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https://opencores.org/ocsvn/eco32/eco32/trunk
Subversion Repositories eco32
[/] [eco32/] [trunk/] [sim/] [cpu.h] - Rev 192
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/* * cpu.h -- CPU simulation */ #ifndef _CPU_H_ #define _CPU_H_ #define IRQ_TIMER_1 15 /* timer 1 interrupt */ #define IRQ_TIMER_0 14 /* timer 0 interrupt */ #define IRQ_DISK 8 /* disk interrupt */ #define IRQ_KEYBOARD 4 /* keyboard interrupt */ #define IRQ_TERM_1_RCVR 3 /* terminal 1 receiver interrupt */ #define IRQ_TERM_1_XMTR 2 /* terminal 1 transmitter interrupt */ #define IRQ_TERM_0_RCVR 1 /* terminal 0 receiver interrupt */ #define IRQ_TERM_0_XMTR 0 /* terminal 0 transmitter interrupt */ #define PSW_V 0x08000000 /* interrupt vector bit in PSW */ #define PSW_UM 0x04000000 /* user mode enable bit in PSW */ #define PSW_PUM 0x02000000 /* previous value of PSW_UM */ #define PSW_OUM 0x01000000 /* old value of PSW_UM */ #define PSW_IE 0x00800000 /* interrupt enable bit in PSW */ #define PSW_PIE 0x00400000 /* previous value of PSW_IE */ #define PSW_OIE 0x00200000 /* old value of PSW_IE */ #define PSW_PRIO_MASK 0x001F0000 /* bits to encode IRQ prio in PSW */ #define PSW_PRIO_SHFT 16 /* shift count to reach these bits */ #define PSW_IRQ_MASK 0x0000FFFF /* IRQ mask bits */ Word cpuGetPC(void); void cpuSetPC(Word addr); Word cpuGetReg(int regnum); void cpuSetReg(int regnum, Word value); Word cpuGetPSW(void); void cpuSetPSW(Word value); Word cpuGetIRQ(void); Bool cpuTestBreak(void); Word cpuGetBreak(void); void cpuSetBreak(Word addr); void cpuResetBreak(void); Word cpuGetTotal(void); void cpuStep(void); void cpuRun(void); void cpuHalt(void); void cpuSetInterrupt(int priority); void cpuResetInterrupt(int priority); void cpuReset(void); void cpuInit(Word initialPC); void cpuExit(void); #endif /* _CPU_H_ */
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