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DEVCB_INPUT_PORT(tag) can be used for write callbacks.

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smf- 2009-11-26 17:25:09 +00:00
parent 680cf15e6a
commit 4f90eda49b
1 changed files with 28 additions and 2 deletions
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30
src/emu/devcb.c
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@ -104,6 +104,11 @@ void devcb_resolve_read_line(devcb_resolved_read_line *resolved, const devcb_rea
write line definition to a live definition write line definition to a live definition
-------------------------------------------------*/ -------------------------------------------------*/
static WRITE_LINE_DEVICE_HANDLER( trampoline_write_port_to_write_line )
{
input_port_write_direct((const input_port_config *)device, state, 0xffffffff);
}
static WRITE_LINE_DEVICE_HANDLER( trampoline_write8_to_write_line ) static WRITE_LINE_DEVICE_HANDLER( trampoline_write8_to_write_line )
{ {
const devcb_resolved_write_line *resolved = (const devcb_resolved_write_line *)device; const devcb_resolved_write_line *resolved = (const devcb_resolved_write_line *)device;
@ -122,8 +127,16 @@ void devcb_resolve_write_line(devcb_resolved_write_line *resolved, const devcb_w
/* reset the resolved structure */ /* reset the resolved structure */
memset(resolved, 0, sizeof(*resolved)); memset(resolved, 0, sizeof(*resolved));
if (config->type == DEVCB_TYPE_INPUT)
{
resolved->target = input_port_by_tag(&device->machine->portlist, config->tag);
if (resolved->target == NULL)
fatalerror("devcb_resolve_write_line: unable to find input port '%s' (requested by %s '%s')", config->tag, device_get_name(device), device->tag);
resolved->write = trampoline_write_port_to_write_line;
}
/* address space handlers */ /* address space handlers */
if (config->type >= DEVCB_TYPE_MEMORY(ADDRESS_SPACE_PROGRAM) && config->type < DEVCB_TYPE_MEMORY(ADDRESS_SPACES) && config->writespace != NULL) else if (config->type >= DEVCB_TYPE_MEMORY(ADDRESS_SPACE_PROGRAM) && config->type < DEVCB_TYPE_MEMORY(ADDRESS_SPACES) && config->writespace != NULL)
{ {
FPTR space = (FPTR)config->type - (FPTR)DEVCB_TYPE_MEMORY(ADDRESS_SPACE_PROGRAM); FPTR space = (FPTR)config->type - (FPTR)DEVCB_TYPE_MEMORY(ADDRESS_SPACE_PROGRAM);
const device_config *cpu; const device_config *cpu;
@ -269,6 +282,11 @@ void devcb_resolve_read8(devcb_resolved_read8 *resolved, const devcb_read8 *conf
8-bit write definition to a live definition 8-bit write definition to a live definition
-------------------------------------------------*/ -------------------------------------------------*/
static WRITE8_DEVICE_HANDLER( trampoline_write_port_to_write8 )
{
input_port_write_direct((const input_port_config *)device, data, 0xff);
}
static WRITE8_DEVICE_HANDLER( trampoline_write_line_to_write8 ) static WRITE8_DEVICE_HANDLER( trampoline_write_line_to_write8 )
{ {
const devcb_resolved_write8 *resolved = (const devcb_resolved_write8 *)device; const devcb_resolved_write8 *resolved = (const devcb_resolved_write8 *)device;
@ -280,8 +298,16 @@ void devcb_resolve_write8(devcb_resolved_write8 *resolved, const devcb_write8 *c
/* reset the resolved structure */ /* reset the resolved structure */
memset(resolved, 0, sizeof(*resolved)); memset(resolved, 0, sizeof(*resolved));
if (config->type == DEVCB_TYPE_INPUT)
{
resolved->target = input_port_by_tag(&device->machine->portlist, config->tag);
if (resolved->target == NULL)
fatalerror("devcb_resolve_read_line: unable to find input port '%s' (requested by %s '%s')", config->tag, device_get_name(device), device->tag);
resolved->write = trampoline_write_port_to_write8;
}
/* address space handlers */ /* address space handlers */
if (config->type >= DEVCB_TYPE_MEMORY(ADDRESS_SPACE_PROGRAM) && config->type < DEVCB_TYPE_MEMORY(ADDRESS_SPACES) && config->writespace != NULL) else if (config->type >= DEVCB_TYPE_MEMORY(ADDRESS_SPACE_PROGRAM) && config->type < DEVCB_TYPE_MEMORY(ADDRESS_SPACES) && config->writespace != NULL)
{ {
FPTR space = (FPTR)config->type - (FPTR)DEVCB_TYPE_MEMORY(ADDRESS_SPACE_PROGRAM); FPTR space = (FPTR)config->type - (FPTR)DEVCB_TYPE_MEMORY(ADDRESS_SPACE_PROGRAM);
const device_config *cpu; const device_config *cpu;