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Diffstat (limited to 'src/devices/cpu/m6502/m65ce02.c')
-rw-r--r--src/devices/cpu/m6502/m65ce02.c98
1 files changed, 98 insertions, 0 deletions
diff --git a/src/devices/cpu/m6502/m65ce02.c b/src/devices/cpu/m6502/m65ce02.c
new file mode 100644
index 00000000000..97ad2c4b535
--- /dev/null
+++ b/src/devices/cpu/m6502/m65ce02.c
@@ -0,0 +1,98 @@
+// license:BSD-3-Clause
+// copyright-holders:Olivier Galibert
+/***************************************************************************
+
+ m65ce02.c
+
+ 6502 with Z register and some more stuff
+
+***************************************************************************/
+
+#include "emu.h"
+#include "m65ce02.h"
+
+const device_type M65CE02 = &device_creator<m65ce02_device>;
+
+m65ce02_device::m65ce02_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ m65c02_device(mconfig, M65CE02, "M65CE02", tag, owner, clock, "m65ce02", __FILE__)
+{
+}
+
+m65ce02_device::m65ce02_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source) :
+ m65c02_device(mconfig, type, name, tag, owner, clock, shortname, source)
+{
+}
+
+offs_t m65ce02_device::disasm_disassemble(char *buffer, offs_t pc, const UINT8 *oprom, const UINT8 *opram, UINT32 options)
+{
+ return disassemble_generic(buffer, pc, oprom, opram, options, disasm_entries);
+}
+
+void m65ce02_device::init()
+{
+ m65c02_device::init();
+ state_add(M65CE02_Z, "Z", Z);
+ state_add(M65CE02_B, "B", B).callimport().formatstr("%2s");
+ save_item(NAME(B));
+ save_item(NAME(Z));
+ save_item(NAME(TMP3));
+ Z = 0x00;
+ B = 0x0000;
+ TMP3 = 0x0000;
+}
+
+void m65ce02_device::device_start()
+{
+ if(direct_disabled)
+ mintf = new mi_default_nd;
+ else
+ mintf = new mi_default_normal;
+
+ init();
+}
+
+void m65ce02_device::device_reset()
+{
+ m65c02_device::device_reset();
+ Z = 0x00;
+ B = 0x0000;
+}
+
+void m65ce02_device::state_import(const device_state_entry &entry)
+{
+ switch(entry.index()) {
+ case STATE_GENFLAGS:
+ case M6502_P:
+ P = P | F_B;
+ break;
+ case M65CE02_B:
+ B <<= 8;
+ break;
+ }
+}
+
+void m65ce02_device::state_export(const device_state_entry &entry)
+{
+}
+
+void m65ce02_device::state_string_export(const device_state_entry &entry, std::string &str)
+{
+ switch(entry.index()) {
+ case STATE_GENFLAGS:
+ case M6502_P:
+ strprintf(str, "%c%c%c%c%c%c%c",
+ P & F_N ? 'N' : '.',
+ P & F_V ? 'V' : '.',
+ P & F_E ? 'E' : '.',
+ P & F_D ? 'D' : '.',
+ P & F_I ? 'I' : '.',
+ P & F_Z ? 'Z' : '.',
+ P & F_C ? 'C' : '.');
+ break;
+ case M65CE02_B:
+ strprintf(str, "%02x", B >> 8);
+ break;
+ }
+}
+
+#include "cpu/m6502/m65ce02.inc"