diff options
Diffstat (limited to 'src/devices/cpu/sm510/sm510base.h')
-rw-r--r-- | src/devices/cpu/sm510/sm510base.h | 19 |
1 files changed, 5 insertions, 14 deletions
diff --git a/src/devices/cpu/sm510/sm510base.h b/src/devices/cpu/sm510/sm510base.h index adcf9a881f1..4cfdaa2c715 100644 --- a/src/devices/cpu/sm510/sm510base.h +++ b/src/devices/cpu/sm510/sm510base.h @@ -16,15 +16,9 @@ // I/O ports setup -// when in halt state, any K input going high can wake up the CPU, -// driver is required to use set_input_line(SM510_INPUT_LINE_K1/K2/K3/K4, state) -enum -{ - SM510_INPUT_LINE_K1 = 0, - SM510_INPUT_LINE_K2, - SM510_INPUT_LINE_K3, - SM510_INPUT_LINE_K4 -}; +// when in halt state, any active K input can wake up the CPU, +// driver is required to use set_input_line(SM510_EXT_WAKEUP_LINE, state) +#define SM510_EXT_WAKEUP_LINE 0 // ACL input pin #define SM510_INPUT_LINE_ACL INPUT_LINE_RESET @@ -97,8 +91,7 @@ protected: virtual u64 execute_cycles_to_clocks(u64 cycles) const noexcept override { return (cycles * m_clk_div); } // " virtual u32 execute_min_cycles() const noexcept override { return 1; } virtual u32 execute_max_cycles() const noexcept override { return 3+1; } - virtual u32 execute_input_lines() const noexcept override { return 4; } - virtual bool execute_input_edge_triggered(int inputnum) const noexcept override { return valid_wakeup_line(inputnum); } + virtual u32 execute_input_lines() const noexcept override { return 1; } virtual void execute_set_input(int line, int state) override; virtual void execute_run() override; @@ -115,7 +108,6 @@ protected: virtual void reset_vector() { do_branch(3, 7, 0); } virtual void wakeup_vector() { do_branch(1, 0, 0); } // after halt - virtual bool valid_wakeup_line(int line) const { return (line >= 0 && line < 4); } int m_prgwidth; int m_datawidth; @@ -140,8 +132,7 @@ protected: u8 m_r; u8 m_r_out; int m_r_mask_option; - int m_k_input[4]; - bool m_k_rise; + bool m_ext_wakeup; bool m_halt; int m_clk_div; |