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Diffstat (limited to 'src/devices/cpu/upd7725/upd7725.cpp')
-rw-r--r--src/devices/cpu/upd7725/upd7725.cpp49
1 files changed, 18 insertions, 31 deletions
diff --git a/src/devices/cpu/upd7725/upd7725.cpp b/src/devices/cpu/upd7725/upd7725.cpp
index cb63995abb3..45f685c1370 100644
--- a/src/devices/cpu/upd7725/upd7725.cpp
+++ b/src/devices/cpu/upd7725/upd7725.cpp
@@ -24,23 +24,23 @@
DEFINE_DEVICE_TYPE(UPD7725, upd7725_device, "upd7725", "NEC uPD7725")
DEFINE_DEVICE_TYPE(UPD96050, upd96050_device, "upd96050", "NEC uPD96050")
-necdsp_device::necdsp_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock, uint32_t abits, uint32_t dbits)
- : cpu_device(mconfig, type, tag, owner, clock),
- m_program_config("program", ENDIANNESS_BIG, 32, abits, -2), // data bus width, address bus width, -2 means DWORD-addressable
- m_data_config("data", ENDIANNESS_BIG, 16, dbits, -1), m_icount(0), // -1 for WORD-addressable
- m_irq(0),
- m_irq_firing(0),
- m_in_int_cb(*this),
- //m_in_si_cb(*this),
- //m_in_sck_cb(*this),
- //m_in_sien_cb(*this),
- //m_in_soen_cb(*this),
- //m_in_dack_cb(*this),
- m_out_p0_cb(*this),
- m_out_p1_cb(*this)
- //m_out_so_cb(*this),
- //m_out_sorq_cb(*this),
- //m_out_drq_cb(*this)
+necdsp_device::necdsp_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock, uint32_t abits, uint32_t dbits) :
+ cpu_device(mconfig, type, tag, owner, clock),
+ m_program_config("program", ENDIANNESS_BIG, 32, abits, -2), // data bus width, address bus width, -2 means DWORD-addressable
+ m_data_config("data", ENDIANNESS_BIG, 16, dbits, -1), m_icount(0), // -1 for WORD-addressable
+ m_irq(0),
+ m_irq_firing(0),
+ m_in_int_cb(*this, 0),
+ //m_in_si_cb(*this, 0),
+ //m_in_sck_cb(*this, 0),
+ //m_in_sien_cb(*this, 0),
+ //m_in_soen_cb(*this, 0),
+ //m_in_dack_cb(*this, 0),
+ m_out_p0_cb(*this),
+ m_out_p1_cb(*this)
+ //m_out_so_cb(*this),
+ //m_out_sorq_cb(*this),
+ //m_out_drq_cb(*this)
{
}
@@ -86,19 +86,6 @@ void necdsp_device::device_start()
state_add(UPD7725_SO, "SO", regs.so);
state_add(UPD7725_IDB, "IDB", regs.idb);
- // resolve callbacks
- m_in_int_cb.resolve_safe(0);
- //m_in_si_cb.resolve_safe(0);
- //m_in_sck_cb.resolve_safe(0);
- //m_in_sien_cb.resolve_safe(0);
- //m_in_soen_cb.resolve_safe(0);
- //m_in_dack_cb.resolve_safe(0);
- m_out_p0_cb.resolve_safe();
- m_out_p1_cb.resolve_safe();
- //m_out_so_cb.resolve_safe();
- //m_out_sorq_cb.resolve_safe();
- //m_out_drq_cb.resolve_safe();
-
// save state registrations
save_item(NAME(regs.pc));
save_item(NAME(regs.rp));
@@ -437,7 +424,7 @@ void necdsp_device::exec_op(uint32_t opcode) {
case 12: r = (q << 1) | (c ? 1 : 0); break; //SHL1 (ROL)
case 13: r = (q << 2) | 3; break; //SHL2
case 14: r = (q << 4) | 15; break; //SHL4
- case 15: r = (q << 8) | (q >> 8); break; //XCHG
+ case 15: r = swapendian_int16(q); break; //XCHG
}
flag.s0 = (r & 0x8000);