target_phys_addr_t isa_mem_base = 0;
PicState2 *isa_pic;
+static IOPortReadFunc default_ioport_readb, default_ioport_readw, default_ioport_readl;
+static IOPortWriteFunc default_ioport_writeb, default_ioport_writew, default_ioport_writel;
+
+static uint32_t ioport_read(int index, uint32_t address)
+{
+ static IOPortReadFunc *default_func[3] = {
+ default_ioport_readb,
+ default_ioport_readw,
+ default_ioport_readl
+ };
+ IOPortReadFunc *func = ioport_read_table[index][address];
+ if (!func)
+ func = default_func[index];
+ return func(ioport_opaque[address], address);
+}
+
+static void ioport_write(int index, uint32_t address, uint32_t data)
+{
+ static IOPortWriteFunc *default_func[3] = {
+ default_ioport_writeb,
+ default_ioport_writew,
+ default_ioport_writel
+ };
+ IOPortWriteFunc *func = ioport_write_table[index][address];
+ if (!func)
+ func = default_func[index];
+ func(ioport_opaque[address], address, data);
+}
+
static uint32_t default_ioport_readb(void *opaque, uint32_t address)
{
#ifdef DEBUG_UNUSED_IOPORT
static uint32_t default_ioport_readw(void *opaque, uint32_t address)
{
uint32_t data;
- data = ioport_read_table[0][address](ioport_opaque[address], address);
+ data = ioport_read(0, address);
address = (address + 1) & (MAX_IOPORTS - 1);
- data |= ioport_read_table[0][address](ioport_opaque[address], address) << 8;
+ data |= ioport_read(0, address) << 8;
return data;
}
static void default_ioport_writew(void *opaque, uint32_t address, uint32_t data)
{
- ioport_write_table[0][address](ioport_opaque[address], address, data & 0xff);
+ ioport_write(0, address, data & 0xff);
address = (address + 1) & (MAX_IOPORTS - 1);
- ioport_write_table[0][address](ioport_opaque[address], address, (data >> 8) & 0xff);
+ ioport_write(0, address, (data >> 8) & 0xff);
}
static uint32_t default_ioport_readl(void *opaque, uint32_t address)
#endif
}
-static void init_ioports(void)
-{
- int i;
-
- for(i = 0; i < MAX_IOPORTS; i++) {
- ioport_read_table[0][i] = default_ioport_readb;
- ioport_write_table[0][i] = default_ioport_writeb;
- ioport_read_table[1][i] = default_ioport_readw;
- ioport_write_table[1][i] = default_ioport_writew;
- ioport_read_table[2][i] = default_ioport_readl;
- ioport_write_table[2][i] = default_ioport_writel;
- }
-}
-
/* size is the word size in byte */
int register_ioport_read(int start, int length, int size,
IOPortReadFunc *func, void *opaque)
if (loglevel & CPU_LOG_IOPORT)
fprintf(logfile, "outb: %04x %02x\n", addr, val);
#endif
- ioport_write_table[0][addr](ioport_opaque[addr], addr, val);
+ ioport_write(0, addr, val);
#ifdef USE_KQEMU
if (env)
env->last_io_time = cpu_get_time_fast();
if (loglevel & CPU_LOG_IOPORT)
fprintf(logfile, "outw: %04x %04x\n", addr, val);
#endif
- ioport_write_table[1][addr](ioport_opaque[addr], addr, val);
+ ioport_write(1, addr, val);
#ifdef USE_KQEMU
if (env)
env->last_io_time = cpu_get_time_fast();
if (loglevel & CPU_LOG_IOPORT)
fprintf(logfile, "outl: %04x %08x\n", addr, val);
#endif
- ioport_write_table[2][addr](ioport_opaque[addr], addr, val);
+ ioport_write(2, addr, val);
#ifdef USE_KQEMU
if (env)
env->last_io_time = cpu_get_time_fast();
int cpu_inb(CPUState *env, int addr)
{
int val;
- val = ioport_read_table[0][addr](ioport_opaque[addr], addr);
+ val = ioport_read(0, addr);
#ifdef DEBUG_IOPORT
if (loglevel & CPU_LOG_IOPORT)
fprintf(logfile, "inb : %04x %02x\n", addr, val);
int cpu_inw(CPUState *env, int addr)
{
int val;
- val = ioport_read_table[1][addr](ioport_opaque[addr], addr);
+ val = ioport_read(1, addr);
#ifdef DEBUG_IOPORT
if (loglevel & CPU_LOG_IOPORT)
fprintf(logfile, "inw : %04x %04x\n", addr, val);
int cpu_inl(CPUState *env, int addr)
{
int val;
- val = ioport_read_table[2][addr](ioport_opaque[addr], addr);
+ val = ioport_read(2, addr);
#ifdef DEBUG_IOPORT
if (loglevel & CPU_LOG_IOPORT)
fprintf(logfile, "inl : %04x %08x\n", addr, val);
register_savevm("timer", 0, 2, timer_save, timer_load, NULL);
register_savevm("ram", 0, 2, ram_save, ram_load, NULL);
- init_ioports();
-
/* terminal init */
memset(&display_state, 0, sizeof(display_state));
if (nographic) {