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Introduce RISC-V support in goodasm #30

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bc29ea7
Introduce RISC-V support in goodasm
nap32 Nov 19, 2025
eb69e6c
Fix kludge with RV32I v. RISCV base implementation
nap32 Feb 16, 2026
57af7c0
Self-test passes.
nap32 Feb 16, 2026
5b2edbf
Fix compressed instruction issues
nap32 Feb 18, 2026
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2 changes: 2 additions & 0 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -73,6 +73,8 @@ set(GOODASM_SOURCES
galangarm7tdmi.h galangarm7tdmi.cpp
galangtms320c28x.h galangtms320c28x.cpp
galangti80.h galangti80.cpp
galangriscv32.h galangriscv32.cpp
galangriscv.h galangriscv.cpp
)


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5 changes: 5 additions & 0 deletions galangriscv.cpp
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@@ -0,0 +1,5 @@
#include "galangriscv.h"

GALangRISCV::GALangRISCV() : GALangRISCV32() {
name = "riscv";
}
12 changes: 12 additions & 0 deletions galangriscv.h
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Original file line number Diff line number Diff line change
@@ -0,0 +1,12 @@
#ifndef GALANGRISCV_H
#define GALANGRISCV_H

#include "galangriscv32.h"

class GALangRISCV : public GALangRISCV32
{
public:
GALangRISCV();
};

#endif // GALANGRISCV_H
4,582 changes: 4,582 additions & 0 deletions galangriscv32.cpp
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346 changes: 346 additions & 0 deletions galangriscv32.h
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@@ -0,0 +1,346 @@
#ifndef GALANGRISCV32_H
#define GALANGRISCV32_H

#include "galanguage.h"
#include "gaparameter.h"
#include "gamnemonic.h"

class GALangRISCV32 : public GALanguage
{
public:
GALangRISCV32();
};

class GAParameterRiscvReg : public GAParameter {
public:
GAParameterRiscvReg(const char* mask);
int match(GAParserOperand *op, int len) override;

QString decode(GALanguage *lang, uint64_t adr,
const char *bytes, int inslen) override;

void encode(GALanguage *lang,
uint64_t adr, QByteArray &bytes,
GAParserOperand op,
int inslen
) override;
};


class GAParameterRiscvImm12 : public GAParameter {
public:
GAParameterRiscvImm12(const char* mask);
int match(GAParserOperand *op, int len) override;

QString decode(GALanguage *lang, uint64_t adr,
const char *bytes, int inslen) override;
void encode(GALanguage *lang,
uint64_t adr, QByteArray &bytes,
GAParserOperand op,
int inslen
) override;
};

class GAParameterRiscvUtypeImm20 : public GAParameter {
public:
GAParameterRiscvUtypeImm20(const char* mask);
int match(GAParserOperand *op, int len) override;

QString decode(GALanguage *lang, uint64_t adr,
const char *bytes, int inslen) override;

void encode(GALanguage *lang,
uint64_t adr, QByteArray &bytes,
GAParserOperand op,
int inslen
) override;
};

class GAParameterRiscvBtypeImm13 : public GAParameter {
public:
GAParameterRiscvBtypeImm13(const char* mask);
int match(GAParserOperand *op, int len) override;

QString decode(GALanguage *lang, uint64_t adr,
const char *bytes, int inslen) override;

void encode(GALanguage *lang,
uint64_t adr, QByteArray &bytes,
GAParserOperand op,
int inslen
) override;
};

class GAParameterRiscvJtypeImm21 : public GAParameter {
public:
GAParameterRiscvJtypeImm21(const char* mask);
int match(GAParserOperand *op, int len) override;

QString decode(GALanguage *lang, uint64_t adr,
const char *bytes, int inslen) override;

void encode(GALanguage *lang,
uint64_t adr, QByteArray &bytes,
GAParserOperand op,
int inslen
) override;
};

class GAParameterRiscvStypeImm12 : public GAParameter {
public:
GAParameterRiscvStypeImm12(const char* mask);
int match(GAParserOperand *op, int len) override;

QString decode(GALanguage *lang, uint64_t adr,
const char *bytes, int inslen) override;

void encode(GALanguage *lang,
uint64_t adr, QByteArray &bytes,
GAParserOperand op,
int inslen
) override;
};

class GAParameterRiscvFencePredSucc : public GAParameter {
public:
GAParameterRiscvFencePredSucc(const char* mask);
int match(GAParserOperand *op, int len) override;

QString decode(GALanguage *lang, uint64_t adr,
const char *bytes, int inslen) override;

void encode(GALanguage *lang,
uint64_t adr, QByteArray &bytes,
GAParserOperand op,
int inslen
) override;
};

class GAParameterRiscvShamt5 : public GAParameter {
public:
GAParameterRiscvShamt5(const char* mask);
int match(GAParserOperand *op, int len) override;

QString decode(GALanguage *lang, uint64_t adr,
const char *bytes, int inslen) override;

void encode(GALanguage *lang,
uint64_t adr, QByteArray &bytes,
GAParserOperand op,
int inslen
) override;
};

class GAParameterRiscvCsr12 : public GAParameter {
public:
GAParameterRiscvCsr12(const char* mask);
int match(GAParserOperand *op, int len) override;

QString decode(GALanguage *lang, uint64_t adr,
const char *bytes, int inslen) override;

void encode(GALanguage *lang,
uint64_t adr, QByteArray &bytes,
GAParserOperand op,
int inslen
) override;
};

class GAParameterRiscvUimm5 : public GAParameter {
public:
GAParameterRiscvUimm5(const char* mask);
int match(GAParserOperand *op, int len) override;

QString decode(GALanguage *lang, uint64_t adr,
const char *bytes, int inslen) override;

void encode(GALanguage *lang,
uint64_t adr, QByteArray &bytes,
GAParserOperand op,
int inslen
) override;
};

// C Extension parameter types for compressed 16-bit instructions

class GAParameterRiscvCompReg : public GAParameter {
public:
GAParameterRiscvCompReg(const char* mask);
int match(GAParserOperand *op, int len) override;

QString decode(GALanguage *lang, uint64_t adr,
const char *bytes, int inslen) override;

void encode(GALanguage *lang,
uint64_t adr, QByteArray &bytes,
GAParserOperand op,
int inslen
) override;
};

class GAParameterRiscvCIimm6 : public GAParameter {
public:
GAParameterRiscvCIimm6(const char* mask);
int match(GAParserOperand *op, int len) override;

QString decode(GALanguage *lang, uint64_t adr,
const char *bytes, int inslen) override;

void encode(GALanguage *lang,
uint64_t adr, QByteArray &bytes,
GAParserOperand op,
int inslen
) override;
};

class GAParameterRiscvCIUimm6 : public GAParameter {
public:
GAParameterRiscvCIUimm6(const char* mask);
int match(GAParserOperand *op, int len) override;

QString decode(GALanguage *lang, uint64_t adr,
const char *bytes, int inslen) override;

void encode(GALanguage *lang,
uint64_t adr, QByteArray &bytes,
GAParserOperand op,
int inslen
) override;
};

class GAParameterRiscvCIUimm6Srai : public GAParameter {
public:
GAParameterRiscvCIUimm6Srai(const char* mask);
int match(GAParserOperand *op, int len) override;

QString decode(GALanguage *lang, uint64_t adr,
const char *bytes, int inslen) override;

void encode(GALanguage *lang,
uint64_t adr, QByteArray &bytes,
GAParserOperand op,
int inslen
) override;
};

class GAParameterRiscvCIimm7 : public GAParameter {
public:
GAParameterRiscvCIimm7(const char* mask);
int match(GAParserOperand *op, int len) override;

QString decode(GALanguage *lang, uint64_t adr,
const char *bytes, int inslen) override;

void encode(GALanguage *lang,
uint64_t adr, QByteArray &bytes,
GAParserOperand op,
int inslen
) override;
};

class GAParameterRiscvCIWimm9 : public GAParameter {
public:
GAParameterRiscvCIWimm9(const char* mask);
int match(GAParserOperand *op, int len) override;

QString decode(GALanguage *lang, uint64_t adr,
const char *bytes, int inslen) override;

void encode(GALanguage *lang,
uint64_t adr, QByteArray &bytes,
GAParserOperand op,
int inslen
) override;
};

class GAParameterRiscvCLimm5 : public GAParameter {
public:
GAParameterRiscvCLimm5(const char* mask);
int match(GAParserOperand *op, int len) override;

QString decode(GALanguage *lang, uint64_t adr,
const char *bytes, int inslen) override;

void encode(GALanguage *lang,
uint64_t adr, QByteArray &bytes,
GAParserOperand op,
int inslen
) override;
};

class GAParameterRiscvCSimm5 : public GAParameter {
public:
GAParameterRiscvCSimm5(const char* mask);
int match(GAParserOperand *op, int len) override;

QString decode(GALanguage *lang, uint64_t adr,
const char *bytes, int inslen) override;

void encode(GALanguage *lang,
uint64_t adr, QByteArray &bytes,
GAParserOperand op,
int inslen
) override;
};

class GAParameterRiscvCSSimm7 : public GAParameter {
public:
GAParameterRiscvCSSimm7(const char* mask);
int match(GAParserOperand *op, int len) override;

QString decode(GALanguage *lang, uint64_t adr,
const char *bytes, int inslen) override;

void encode(GALanguage *lang,
uint64_t adr, QByteArray &bytes,
GAParserOperand op,
int inslen
) override;
};

class GAParameterRiscvCBimm9 : public GAParameter {
public:
GAParameterRiscvCBimm9(const char* mask);
int match(GAParserOperand *op, int len) override;

QString decode(GALanguage *lang, uint64_t adr,
const char *bytes, int inslen) override;

void encode(GALanguage *lang,
uint64_t adr, QByteArray &bytes,
GAParserOperand op,
int inslen
) override;
};

class GAParameterRiscvCJimm12 : public GAParameter {
public:
GAParameterRiscvCJimm12(const char* mask);
int match(GAParserOperand *op, int len) override;

QString decode(GALanguage *lang, uint64_t adr,
const char *bytes, int inslen) override;

void encode(GALanguage *lang,
uint64_t adr, QByteArray &bytes,
GAParserOperand op,
int inslen
) override;
};

class GAParameterRiscvCBimm6Andi : public GAParameter {
public:
GAParameterRiscvCBimm6Andi(const char* mask);
int match(GAParserOperand *op, int len) override;

QString decode(GALanguage *lang, uint64_t adr,
const char *bytes, int inslen) override;

void encode(GALanguage *lang,
uint64_t adr, QByteArray &bytes,
GAParserOperand op,
int inslen
) override;
};

#endif // GALANGRISCV32_H
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