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view z80inst.h @ 987:1f09994e92c5
Initial stab at implementing address error exceptions. Need to fill in the value of IR, undefined bits of last stack frame word and properly deal with address errors that occur during exception processing.
author | Michael Pavone <pavone@retrodev.com> |
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date | Tue, 26 Apr 2016 23:13:37 -0700 |
parents | 140af5509ce7 |
children | 1625555e346e |
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/* Copyright 2013 Michael Pavone This file is part of BlastEm. BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text. */ #ifndef Z80INST_H_ #define Z80INST_H_ #include <stdint.h> enum { Z80_LD, Z80_PUSH, Z80_POP, Z80_EX, Z80_EXX, Z80_LDI, Z80_LDIR, Z80_LDD, Z80_LDDR, Z80_CPI, Z80_CPIR, Z80_CPD, Z80_CPDR, Z80_ADD, Z80_ADC, Z80_SUB, Z80_SBC, Z80_AND, Z80_OR, Z80_XOR, Z80_CP, Z80_INC, Z80_DEC, Z80_DAA, Z80_CPL, Z80_NEG, Z80_CCF, Z80_SCF, Z80_NOP, Z80_HALT, Z80_DI, Z80_EI, Z80_IM, Z80_RLC, Z80_RL, Z80_RRC, Z80_RR, Z80_SLA, Z80_SRA, Z80_SLL, Z80_SRL, Z80_RLD, Z80_RRD, Z80_BIT, Z80_SET, Z80_RES, Z80_JP, Z80_JPCC, Z80_JR, Z80_JRCC, Z80_DJNZ, Z80_CALL, Z80_CALLCC, Z80_RET, Z80_RETCC, Z80_RETI, Z80_RETN, Z80_RST, Z80_IN, Z80_INI, Z80_INIR, Z80_IND, Z80_INDR, Z80_OUT, Z80_OUTI, Z80_OTIR, Z80_OUTD, Z80_OTDR }; enum { Z80_C=0, Z80_B, Z80_E, Z80_D, Z80_L, Z80_H, Z80_IXL, Z80_IXH, Z80_IYL, Z80_IYH, Z80_I, Z80_R, Z80_A, Z80_BC, Z80_DE, Z80_HL, Z80_SP, Z80_AF, Z80_IX, Z80_IY, Z80_UNUSED }; #define Z80_IMMED_FLAG 0x80 #define Z80_USE_IMMED (Z80_IMMED_FLAG|Z80_UNUSED) enum { Z80_CC_NZ, Z80_CC_Z, Z80_CC_NC, Z80_CC_C, Z80_CC_PO, Z80_CC_PE, Z80_CC_P, Z80_CC_M }; enum { Z80_REG, Z80_REG_INDIRECT, Z80_IMMED, Z80_IMMED_INDIRECT, Z80_IX_DISPLACE, Z80_IY_DISPLACE }; #define Z80_DIR 0x80 typedef struct { uint8_t op; uint8_t reg; uint8_t addr_mode; uint8_t ea_reg; uint16_t immed; } z80inst; uint8_t * z80_decode(uint8_t * istream, z80inst * decoded); int z80_disasm(z80inst * decoded, char * dst, uint16_t address); uint8_t z80_high_reg(uint8_t reg); uint8_t z80_low_reg(uint8_t reg); uint8_t z80_word_reg(uint8_t reg); uint8_t z80_is_terminal(z80inst * inst); #endif //Z80INST_H_