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Add proper support for indirect call/jmp

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This commit is contained in:
Godzil 2021-04-16 00:32:56 +01:00
parent 4082d37cb0
commit 49a1943cda
1 changed files with 10 additions and 14 deletions
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24
source/nec/nec_debugger.c
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@ -282,10 +282,10 @@ enum extendedOpcodes
OP_GP2_INC = 0,
OP_GP2_DEC = 1,
OP_GP2_CALL1 = 2,
OP_GP2_CALL2 = 3,
OP_GP2_JMP1 = 4,
OP_GP2_JMP2 = 5,
OP_GP2_CALL = 2,
OP_GP2_CALLF = 3,
OP_GP2_JMP = 4,
OP_GP2_JMPF = 5,
OP_GP2_PUSH = 6,
};
@ -721,10 +721,9 @@ int nec_decode_instruction(uint16_t segment, uint16_t offset, char *buffer, unsi
case OP_GP2_DEC:
strncat(buffer, "dec", bufferSize);
break;
case OP_GP2_CALL1:
case OP_GP2_CALL:
if (opcode == 0xFF)
{
// TODO: Understand this opcode
strncat(buffer, "call", bufferSize);
}
else
@ -733,11 +732,10 @@ int nec_decode_instruction(uint16_t segment, uint16_t offset, char *buffer, unsi
opcodeParams = PR_NONE;
}
break;
case OP_GP2_CALL2:
case OP_GP2_CALLF:
if (opcode == 0xFF)
{
// TODO: Understand this opcode
strncat(buffer, "call", bufferSize);
strncat(buffer, "call far", bufferSize);
}
else
{
@ -745,10 +743,9 @@ int nec_decode_instruction(uint16_t segment, uint16_t offset, char *buffer, unsi
opcodeParams = PR_NONE;
}
break;
case OP_GP2_JMP1:
case OP_GP2_JMP:
if (opcode == 0xFF)
{
// TODO: Understand this opcode
strncat(buffer, "jmp", bufferSize);
}
else
@ -757,11 +754,10 @@ int nec_decode_instruction(uint16_t segment, uint16_t offset, char *buffer, unsi
opcodeParams = PR_NONE;
}
break;
case OP_GP2_JMP2:
case OP_GP2_JMPF:
if (opcode == 0xFF)
{
// TODO: Understand this opcode
strncat(buffer, "jmp", bufferSize);
strncat(buffer, "jmp far", bufferSize);
}
else
{