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Added code to make the 65816's MVN and MVP instructions handle both immediate (bank) and far-address operands.

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This commit is contained in:
Greg King 2018-07-29 03:50:02 -04:00
parent e6fc904e3c
commit ad6c2dbe7b
1 changed files with 22 additions and 2 deletions
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24
src/ca65/instr.c
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@ -1295,18 +1295,38 @@ static void PutPCRel4510 (const InsDesc* Ins)
}
static void PutBlockMove (const InsDesc* Ins)
/* Handle the blockmove instructions (65816) */
{
ExprNode* Arg1 = Expression ();
ExprNode* Arg1;
ExprNode* Arg2;
Emit0 (Ins->BaseCode);
if (CurTok.Tok == TOK_HASH) {
/* The operand is a bank-byte expression. */
NextTok ();
Arg1 = Expression ();
} else {
/* The operand is a far-address expression.
** Use only its bank part.
*/
Arg1 = FuncBankByte ();
}
ConsumeComma ();
if (CurTok.Tok == TOK_HASH) {
NextTok ();
Arg2 = Expression ();
} else {
Arg2 = FuncBankByte ();
}
/* The operands are written in Assembly code as source, destination;
** but, they're assembled as <destination> <source>.
*/
EmitByte (Expression ());
EmitByte (Arg2);
EmitByte (Arg1);
}