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An "absolute mode override modifier" is now added for instructions where

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the assembler will otherwise choose the cheaper zeropage addressing mode
because of the size of the operand.


git-svn-id: svn://svn.cc65.org/cc65/trunk@2590 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz
2003-10-31 16:28:56 +00:00
parent 7496da8f93
commit cba152f777
6 changed files with 1050 additions and 1034 deletions
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20
src/da65/handler.c
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@@ -90,6 +90,20 @@ static void OneLine (const OpcDesc* D, const char* Arg, ...)
static const char* GetAbsOverride (unsigned Flags, unsigned Addr)
/* If the instruction requires an abs override modifier, return the necessary
* string, otherwise return the empty string.
*/
{
if (Flags & flAbsOverride && Addr < 0x100) {
return "a:";
} else {
return "";
}
}
static const char* GetAddrArg (unsigned Flags, unsigned Addr)
/* Return an address argument - a label if we have one, or the address itself */
{
@@ -212,7 +226,7 @@ void OH_Absolute (const OpcDesc* D)
GenerateLabel (D->Flags, Addr);
/* Output the line */
OneLine (D, "%s", GetAddrArg (D->Flags, Addr));
OneLine (D, "%s%s", GetAbsOverride (D->Flags, Addr), GetAddrArg (D->Flags, Addr));
}
@@ -226,7 +240,7 @@ void OH_AbsoluteX (const OpcDesc* D)
GenerateLabel (D->Flags, Addr);
/* Output the line */
OneLine (D, "%s,x", GetAddrArg (D->Flags, Addr));
OneLine (D, "%s%s,x", GetAbsOverride (D->Flags, Addr), GetAddrArg (D->Flags, Addr));
}
@@ -240,7 +254,7 @@ void OH_AbsoluteY (const OpcDesc* D)
GenerateLabel (D->Flags, Addr);
/* Output the line */
OneLine (D, "%s,y", GetAddrArg (D->Flags, Addr));
OneLine (D, "%s%s,y", GetAbsOverride (D->Flags, Addr), GetAddrArg (D->Flags, Addr));
}