From 38e102d2df571dbcfe499f2a57b1228d0018804e Mon Sep 17 00:00:00 2001 From: cuz Date: Sun, 10 Aug 2003 16:12:04 +0000 Subject: [PATCH] Fixed a bug git-svn-id: svn://svn.cc65.org/cc65/trunk@2256 b7a2c559-68d2-44c3-8de9-860c34a00d81 --- src/cc65/coptstop.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/src/cc65/coptstop.c b/src/cc65/coptstop.c index 5a512cb20..4f83b8ef5 100644 --- a/src/cc65/coptstop.c +++ b/src/cc65/coptstop.c @@ -209,10 +209,12 @@ static void CheckDirectOp (StackOpData* D) /* These insns are all ok and replaceable */ D->Flags |= OP_DIRECT; } else if (E->AM == AM65_ZP_INDY && RegValIsKnown (E->RI->In.RegY) && - strcmp (E->Arg, D->ZPLo) != 0 && strcmp (E->Arg, D->ZPHi) != 0) { - /* Load indirect with known offset is also ok, provided that - * the zeropage location used is not the same as the one we're - * using for the temp storage. + strcmp (E->Arg, "sp") == 0) { + /* A load from the stack with known offset is also ok, but in this + * case we must reload the index register later. Please note that + * a load indirect via other zero page locations is not ok, since + * these locations may change between the push and the actual + * operation. */ D->Flags |= (OP_DIRECT | OP_RELOAD_Y); } -- 2.39.5