diff options
author | Miodrag Milanovic <mmicko@gmail.com> | 2016-06-12 09:09:58 +0200 |
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committer | Miodrag Milanovic <mmicko@gmail.com> | 2016-06-12 09:10:27 +0200 |
commit | 550175d8b8ec9739c5e7810bbdba789cf6b49158 (patch) | |
tree | 1e4fcca4235678fdc51a0aa9b2666fa5fc99dcf7 /src/devices/cpu/m6502/r65c02gk.h | |
parent | d1574082185c137a1214885c73b9d34af6d3f293 (diff) |
More work on gameking 3 [PeT]
Diffstat (limited to 'src/devices/cpu/m6502/r65c02gk.h')
-rw-r--r-- | src/devices/cpu/m6502/r65c02gk.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/src/devices/cpu/m6502/r65c02gk.h b/src/devices/cpu/m6502/r65c02gk.h new file mode 100644 index 00000000000..878c0ab43f7 --- /dev/null +++ b/src/devices/cpu/m6502/r65c02gk.h @@ -0,0 +1,74 @@ +// license:BSD-3-Clause +// copyright-holders:Peter Trauner +/*************************************************************************** + + r65c02gk.h + + gameking 65c02 with bitwise instructions and wai instruction, additional + interrupt vectors, special vector address base + + +***************************************************************************/ + +#ifndef __R65C02GK_H__ +#define __R65C02GK_H__ + +#include "r65c02.h" + +class r65c02gk_device : public r65c02_device { +public: + r65c02gk_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + r65c02gk_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); + + static const disasm_entry disasm_entries[0x100]; + + virtual offs_t disasm_disassemble(char *buffer, offs_t pc, const UINT8 *oprom, const UINT8 *opram, UINT32 options) override; + virtual void do_exec_full() override; + virtual void do_exec_partial() override; + enum { + IRQ_GK3A=INPUT_LINE_IRQ0, + IRQ_GK3B, + IRQ_TIMERUSER=INPUT_LINE_IRQ6, + IRQ_INPUTS, //449C, + IRQ_USER, //=INPUT_LINE_IRQ8, + IRQ_TIMER, //=INPUT_LINE_IRQ9, + IRQ_6606, + R65C02GK_IRQ_LINE12 = IRQ_GK3A/*R65C02GK_IRQ_LINE0*/+12, + R65C02GK_NMI_LINE = INPUT_LINE_NMI // >12 +// R65C02GK_SET_OVERFLOW = m6502_device::V_LINE, + }; + + void set_irq_bank(memory_bank *m_bank4000, UINT8 *bank4000_normal, UINT8 *bank4000_irq); +protected: + UINT8 *bank4000_normal, *bank4000_irq; + virtual void device_reset() override; + virtual void execute_set_input(int inputnum, int state) override; + memory_bank *m_bank4000; + +#if 0 + void prefetch(); + void prefetch_noirq(); + void prefetch_wai(); +#endif + + struct InterruptController { // nearly nothing known about it, only enough to get bios working + bool states[13]; + int getlevel() { for (int i=12; i>=0; --i) { if (states[i]) return i; } return -1; } + void Reset() { memset(states, 0, sizeof(states)); } + } interrupt_controller; + + #define O(o) void o ## _full(); void o ## _partial() + + O(brk_c_imp); + O(rti_imp); + O(wai_imp); + + // exceptions + O(reset); + +}; + + +extern const device_type R65C02GK; + +#endif |