Re: Question about address resolving code (64bit)
"Stanislav" <[email protected]> Sat, 11 May 2019 12:15:35 +0300
| Newsgroups | gmane.comp.emulators.bochs.devel |
|---|---|
| Message-ID | <[email protected]> |
This is a multipart message in MIME format. --===============6165353972732929298== Content-Type: multipart/alternative; boundary="----=_NextPart_000_0020_01D507F3.4B4F1920" Content-Language: en-il This is a multipart message in MIME format. ------=_NextPart_000_0020_01D507F3.4B4F1920 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable cpu.h:# define BX_CPU_RESOLVE_ADDR(i) \ cpu.h: ((i)->as64L() ? BxResolve64(i) : BxResolve32(i)) =20 Did it answer you ? =20 Stanislav =20 From: Ignat G. <[email protected]>=20 Sent: Thursday, 25 April 2019 10:02 To: [email protected] Subject: [Bochs-developers] Question about address resolving code = (64bit) =20 Hello everyone, =20 I'm working on a project which involves X86 emulation, and it's going = great so far (Bochs is a really good source to learn from). I've been studying parts of the code but there's a thing that doesn't = make sense to me. In BxResolve64 (cpu/cpu.h), why doesn't it do "& i->asize_mask()" like = BxResolve32 does? Surely you'd still need to cut off high bytes depending on the = address-size prefix, right? =20 Thank you. ------=_NextPart_000_0020_01D507F3.4B4F1920 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <html xmlns:v=3D"urn:schemas-microsoft-com:vml" = xmlns:o=3D"urn:schemas-microsoft-com:office:office" = xmlns:w=3D"urn:schemas-microsoft-com:office:word" = xmlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" = xmlns=3D"http://www.w3.org/TR/REC-html40"><head><meta = http-equiv=3DContent-Type content=3D"text/html; charset=3Dutf-8"><meta = name=3DGenerator content=3D"Microsoft Word 15 (filtered = medium)"><style><!-- /* Font Definitions */ @font-face {font-family:"Cambria Math"; panose-1:2 4 5 3 5 4 6 3 2 4;} @font-face {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0cm; margin-bottom:.0001pt; font-size:12.0pt; font-family:"Times New Roman",serif;} a:link, span.MsoHyperlink {mso-style-priority:99; color:#0563C1; text-decoration:underline;} a:visited, span.MsoHyperlinkFollowed {mso-style-priority:99; color:#954F72; text-decoration:underline;} p.msonormal0, li.msonormal0, div.msonormal0 {mso-style-name:msonormal; mso-margin-top-alt:auto; margin-right:0cm; mso-margin-bottom-alt:auto; margin-left:0cm; font-size:12.0pt; font-family:"Times New Roman",serif;} span.EmailStyle18 {mso-style-type:personal-reply; font-family:"Calibri",sans-serif; color:#1F497D;} .MsoChpDefault {mso-style-type:export-only; font-family:"Calibri",sans-serif;} @page WordSection1 {size:612.0pt 792.0pt; margin:72.0pt 72.0pt 72.0pt 72.0pt;} div.WordSection1 {page:WordSection1;} --></style><!--[if gte mso 9]><xml> <o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" /> </xml><![endif]--><!--[if gte mso 9]><xml> <o:shapelayout v:ext=3D"edit"> <o:idmap v:ext=3D"edit" data=3D"1" /> </o:shapelayout></xml><![endif]--></head><body lang=3DEN-US = link=3D"#0563C1" vlink=3D"#954F72"><div class=3DWordSection1><p = class=3DMsoNormal><span = style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'= >cpu.h:#=C2=A0 define BX_CPU_RESOLVE_ADDR(i) \<o:p></o:p></span></p><p = class=3DMsoNormal><span = style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'= >cpu.h:=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= ((i)->as64L() ? BxResolve64(i) : = BxResolve32(i))<o:p></o:p></span></p><p class=3DMsoNormal><span = style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'= ><o:p> </o:p></span></p><p class=3DMsoNormal><span = style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'= >Did it answer you ?<o:p></o:p></span></p><p class=3DMsoNormal><span = style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'= ><o:p> </o:p></span></p><p class=3DMsoNormal><span = style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'= >Stanislav<o:p></o:p></span></p><p class=3DMsoNormal><span = style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'= ><o:p> </o:p></span></p><p class=3DMsoNormal><b><span = style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif'>From:</span><= /b><span style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif'> = Ignat G. <[email protected]> <br><b>Sent:</b> Thursday, = 25 April 2019 10:02<br><b>To:</b> = [email protected]<br><b>Subject:</b> = [Bochs-developers] Question about address resolving code = (64bit)<o:p></o:p></span></p><p = class=3DMsoNormal><o:p> </o:p></p><div><div><div><p = class=3DMsoNormal>Hello everyone,<o:p></o:p></p><div><p = class=3DMsoNormal><o:p> </o:p></p></div><div><p = class=3DMsoNormal>I'm working on a project which involves X86 emulation, = and it's going great so far (Bochs is a really good source to learn = from).<o:p></o:p></p></div><div><p class=3DMsoNormal>I've been studying = parts of the code but there's a thing that doesn't make sense to = me.<o:p></o:p></p></div><div><p class=3DMsoNormal>In BxResolve64 = (cpu/cpu.h), why doesn't it do "& i->asize_mask()" like = BxResolve32 does?<o:p></o:p></p></div><div><p class=3DMsoNormal>Surely = you'd still need to cut off high bytes depending on the address-size = prefix, right?<o:p></o:p></p></div><div><p = class=3DMsoNormal><o:p> </o:p></p></div><div><p = class=3DMsoNormal>Thank = you.<o:p></o:p></p></div></div></div></div></div></body></html> ------=_NextPart_000_0020_01D507F3.4B4F1920-- --===============6165353972732929298== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline --===============6165353972732929298== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ bochs-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/bochs-developers --===============6165353972732929298==--