94 lines
2.5 KiB
C
94 lines
2.5 KiB
C
#ifndef __INSTR_H__
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#define __INSTR_H__
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#include <stdint.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include "mem.h"
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#ifndef OPCODE_WORDSIZE
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#error OPCODE_WORDSIZE must be provided
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// #define OPCODE_WORDSIZE 1
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#endif
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#if OPCODE_WORDSIZE == 1
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typedef uint8_t opcode_t;
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#elif OPCODE_WORDSIZE == 2
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typedef uint16_t opcode_t;
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#elif OPCODE_WORDSIZE == 3
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typedef uint32_t opcode_t;
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#elif OPCODE_WORDSIZE == 4
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typedef uint32_t opcode_t;
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#else
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#error OPCODE_WORDSIZE must be one of 1,2,3,4
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#endif
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#ifndef PC_WORDSIZE
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#error PC_WORDSIZE must be provided
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// #define PC_WORDSIZE 1
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#endif
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#if PC_WORDSIZE == 1
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typedef uint8_t prog_counter_t;
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#elif PC_WORDSIZE == 2
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typedef uint16_t prog_counter_t;
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#elif PC_WORDSIZE == 3
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typedef uint32_t prog_counter_t;
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#elif PC_WORDSIZE == 4
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typedef uint32_t prog_counter_t;
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#else
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#error PC_WORDSIZE must be one of 1,2,3,4
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#endif
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typedef uint8_t (*instr_h_func)(prog_counter_t*, device_mem_t*);
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typedef struct
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{
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instr_h_func h;
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opcode_t base;
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opcode_t argsMask;
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uint8_t opcodeLen;
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} instruction_metadata_t;
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instr_h_func* genInstrArray(char* errbuf);
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void setOpcodeSizes(uint8_t* opcodeSizes);
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opcode_t extractOpcode(device_mem_t* devMem, prog_counter_t programCounter);
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#define READ_MEM(__tgt, __mem, __segno, __addr, __cell_t) \
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{\
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uint64_t __globalAddr = __mem->memsegShifts[__segno] + __addr; \
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if (__mem->smartAddrReadHandlers[__globalAddr].func != NULL) \
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{ \
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__tgt = *(__cell_t*)__mem->smartAddrReadHandlers[__globalAddr].func(__mem->smartAddrReadHandlers[__globalAddr].ident, __addr, __mem->rawCells + __mem->memsegShifts[__segno]); \
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} \
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else \
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{ \
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__tgt = ((__cell_t*)__mem->cells[__segno])[__addr]; \
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} \
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__mem->memreadCellAddrs[__mem->memreadLen] = __globalAddr; \
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__mem->memreadLen += 1; \
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}
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#define WRITE_MEM(__mem, __segno, __addr, __cell_t, __val) \
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{ \
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uint64_t __globalAddr = __mem->memsegShifts[__segno] + __addr; \
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if (__mem->smartAddrWriteHandlers[__globalAddr].func != NULL) \
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{ \
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__cell_t __dat = (__cell_t)(__val); \
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__mem->smartAddrWriteHandlers[__globalAddr].func(__mem->smartAddrWriteHandlers[__globalAddr].ident, __addr, __mem->rawCells + __mem->memsegShifts[__segno], (void*)&__dat); \
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} \
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else \
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{ \
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((__cell_t*)__mem->cells[__segno])[__addr] = (__cell_t)(__val); \
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} \
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__mem->memwriteCellAddrs[__mem->memwriteLen] = __globalAddr; \
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__mem->memwriteLen += 1; \
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}
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#endif // ifndef __INSTR_H__
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