src/musashi/example/sim.h

Fri, 18 Apr 2014 01:26:01 -0600

author
andrew@localhost
date
Fri, 18 Apr 2014 01:26:01 -0600
changeset 150
c19afa2c81db
parent 0
8bf1bf91a36d
permissions
-rw-r--r--

treat all DMA reads/writes as kernel mode (previously it would depend on whether the processor happens to be in user mode or kernel mode when the DMA completes, which is totally incorrect); handle 32-bit accesses that straddle page boundaries properly (all 32-bit accesses are now split into two 16-bit accesses); allow reads to the entire zero page, rather than just address 0

philpem@0 1 #ifndef SIM__HEADER
philpem@0 2 #define SIM__HEADER
philpem@0 3
philpem@0 4 unsigned int m68k_read_memory_8(unsigned int address);
philpem@0 5 unsigned int m68k_read_memory_16(unsigned int address);
philpem@0 6 unsigned int m68k_read_memory_32(unsigned int address);
philpem@0 7 void m68k_write_memory_8(unsigned int address, unsigned int value);
philpem@0 8 void m68k_write_memory_16(unsigned int address, unsigned int value);
philpem@0 9 void m68k_write_memory_32(unsigned int address, unsigned int value);
philpem@0 10 void cpu_pulse_reset(void);
philpem@0 11 void cpu_set_fc(unsigned int fc);
philpem@0 12 int cpu_irq_ack(int level);
philpem@0 13
philpem@0 14 #endif /* SIM__HEADER */