPACE_PROGRAM, 0xC800, 0xCFFF, 0, 0, MRA8_NOP);
memory_install_write8_handler(0, ADDRESS_SPACE_PROGRAM, 0xC800, 0xCFFF, 0, 0, MWA8_NOP);
}
else
{
memory_install_read8_handler(0, ADDRESS_SPACE_PROGRAM, 0xC800, 0xCFFF, 0, 0, MRA8_BANK11);
if (via_0_a & 0x08)
memory_install_write8_handler(0, ADDRESS_SPACE_PROGRAM, 0xC800, 0xCFFF, 0, 0, MWA8_ROM);
else
memory_install_write8_handler(0, ADDRESS_SPACE_PROGRAM, 0xC800, 0xCFFF, 0, 0, MWA8_BANK11);
apple3_setbank(11, ~0, 0x4800);
}
/* install bank 6 (D000-EFFF) */
memory_install_read8_handler(0, ADDRESS_SPACE_PROGRAM, 0xD000, 0xEFFF, 0, 0, MRA8_BANK6);
if (via_0_a & 0x08)
memory_install_write8_handler(0, ADDRESS_SPACE_PROGRAM, 0xD000, 0xEFFF, 0, 0, MWA8_ROM);
else
memory_install_write8_handler(0, ADDRESS_SPACE_PROGRAM, 0xD000, 0xEFFF, 0, 0, MWA8_BANK6);
apple3_setbank(6, ~0, 0x5000);
/* install bank 7 (F000-FFFF) */
memory_install_read8_handler(0, ADDRESS_SPACE_PROGRAM, 0xF000, 0xFFFF, 0, 0, MRA8_BANK7);
if (via_0_a & 0x09)
memory_install_write8_handler(0, ADDRESS_SPACE_PROGRAM, 0xF000, 0xFFFF, 0, 0, MWA8_ROM);
else
memory_install_write8_handler(0, ADDRESS_SPACE_PROGRAM, 0xF000, 0xFFFF, 0, 0, MWA8_BANK7);
if (via_0_a & 0x01)
memory_set_bankptr(7, memory_region(REGION_CPU1));
else
apple3_setbank(7, ~0, 0x7000);
/* reinstall VIA handlers */
memory_install_read8_handler(0, ADDRESS_SPACE_PROGRAM, 0xFFD0, 0xFFDF, 0, 0, via_0_r);
memory_install_write8_handler(0, ADDRESS_SPACE_PROGRAM, 0xFFD0, 0xFFDF, 0, 0, via_0_w);
memory_install_read8_handler(0, ADDRESS_SPACE_PROGRAM, 0xFFE0, 0xFFEF, 0, 0, via_1_r);
memory_install_write8_handler(0, ADDRESS_SPACE_PROGRAM, 0xFFE0, 0xFFEF, 0, 0, via_1_w);
}
