English Amiga Board - View Single Post

phx · 06 October 2021, 17:25

I understand your problem now. With that debugger you have a program which supports multiple CPUs and therefore also has parts with opcodes for them.
Difficult, because IRA currently has no means to assign a cpu-setting to specific program regions. It's always for the whole program. I agree that would be a useful addition, though.

A hack to the IRA source you can try:

Code:

--- init.c      26 Apr 2017 20:03:22 -0000      1.9
+++ init.c      6 Oct 2021 15:11:40 -0000
@@ -309,6 +309,8 @@
                               else
                                  if (!strcmp(&odata[2], "060"))
                                     ira->params.cpuType |= M68060;
+                                 else if (!strcmp(&odata[2], "0x0"))
+                                    ira->params.cpuType |= M680x0;
                                  else
                                     ExitPrg("Unknown processor Motorola %c%s", option, odata);
             else

Then reassemble with -m680x0. But IRA won't emit the matching MC680.. directives when a cpu-specific opcode was found. It just emits "MC68060" on top, which is wrong. So even in the best case you have to check the reassembled source.
And turn on -a, so you know if a PFLUSHA mnemonic was meant for 68030 or 68060.

06 October 2021, 17:25	#52
phx Natteravn Join Date: Nov 2009 Location: Herford / Germany Posts: 2,510	I understand your problem now. With that debugger you have a program which supports multiple CPUs and therefore also has parts with opcodes for them. Difficult, because IRA currently has no means to assign a cpu-setting to specific program regions. It's always for the whole program. I agree that would be a useful addition, though. A hack to the IRA source you can try: Code: --- init.c 26 Apr 2017 20:03:22 -0000 1.9 +++ init.c 6 Oct 2021 15:11:40 -0000 @@ -309,6 +309,8 @@ else if (!strcmp(&odata[2], "060")) ira->params.cpuType \|= M68060; + else if (!strcmp(&odata[2], "0x0")) + ira->params.cpuType \|= M680x0; else ExitPrg("Unknown processor Motorola %c%s", option, odata); else Then reassemble with -m680x0. But IRA won't emit the matching MC680.. directives when a cpu-specific opcode was found. It just emits "MC68060" on top, which is wrong. So even in the best case you have to check the reassembled source. And turn on -a, so you know if a PFLUSHA mnemonic was meant for 68030 or 68060.