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56 lines
1.2 KiB
C
Executable File
56 lines
1.2 KiB
C
Executable File
#pragma once
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#define regax 0
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#define regcx 1
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#define regdx 2
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#define regbx 3
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#define regsp 4
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#define regbp 5
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#define regsi 6
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#define regdi 7
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#define reges 0
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#define regcs 1
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#define regss 2
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#define regds 3
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#ifdef __BIG_ENDIAN__
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#define regal 1
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#define regah 0
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#define regcl 3
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#define regch 2
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#define regdl 5
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#define regdh 4
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#define regbl 7
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#define regbh 6
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#else
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#define regal 0
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#define regah 1
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#define regcl 2
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#define regch 3
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#define regdl 4
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#define regdh 5
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#define regbl 6
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#define regbh 7
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#endif
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#define segbase(x) ((uint32_t) x << 4)
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#define getmem8(x, y) read86(segbase(x) + y)
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#define getmem16(x, y) readw86(segbase(x) + y)
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#define putmem8(x, y, z) write86(segbase(x) + y, z)
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#define putmem16(x, y, z) writew86(segbase(x) + y, z)
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#define getreg16(regid) regs.wordregs[regid]
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#define putreg16(regid, writeval) regs.wordregs[regid] = writeval
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typedef void (*INTHOOK) ();
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union _bytewordregs_ {
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uint16_t wordregs[8];
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uint8_t byteregs[8];
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};
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void write86 (uint32_t addr32, uint8_t value);
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void writew86 (uint32_t addr32, uint16_t value);
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uint8_t read86 (uint32_t addr32);
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uint16_t readw86 (uint32_t addr32);
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int exec86(int execloops); // returns 0 if halted
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void reset86(uint16_t startip);
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