 | | Re: H8/300 Assembler/C interface
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(...) By looking at your work with 'RCX internals', dumb is not the word i'd use :) I'd rather think of something like 'bit wizard' Björn (23 years ago, 21-Apr-01, to lugnet.robotics.rcx)
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| | Re: Revisions to RcxCC
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I feel pretty stupid asking this question, but I can't seem to solve the problem myself. When I try to compile a program using John's RcxCC tool I keep getting the message: Unable to execute NQC. Check your installation. I'm running Windows 98. To (...) (23 years ago, 21-Apr-01, to lugnet.robotics.rcx.nqc)
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| | RE: H8/300 Assembler/C interface
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(...) Sorry, looks like I need sleep too! (...) Hmm, looks like r2 is a copy of the high byte of the second long, but the complete long is pushed onto the stack! So the thing about GCC NOT splitting is true, it just keeps a copy of the higher order (...) (23 years ago, 21-Apr-01, to lugnet.robotics.rcx)
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| | Re: raw touch sensor values
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(...) SENSOR_1 gives you the raw value from sensor 1. TOUCH_1 gives you the boolean value if it's a touch sensor. In fact SENSOR_1 gives you the raw value no matter what type sensor it is. HTH ROSCO (23 years ago, 21-Apr-01, to lugnet.robotics.rcx.legos)
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| | Re: H8/300 Assembler/C interface
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(...) -fomit-frame-pointer, but it can cause problems debugging (obviously not important here). John A. Tamplin jat@jaet.org 770/436-5387 HOME 4116 Manson Ave 770/431-9459 FAX Smyrna, GA 30082-3723 (23 years ago, 21-Apr-01, to lugnet.robotics.rcx)
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| | Re: H8/300 Assembler/C interface
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(...) Not my GCC: 00000016 <_main>: 16: 6d f6 mov.w r6,@-e7 <-- save frame pointer 18: 0d 76 mov.w r7,r6 <-- new frame pointer 1a: 6b 00 00 00 mov.w @0x0:16,r0 <-- r0r1 is 1st long param 1e: 6b 01 00 00 mov.w @0x0:16,r1 22: 6b 02 00 00 mov.w (...) (23 years ago, 21-Apr-01, to lugnet.robotics.rcx)
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| | raw touch sensor values
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Hello, Can you access the raw touch sensor values in legOS? I know you can do it in NQC but I haven't figured it out in legOS. Thanks in advance, Nate Ridderman (23 years ago, 21-Apr-01, to lugnet.robotics.rcx.legos)
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| | RE: H8/300 Assembler/C interface
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(...) Geez Kekoa, get some sleep. The GCC makes the callee clean up the stack. My pbForth ROM interface routines assume that the caller cleans up the stack, just like your RCX library which must have been confusing for you :-) I'll post all this in (...) (23 years ago, 21-Apr-01, to lugnet.robotics.rcx)
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| | Re: H8/300 Assembler/C interface
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(...) A brief review of the ROM disassembly seems to indicate the routines in ROM save r0-r5 if necessary. For example, the routine at 070c saves all registers. Like you said, parameters are passed in r6 with extra parameters on the stack. The (...) (23 years ago, 20-Apr-01, to lugnet.robotics.rcx)
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| | RE: H8/300 Assembler/C interface
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One more question for Kekoa before I'm done... The RCX ROM routines take a parameter in r6, with additional params on the stack. Return value is in r6 too. Are all other registers considered volatile through the call, or do the ROM routines save (...) (23 years ago, 20-Apr-01, to lugnet.robotics.rcx)
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