3b1emu / file revision

src/musashi/example/sim.h@101fe02456ce

src/musashi/example/sim.h

Mon, 14 Jan 2013 09:48:21 +0000

author
Philip Pemberton <philpem@philpem.me.uk>
date
Mon, 14 Jan 2013 09:48:21 +0000
changeset 119
101fe02456ce
parent 0
8bf1bf91a36d
permissions
-rw-r--r--

Handle memory more gracefully

Fixed in this cset:

* Return an 'empty space' value if the memory wraps around

* Allow the 'empty bus' value to be changed via an ifdef

* Properly handle situations where expansion memory is turned off

     1 #ifndef SIM__HEADER

     2 #define SIM__HEADER

     3 

     4 unsigned int m68k_read_memory_8(unsigned int address);

     5 unsigned int m68k_read_memory_16(unsigned int address);

     6 unsigned int m68k_read_memory_32(unsigned int address);

     7 void m68k_write_memory_8(unsigned int address, unsigned int value);

     8 void m68k_write_memory_16(unsigned int address, unsigned int value);

     9 void m68k_write_memory_32(unsigned int address, unsigned int value);

    10 void cpu_pulse_reset(void);

    11 void cpu_set_fc(unsigned int fc);

    12 int  cpu_irq_ack(int level);

    13 

    14 #endif /* SIM__HEADER */