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atarigen: Remove the slapstic direct update handler, which hasn't been

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necessary since direct access has been enhanced to work correctly on
handlers, years ago [O. Galibert]
This commit is contained in:
Olivier Galibert 2016-05-23 17:06:40 +02:00
parent 3f0a378e54
commit d755d76fda
2 changed files with 2 additions and 24 deletions
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25
src/mame/machine/atarigen.cpp
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@ -1185,28 +1185,6 @@ void atarigen_state::device_post_load()
}
DIRECT_UPDATE_MEMBER(atarigen_state::slapstic_setdirect)
{
// if we jump to an address in the slapstic region, tweak the slapstic
// at that address and return ~0; this will cause us to be called on
// subsequent fetches as well
address &= ~m_slapstic_mirror;
if (address >= m_slapstic_base && address < m_slapstic_base + 0x8000)
{
offs_t pc = direct.space().device().safe_pcbase();
if (pc != m_slapstic_last_pc || address != m_slapstic_last_address)
{
m_slapstic_last_pc = pc;
m_slapstic_last_address = address;
slapstic_r(direct.space(), (address >> 1) & 0x3fff, 0xffff);
}
return ~0;
}
return address;
}
//-------------------------------------------------
// slapstic_configure: Installs memory handlers for the
// slapstic and sets the chip number.
@ -1224,7 +1202,6 @@ void atarigen_state::slapstic_configure(cpu_device &device, offs_t base, offs_t
// install the memory handlers
address_space &program = device.space(AS_PROGRAM);
program.install_readwrite_handler(base, base + 0x7fff, 0, mirror, read16_delegate(FUNC(atarigen_state::slapstic_r), this), write16_delegate(FUNC(atarigen_state::slapstic_w), this));
program.set_direct_update_handler(direct_update_delegate(FUNC(atarigen_state::slapstic_setdirect), this));
m_slapstic = (UINT16 *)mem;
// allocate memory for a copy of bank 0
@ -1265,6 +1242,8 @@ READ16_MEMBER(atarigen_state::slapstic_r)
if (!m_slapstic_device.found())
fatalerror("Slapstic device is missing?\n");
fprintf(stderr, "slapstic_r %04x\n", offset);
// fetch the result from the current bank first
int result = m_slapstic[offset & 0xfff];

1
src/mame/machine/atarigen.h
View File

@ -357,7 +357,6 @@ public:
// slapstic helpers
void slapstic_configure(cpu_device &device, offs_t base, offs_t mirror, UINT8 *mem);
void slapstic_update_bank(int bank);
DECLARE_DIRECT_UPDATE_MEMBER(slapstic_setdirect);
DECLARE_WRITE16_MEMBER(slapstic_w);
DECLARE_READ16_MEMBER(slapstic_r);