lh5801.h

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// SPDX-FileCopyrightText: 2014 Jonathan Neuschäfer
// SPDX-License-Identifier: LGPL-3.0-only
 
/*
 * This disassembler is based on the "SHARP PC-1500/A Systemhandbuch"
 * (system manual) as published by Günter Holtkötter GmbH.
 */
 
#include <stdint.h>
#include <stdlib.h>
typedef uint8_t ut8;
 
/* Instruction classes. That's for example "add with carry". */
enum lh5801_insn_class {
    LH5801_INSNC_ADC,
    LH5801_INSNC_ADI,
    LH5801_INSNC_DCA,
    LH5801_INSNC_ADR,
    LH5801_INSNC_SBC,
    LH5801_INSNC_SBI,
    LH5801_INSNC_DCS,
    LH5801_INSNC_AND,
    LH5801_INSNC_ANI,
    LH5801_INSNC_ORA,
    LH5801_INSNC_ORI,
    LH5801_INSNC_EOR,
    LH5801_INSNC_EAI,
    LH5801_INSNC_INC,
    LH5801_INSNC_DEC,
    LH5801_INSNC_CPA,
    LH5801_INSNC_CPI,
    LH5801_INSNC_BIT,
    LH5801_INSNC_BII,
    LH5801_INSNC_LDA,
    LH5801_INSNC_LDE,
    LH5801_INSNC_LIN,
    LH5801_INSNC_LDI,
    LH5801_INSNC_LDX,
    LH5801_INSNC_STA,
    LH5801_INSNC_SDE,
    LH5801_INSNC_SIN,
    LH5801_INSNC_STX,
    LH5801_INSNC_PSH,
    LH5801_INSNC_POP,
    LH5801_INSNC_ATT,
    LH5801_INSNC_TTA,
    LH5801_INSNC_TIN,
    LH5801_INSNC_CIN,
    LH5801_INSNC_ROL,
    LH5801_INSNC_ROR,
    LH5801_INSNC_SHL,
    LH5801_INSNC_SHR,
    LH5801_INSNC_DRL,
    LH5801_INSNC_DRR,
    LH5801_INSNC_AEX,
    LH5801_INSNC_SEC,
    LH5801_INSNC_REC,
    LH5801_INSNC_CDV,
    LH5801_INSNC_ATP,
    LH5801_INSNC_SPU,
    LH5801_INSNC_RPU,
    LH5801_INSNC_SPV,
    LH5801_INSNC_RPV,
    LH5801_INSNC_SDP,
    LH5801_INSNC_RDP,
    LH5801_INSNC_ITA,
    LH5801_INSNC_SIE,
    LH5801_INSNC_RIE,
    LH5801_INSNC_AM0,
    LH5801_INSNC_AM1,
    LH5801_INSNC_NOP,
    LH5801_INSNC_HLT,
    LH5801_INSNC_OFF,
    LH5801_INSNC_JMP,
    LH5801_INSNC_BCH,
    LH5801_INSNC_BCC,
    LH5801_INSNC_LOP,
    LH5801_INSNC_SJP,
    LH5801_INSNC_VEJ,
    LH5801_INSNC_VMJ,
    LH5801_INSNC_VCC,
    LH5801_INSNC_RTN,
    LH5801_INSNC_RTI,
 
    LH5801_INSNC_NUMBER
};
 
/* Instruction description. */
struct lh5801_insn_class_desc {
    char mnem[4]; /* Assembler mnemonic */
    const char *desc; /* Textual description (for ?d) */
 
    /* TODO: rizin insn type? */
};
 
const struct lh5801_insn_class_desc
    lh5801_insn_class_descs[LH5801_INSNC_NUMBER];
 
/* A decoded instruction */
struct lh5801_insn {
    ut8 iclass; /* an index into lh5801_insn_class_descs */
    ut8 type; /* an index into lh5801_insn_descs */
    ut8 fd;
    ut8 opcode;
    ut8 imm[3];
};
 
int lh5801_decode(struct lh5801_insn *, const uint8_t *, int);
void lh5801_print_insn(char *out, int size, const struct lh5801_insn *);