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author Aaron Giles <aaron@aarongiles.com>2010-01-18 09:34:43 +0000
committer Aaron Giles <aaron@aarongiles.com>2010-01-18 09:34:43 +0000
commite738b79785852050ce8b83e369a7fc4dd46a071b (patch)
tree1ac39e9f40790b375c57fea4e5d56ca8d132babc /src/emu/cpu/dsp56k/dsp56mem.c
parent3f87f47a2ecdccb9d9627d0d52b76f262becb949 (diff)
Correct a long-standing design flaw: device configuration state
is now separate from runtime device state. I have larger plans for devices, so there is some temporary scaffolding to hold everything together, but this first step does separate things out. There is a new class 'running_device' which represents the state of a live device. A list of these running_devices sits in machine->devicelist and is created when a running_machine is instantiated. To access the configuration state, use device->baseconfig() which returns a reference to the configuration. The list of running_devices in machine->devicelist has a 1:1 correspondance with the list of device configurations in machine->config->devicelist, and most navigation options work equally on either (scanning by class, type, etc.) For the most part, drivers will now deal with running_device objects instead of const device_config objects. In fact, in order to do this patch, I did the following global search & replace: const device_config -> running_device device->static_config -> device->baseconfig().static_config device->inline_config -> device->baseconfig().inline_config and then fixed up the compiler errors that fell out. Some specifics: Removed device_get_info_* functions and replaced them with methods called get_config_*. Added methods for get_runtime_* to access runtime state from the running_device. DEVICE_GET_INFO callbacks are only passed a device_config *. This means they have no access to the token or runtime state at all. For most cases this is fine. Added new DEVICE_GET_RUNTIME_INFO callback that is passed the running_device for accessing data that is live at runtime. In the future this will go away to make room for a cleaner mechanism. Cleaned up the handoff of memory regions from the memory subsystem to the devices.
Diffstat (limited to 'src/emu/cpu/dsp56k/dsp56mem.c')
-rw-r--r--src/emu/cpu/dsp56k/dsp56mem.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/emu/cpu/dsp56k/dsp56mem.c b/src/emu/cpu/dsp56k/dsp56mem.c
index c702ff107c2..a8ef6455611 100644
--- a/src/emu/cpu/dsp56k/dsp56mem.c
+++ b/src/emu/cpu/dsp56k/dsp56mem.c
@@ -610,7 +610,7 @@ static void dsp56k_host_interface_reset(dsp56k_core* cpustate)
/* These two functions are exposed to the outside world */
/* They represent the host side of the dsp56k's host interface */
-void dsp56k_host_interface_write(const device_config* device, UINT8 offset, UINT8 data)
+void dsp56k_host_interface_write(running_device* device, UINT8 offset, UINT8 data)
{
dsp56k_core* cpustate = get_safe_token(device);
@@ -706,7 +706,7 @@ void dsp56k_host_interface_write(const device_config* device, UINT8 offset, UINT
}
}
-UINT8 dsp56k_host_interface_read(const device_config* device, UINT8 offset)
+UINT8 dsp56k_host_interface_read(running_device* device, UINT8 offset)
{
dsp56k_core* cpustate = get_safe_token(device);
@@ -934,7 +934,7 @@ static void dsp56k_io_reset(dsp56k_core* cpustate)
/* MISC*/
-UINT16 dsp56k_get_peripheral_memory(const device_config* device, UINT16 addr)
+UINT16 dsp56k_get_peripheral_memory(running_device* device, UINT16 addr)
{
// TODO // THIS COMES BACK dsp56k_core* cpustate = get_safe_token(device);
return dsp56k_peripheral_ram[A2O(addr)];