More fixes.

src/machine/m_at_socket7.c

@@ -345,8 +345,8 @@ machine_at_cu430hx_gpio_handler(uint8_t write, uint32_t val)
     uint32_t ret = machine_get_gpio_default();
 
     if (write) {
-        ret &= (val | 0xffff00ff);
-        ret = (ret & 0xffffffcf) | (val & 0x0000ff30);
+        ret &= ((val & 0xffffffcf) | 0xffff0000);
+        ret |= (val & 0x00000030);
         if (machine_snd != NULL)  switch ((val >> 4) & 0x03) {
             case 0x00:
                 sb_vibra16c_onboard_relocate_base(0x0220, machine_snd);

src/machine/m_at_socket7_3v.c

@@ -289,8 +289,8 @@ machine_at_endeavor_gpio_handler(uint8_t write, uint32_t val)
     uint32_t ret = machine_get_gpio_default();
 
     if (write) {
-        ret &= (val | 0xffff00ff);
-        ret = (ret & 0xffffffcf) | (val & 0x0000ff30);
+        ret &= ((val & 0xffffffcf) | 0xffff0000);
+        ret |= (val & 0x00000030);
         if (machine_snd != NULL)  switch ((val >> 4) & 0x03) {
             case 0x00:
                 sb_vibra16s_onboard_relocate_base(0x0220, machine_snd);

src/sio/sio_pc87306.c

@@ -70,7 +70,6 @@ pc87306_gpio_write(uint16_t port, uint8_t val, void *priv)
 uint8_t
 pc87306_gpio_read(uint16_t port, void *priv)
 {
-    const pc87306_t *dev = (pc87306_t *) priv;
     uint32_t ret = machine_handle_gpio(0, 0xffffffff);
 
     if (port & 0x0001)
@@ -99,11 +98,11 @@ pc87306_gpio_init(pc87306_t *dev)
 
     if (dev->gpioba != 0x0000) {
         if ((dev->regs[0x12]) & 0x10)
-            io_sethandler(dev->regs[0x0f] << 2, 0x0001,
+            io_sethandler(dev->gpioba, 0x0001,
                           pc87306_gpio_read, NULL, NULL, pc87306_gpio_write, NULL, NULL, dev);
 
         if ((dev->regs[0x12]) & 0x20)
-            io_sethandler((dev->regs[0x0f] << 2) + 1, 0x0001,
+            io_sethandler(dev->gpioba + 1, 0x0001,
                           pc87306_gpio_read, NULL, NULL, pc87306_gpio_write, NULL, NULL, dev);
     }
 }
@@ -254,8 +253,6 @@ pc87306_write(uint16_t port, uint8_t val, void *priv)
             if ((dev->cur_reg <= 28) && (dev->cur_reg != 8)) {
                 if (dev->cur_reg == 0)
                     val &= 0x5f;
-                if (((dev->cur_reg == 0x0F) || (dev->cur_reg == 0x12)) && valxor)
-                    pc87306_gpio_remove(dev);
                 dev->regs[dev->cur_reg] = val;
             } else
                 return;
@@ -266,7 +263,7 @@ pc87306_write(uint16_t port, uint8_t val, void *priv)
     }
 
     switch (dev->cur_reg) {
-        case 0:
+        case 0x00:
             if (valxor & 1) {
                 lpt1_remove();
                 if ((val & 1) && !(dev->regs[2] & 1))
@@ -288,7 +285,7 @@ pc87306_write(uint16_t port, uint8_t val, void *priv)
                     fdc_set_base(dev->fdc, (val & 0x20) ? FDC_SECONDARY_ADDR : FDC_PRIMARY_ADDR);
             }
             break;
-        case 1:
+        case 0x01:
             if (valxor & 3) {
                 lpt1_remove();
                 if ((dev->regs[0] & 1) && !(dev->regs[2] & 1))
@@ -305,7 +302,7 @@ pc87306_write(uint16_t port, uint8_t val, void *priv)
                     serial_handler(dev, 1);
             }
             break;
-        case 2:
+        case 0x02:
             if (valxor & 1) {
                 lpt1_remove();
                 serial_remove(dev->uart[0]);
@@ -329,23 +326,23 @@ pc87306_write(uint16_t port, uint8_t val, void *priv)
                     lpt1_handler(dev);
             }
             break;
-        case 4:
+        case 0x04:
             if (valxor & 0x80)
                 nvr_lock_set(0x00, 256, !!(val & 0x80), dev->nvr);
             break;
-        case 5:
+        case 0x05:
             if (valxor & 0x08)
                 nvr_at_handler(!!(val & 0x08), 0x0070, dev->nvr);
             if (valxor & 0x20)
                 nvr_bank_set(0, !!(val & 0x20), dev->nvr);
             break;
-        case 9:
+        case 0x09:
             if (valxor & 0x44) {
                 fdc_update_enh_mode(dev->fdc, (val & 4) ? 1 : 0);
                 fdc_update_densel_polarity(dev->fdc, (val & 0x40) ? 1 : 0);
             }
             break;
-        case 0xF:
+        case 0x0f:
             if (valxor)
                 pc87306_gpio_handler(dev);
             break;

src/sound/snd_sb.c

@@ -2024,6 +2024,7 @@ sb_16_init(UNUSED(const device_t *info))
     if (device_get_config_int("receive_input"))
         midi_in_handler(1, sb_dsp_input_msg, sb_dsp_input_sysex, &sb->dsp);
 
+    sb->gameport = gameport_add(&gameport_pnp_device);
     sb->gameport_addr = 0x200;
 
     return sb;
@@ -2130,6 +2131,7 @@ sb_16_compat_init(const device_t *info)
     mpu401_init(sb->mpu, 0, 0, M_UART, info->local);
     sb_dsp_set_mpu(&sb->dsp, sb->mpu);
 
+    sb->gameport = gameport_add(&gameport_pnp_device);
     sb->gameport_addr = 0x200;
 
     return sb;
@@ -2228,6 +2230,7 @@ sb_awe32_init(UNUSED(const device_t *info))
     if (device_get_config_int("receive_input"))
         midi_in_handler(1, sb_dsp_input_msg, sb_dsp_input_sysex, &sb->dsp);
 
+    sb->gameport = gameport_add(&gameport_pnp_device);
     sb->gameport_addr = 0x200;
 
     return sb;

src/sound/sound.c

@@ -219,7 +219,7 @@ sound_card_get_from_internal_name(const char *s)
 void
 sound_card_init(void)
 {
-    if (sound_cards[sound_card_current[0]].device)
+    if ((sound_card_current[0] != SOUND_INTERNAL) && (sound_cards[sound_card_current[0]].device))
         device_add(sound_cards[sound_card_current[0]].device);
     if (sound_cards[sound_card_current[1]].device)
         device_add(sound_cards[sound_card_current[1]].device);
@@ -512,14 +512,14 @@ sound_reset(void)
     filter_cd_audio_p = NULL;
 
     sound_set_cd_volume(65535, 65535);
+
+    /* Reset the MPU-401 already loaded flag and the chain of input/output handlers. */
+    midi_in_handlers_clear();
 }
 
 void
 sound_card_reset(void)
 {
-    /* Reset the MPU-401 already loaded flag and the chain of input/output handlers. */
-    midi_in_handlers_clear();
-
     sound_card_init();
 
     if (mpu401_standalone_enable)