vasm fsincos

dalton · 02 September 2012, 18:36

Hi,

I'm trying to assemble the line "fsincos.s (a0)+,fp0,fp1" and I get the error "illegal operand types". Asm-one assembles this without woes (and it works). Does anybody know how to get vasm to compile this statement?

Cheers
Dalton

clenched · 02 September 2012, 19:24

This works on my Windows build of VASM:
fsincos.s (a0)+,fp0:fp1

matthey · 02 September 2012, 19:26

Edit:
@clenched
Verified on a 68060 using vasm and PhxAss. I disassembled the instruction in ADis and it used your format also. This format is not given in the M68000PRM but it wouldn't be the first error in this manual. This appears to be the correct format and makes more sense for the 68k.

dalton · 03 September 2012, 09:54

Ah! Like the syntax of a two-destination div.

Thanks!

phx · 03 September 2012, 10:35

In fact the M68000PRM shows the syntax with ",". But probably I chose to ignore that, because all other assemblers and disassemblers which I knew used the ":" syntax. And it also makes more sense. Two destination registers are always written with a colon in the M68k family.

Just tried Devpac, which is a good reference, and it uses the colon as well.

02 September 2012, 18:36	#1
dalton tulou Join Date: Jun 2006 Location: Gothenburg / Sweden Posts: 35	vasm fsincos Hi, I'm trying to assemble the line "fsincos.s (a0)+,fp0,fp1" and I get the error "illegal operand types". Asm-one assembles this without woes (and it works). Does anybody know how to get vasm to compile this statement? Cheers Dalton

02 September 2012, 19:26	#3
matthey Registered User Join Date: Jan 2010 Location: Kansas Posts: 205	Edit: @clenched Verified on a 68060 using vasm and PhxAss. I disassembled the instruction in ADis and it used your format also. This format is not given in the M68000PRM but it wouldn't be the first error in this manual. This appears to be the correct format and makes more sense for the 68k. Last edited by matthey; 02 September 2012 at 19:36.

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02 September 2012, 19:24	#2
clenched Registered User Join Date: Sep 2008 Location: Gainesville U.S.A. Posts: 296	This works on my Windows build of VASM: fsincos.s (a0)+,fp0:fp1

03 September 2012, 09:54	#4
dalton tulou Join Date: Jun 2006 Location: Gothenburg / Sweden Posts: 35	Ah! Like the syntax of a two-destination div. Thanks!

03 September 2012, 10:35	#5
phx Registered User Join Date: Nov 2009 Location: Herford / Germany Posts: 264	In fact the M68000PRM shows the syntax with ",". But probably I chose to ignore that, because all other assemblers and disassemblers which I knew used the ":" syntax. And it also makes more sense. Two destination registers are always written with a colon in the M68k family. Just tried Devpac, which is a good reference, and it uses the colon as well.

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