diff options
Diffstat (limited to 'content')
7 files changed, 79 insertions, 70 deletions
diff --git a/content/2023-01-14-xpost-matcha-threads/index.md b/content/2023-01-14-xpost-matcha-threads/index.md index a916145..bb90dfd 100644 --- a/content/2023-01-14-xpost-matcha-threads/index.md +++ b/content/2023-01-14-xpost-matcha-threads/index.md @@ -64,7 +64,7 @@ Implementations for different ISAs are available here: - [riscv64][yield-rv64] <div style="overflow: auto;"> -<img src="init-stack.svg" style="float: right; width: 20%; padding-left: 2ch;"> +<img src="init-stack.svg" style="float: right; width: 25%; padding-left: 2ch;"> Since a thread returns into the last stack-frame of the new thread after switching the stack pointers in the yield function, special care must be taken @@ -87,7 +87,7 @@ The figure below depicts *os-level* threading (left) vs *user-level* threading (right). The main difference is that in the case of user-level threading, the operating -system (os) does not now anything about the user threads. In the concrete +system (os) does not know anything about the user threads. In the concrete example, only a **single** user thread can run at any given time, whereas in the case of os-level threading, all threads can run truly parallel. diff --git a/content/2023-01-14-xpost-matcha-threads/init-stack.drawio b/content/2023-01-14-xpost-matcha-threads/init-stack.drawio index eb0859f..d52a249 100644 --- a/content/2023-01-14-xpost-matcha-threads/init-stack.drawio +++ b/content/2023-01-14-xpost-matcha-threads/init-stack.drawio @@ -1,24 +1,33 @@ -<mxfile host="Electron" modified="2024-12-17T22:25:02.025Z" agent="Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) draw.io/23.1.5 Chrome/120.0.6099.109 Electron/28.1.0 Safari/537.36" etag="tKiDaYk_CW1yGI5HMTUf" version="23.1.5" type="device"> +<mxfile host="Electron" modified="2024-12-18T14:39:32.105Z" agent="Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) draw.io/23.1.5 Chrome/120.0.6099.109 Electron/28.1.0 Safari/537.36" etag="AbpP70EIxLziiDFTIb2R" version="23.1.5" 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</mxCell> + <mxCell id="9vlmzOgqaag10kc2mHDY-1" value="" style="endArrow=blockThin;html=1;rounded=0;endFill=1;fontColor=default;" parent="1" edge="1"> + <mxGeometry width="50" height="50" relative="1" as="geometry"> + <mxPoint x="380" y="400" as="sourcePoint" /> + <mxPoint x="380" y="600" as="targetPoint" /> + </mxGeometry> + </mxCell> + <mxCell id="9vlmzOgqaag10kc2mHDY-2" value="<i><font face="monospace">grows downwards</font></i>" style="text;strokeColor=none;align=center;fillColor=none;html=1;verticalAlign=middle;whiteSpace=wrap;rounded=0;rotation=-90;fontColor=default;" parent="1" vertex="1"> + <mxGeometry x="332.5" y="485" width="125" height="30" as="geometry" /> + </mxCell> </root> </mxGraphModel> </diagram> diff --git a/content/2023-01-14-xpost-matcha-threads/init-stack.svg b/content/2023-01-14-xpost-matcha-threads/init-stack.svg index 2abc191..dbc153c 100644 --- a/content/2023-01-14-xpost-matcha-threads/init-stack.svg +++ b/content/2023-01-14-xpost-matcha-threads/init-stack.svg @@ -1,3 +1,3 @@ <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"> -<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="121px" height="241px" viewBox="-0.5 -0.5 121 241"><defs/><g><rect x="0" y="40" width="120" height="200" fill="none" stroke="rgb(240, 240, 240)" pointer-events="all"/><rect x="0" y="0" width="120" height="30" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 15px; margin-left: 1px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font>initial<br />stack layout</font></div></div></div></foreignObject><text x="60" y="19" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">initial...</text></switch></g><rect x="0" y="120" width="120" height="50" fill="none" stroke="#ffffff" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 145px; margin-left: 1px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">initial values for callee-saved registers</div></div></div></foreignObject><text x="60" y="149" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">initial values for c...</text></switch></g><rect x="0" y="80" width="120" height="40" fill="none" stroke="rgb(240, 240, 240)" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 100px; margin-left: 1px;"><div data-drawio-colors="color: #FFFFFF; " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(255, 255, 255); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font style="font-size: 11px;">return frame<br />(thread_create)<br /></font></div></div></div></foreignObject><text x="60" y="104" fill="#FFFFFF" font-family="monospace" font-size="12px" text-anchor="middle">return frame...</text></switch></g><rect x="0" y="40" width="120" height="40" fill="none" stroke="rgb(240, 240, 240)" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; 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line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font>initial<br />stack layout</font></div></div></div></foreignObject><text x="60" y="19" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">initial...</text></switch></g><rect x="0" y="120" width="120" height="50" fill="none" stroke="rgb(240, 240, 240)" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 145px; margin-left: 1px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">initial values for callee-saved registers</div></div></div></foreignObject><text x="60" y="149" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">initial values for c...</text></switch></g><rect x="0" y="80" width="120" height="40" fill="none" stroke="rgb(240, 240, 240)" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 100px; margin-left: 1px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">return frame<br />(thread_create)<br /></div></div></div></foreignObject><text x="60" y="104" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">return frame...</text></switch></g><rect x="0" y="40" width="120" height="40" fill="none" stroke="rgb(240, 240, 240)" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 60px; margin-left: 1px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><span style="font-size: 11px;">thread_create args</span></div></div></div></foreignObject><text x="60" y="64" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">thread_create args</text></switch></g><path d="M 140 40 L 140 231.88" fill="none" stroke="rgb(240, 240, 240)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 140 238.88 L 137.67 231.88 L 142.33 231.88 Z" fill="rgb(240, 240, 240)" stroke="rgb(240, 240, 240)" stroke-miterlimit="10" pointer-events="all"/><rect x="92.5" y="125" width="125" height="30" fill="none" stroke="none" transform="rotate(-90,155,140)" pointer-events="all"/><g transform="translate(-0.5 -0.5)rotate(-90 155 140)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; 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text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 58px; height: 1px; padding-top: 201px; margin-left: 301px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font>thread<br />A</font></div></div></div></foreignObject><text x="330" y="205" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">thread...</text></switch></g><rect x="380" y="181" width="60" height="40" fill="none" stroke="#55ffff" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 58px; height: 1px; padding-top: 201px; margin-left: 381px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font>thread<br />B<br /></font></div></div></div></foreignObject><text x="410" y="205" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">thread...</text></switch></g><rect x="460" y="181" width="60" height="40" fill="none" stroke="#ff55ff" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; 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text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 58px; height: 1px; padding-top: 101px; margin-left: 1px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font>thread<br />A</font></div></div></div></foreignObject><text x="30" y="105" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">thread...</text></switch></g><rect x="0" y="121" width="50" height="10" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe flex-start; width: 48px; height: 1px; padding-top: 126px; margin-left: 2px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font size="1"><i style="font-size: 8px;">OS thread</i></font></div></div></div></foreignObject><text x="2" y="130" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px">OS thread</text></switch></g><rect x="0" y="161" width="60" height="40" fill="none" stroke="#55ffff" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 58px; height: 1px; padding-top: 181px; margin-left: 1px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font>thread<br />B<br /></font></div></div></div></foreignObject><text x="30" y="185" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">thread...</text></switch></g><rect x="0" y="201" width="50" height="10" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe flex-start; width: 48px; height: 1px; padding-top: 206px; margin-left: 2px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font size="1"><i style="font-size: 8px;">OS thread</i></font></div></div></div></foreignObject><text x="2" y="210" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px">OS thread</text></switch></g><rect x="0" y="241" width="60" height="40" fill="none" stroke="#ff55ff" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 58px; height: 1px; padding-top: 261px; margin-left: 1px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font>thread<br />C<br /></font></div></div></div></foreignObject><text x="30" y="265" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">thread...</text></switch></g><rect x="0" y="281" width="50" height="10" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe flex-start; width: 48px; height: 1px; padding-top: 286px; margin-left: 2px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font size="1"><i style="font-size: 8px;">OS thread</i></font></div></div></div></foreignObject><text x="2" y="290" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px">OS thread</text></switch></g><rect x="60" y="101" width="20" height="10" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe flex-start; width: 18px; height: 1px; padding-top: 106px; margin-left: 62px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font size="1"><i style="font-size: 8px;">sp</i></font></div></div></div></foreignObject><text x="62" y="110" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px">sp</text></switch></g><rect x="60" y="181" width="20" height="10" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe flex-start; width: 18px; height: 1px; padding-top: 186px; margin-left: 62px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font size="1"><i style="font-size: 8px;">sp</i></font></div></div></div></foreignObject><text x="62" y="190" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px">sp</text></switch></g><rect x="60" y="261" width="20" height="10" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe flex-start; width: 18px; height: 1px; padding-top: 266px; margin-left: 62px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font size="1"><i style="font-size: 8px;">sp</i></font></div></div></div></foreignObject><text x="62" y="270" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px">sp</text></switch></g><rect x="520" y="281" width="20" height="10" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; 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text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe flex-start; width: 118px; height: 1px; padding-top: 269px; margin-left: 545px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font size="1"><i style="font-size: 8px;">sp when yielding to A</i></font></div></div></div></foreignObject><text x="545" y="273" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px">sp when yielding to A</text></switch></g><path d="M 520 281 L 551.88 281" fill="none" stroke="rgb(240, 240, 240)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 558.88 281 L 551.88 283.33 L 551.88 278.67 Z" fill="rgb(240, 240, 240)" stroke="rgb(240, 240, 240)" stroke-miterlimit="10" pointer-events="all"/></g><switch><g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/><a transform="translate(0,-5)" xlink:href="https://www.drawio.com/doc/faq/svg-export-text-problems" target="_blank"><text text-anchor="middle" font-size="10px" x="50%" y="100%">Text is not SVG - cannot display</text></a></switch></svg>
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requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe center; width: 78px; height: 1px; padding-top: 87px; margin-left: 1px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">core</div></div></div></foreignObject><text x="40" y="99" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">core</text></switch></g><path d="M 75 125 L 120 125 L 120 110 L 153.63 110" fill="none" stroke="rgb(240, 240, 240)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 158.88 110 L 151.88 113.5 L 153.63 110 L 151.88 106.5 Z" fill="rgb(240, 240, 240)" stroke="rgb(240, 240, 240)" stroke-miterlimit="10" pointer-events="all"/><rect x="55" y="115" width="20" height="20" fill="none" stroke="#ffffff" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 18px; height: 1px; padding-top: 125px; margin-left: 56px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">sp</div></div></div></foreignObject><text x="65" y="129" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">sp</text></switch></g><rect x="160" y="90" width="120" height="20" fill="none" stroke="#50fa7b" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 100px; margin-left: 161px;"><div data-drawio-colors="color: #FFFFFF; " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(255, 255, 255); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font style="font-size: 11px;">callee-saved regs</font></div></div></div></foreignObject><text x="220" y="104" fill="#FFFFFF" font-family="monospace" font-size="12px" text-anchor="middle">callee-saved regs</text></switch></g><rect x="160" y="220" width="120" height="20" fill="none" stroke="#ff55ff" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 230px; margin-left: 161px;"><div data-drawio-colors="color: #FFFFFF; " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(255, 255, 255); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font style="font-size: 11px;">callee-saved regs</font></div></div></div></foreignObject><text x="220" y="234" fill="#FFFFFF" font-family="monospace" font-size="12px" text-anchor="middle">callee-saved regs</text></switch></g><rect x="525" y="40" width="120" height="240" fill="none" stroke="rgb(240, 240, 240)" pointer-events="all"/><rect x="525" y="0" width="120" height="30" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 15px; margin-left: 526px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font>process address space</font></div></div></div></foreignObject><text x="585" y="19" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">process address space</text></switch></g><rect x="525" y="70" width="120" height="60" fill="none" stroke="#ffffff" pointer-events="all"/><rect x="525" y="220" width="120" height="40" fill="none" stroke="#ffffff" pointer-events="all"/><rect x="525" y="70" width="120" height="20" fill="url(#mx-pattern-hatch-1-ffffff-0)" stroke="#ffffff" pointer-events="all"/><rect x="635" y="85" width="55" height="30" fill="none" stroke="none" transform="rotate(-90,662.5,100)" pointer-events="all"/><g transform="translate(-0.5 -0.5)rotate(-90 654.5 125.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe flex-start; width: 53px; height: 1px; padding-top: 126px; margin-left: 655px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">stack A</div></div></div></foreignObject><text x="655" y="138" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px">stack A</text></switch></g><rect x="635" y="210" width="55" height="30" fill="none" stroke="none" transform="rotate(-90,662.5,225)" pointer-events="all"/><g transform="translate(-0.5 -0.5)rotate(-90 654.5 250.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe flex-start; width: 53px; height: 1px; padding-top: 251px; margin-left: 655px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">stack B</div></div></div></foreignObject><text x="655" y="263" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px">stack B</text></switch></g><rect x="525" y="180" width="120" height="40" fill="url(#mx-pattern-hatch-1-ffffff-0)" stroke="#ffffff" pointer-events="all"/><path d="M 435 125 L 485 125 L 485 240 L 518.63 240" fill="none" stroke="rgb(240, 240, 240)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 523.88 240 L 516.88 243.5 L 518.63 240 L 516.88 236.5 Z" fill="rgb(240, 240, 240)" stroke="rgb(240, 240, 240)" stroke-miterlimit="10" pointer-events="all"/><rect x="525" y="90" width="120" height="20" fill="none" stroke="#50fa7b" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 100px; margin-left: 526px;"><div data-drawio-colors="color: #FFFFFF; " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(255, 255, 255); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font style="font-size: 11px;">callee-saved regs</font></div></div></div></foreignObject><text x="585" y="104" fill="#FFFFFF" font-family="monospace" font-size="12px" text-anchor="middle">callee-saved regs</text></switch></g><rect x="5" y="115" width="45" height="20" fill="none" stroke="#50fa7b" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 43px; height: 1px; padding-top: 125px; margin-left: 6px;"><div data-drawio-colors="color: #FFFFFF; " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(255, 255, 255); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">regs</div></div></div></foreignObject><text x="28" y="129" fill="#FFFFFF" font-family="monospace" font-size="12px" text-anchor="middle">regs</text></switch></g><rect x="525" y="220" width="120" height="20" fill="none" stroke="#ff55ff" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 230px; margin-left: 526px;"><div data-drawio-colors="color: #FFFFFF; " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(255, 255, 255); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font style="font-size: 11px;">callee-saved regs</font></div></div></div></foreignObject><text x="585" y="234" fill="#FFFFFF" font-family="monospace" font-size="12px" text-anchor="middle">callee-saved regs</text></switch></g><rect x="160" y="360" width="120" height="260" fill="none" stroke="rgb(240, 240, 240)" pointer-events="all"/><rect x="160" y="320" width="120" height="30" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 335px; margin-left: 161px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font>process address space</font></div></div></div></foreignObject><text x="220" y="339" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">process address space</text></switch></g><rect x="160" y="390" width="120" height="60" fill="none" stroke="#ffffff" pointer-events="all"/><rect x="160" y="540" width="120" height="40" fill="none" stroke="#ffffff" pointer-events="all"/><rect x="160" y="390" width="120" height="20" fill="url(#mx-pattern-hatch-1-ffffff-0)" stroke="#ffffff" pointer-events="all"/><rect x="270" y="405" width="55" height="30" fill="none" stroke="none" transform="rotate(-90,297.5,420)" pointer-events="all"/><g transform="translate(-0.5 -0.5)rotate(-90 289.5 445.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe flex-start; width: 53px; height: 1px; padding-top: 446px; margin-left: 290px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">stack A</div></div></div></foreignObject><text x="290" y="458" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px">stack A</text></switch></g><rect x="270" y="530" width="55" height="30" fill="none" stroke="none" transform="rotate(-90,297.5,545)" pointer-events="all"/><g transform="translate(-0.5 -0.5)rotate(-90 289.5 570.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe flex-start; width: 53px; height: 1px; padding-top: 571px; margin-left: 290px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">stack B</div></div></div></foreignObject><text x="290" y="583" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px">stack B</text></switch></g><rect x="160" y="500" width="120" height="40" fill="url(#mx-pattern-hatch-1-ffffff-0)" stroke="#ffffff" pointer-events="all"/><path d="M 75 445 L 120 445 L 120 540 L 153.63 540" fill="none" stroke="rgb(240, 240, 240)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 158.88 540 L 151.88 543.5 L 153.63 540 L 151.88 536.5 Z" fill="rgb(240, 240, 240)" stroke="rgb(240, 240, 240)" stroke-miterlimit="10" pointer-events="all"/><rect x="160" y="410" width="120" height="20" fill="none" stroke="#50fa7b" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 420px; margin-left: 161px;"><div data-drawio-colors="color: #FFFFFF; " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(255, 255, 255); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font style="font-size: 11px;">callee-saved regs</font></div></div></div></foreignObject><text x="220" y="424" fill="#FFFFFF" font-family="monospace" font-size="12px" text-anchor="middle">callee-saved regs</text></switch></g><rect x="0" y="0" width="140" height="60" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe flex-start; width: 138px; height: 1px; padding-top: 7px; margin-left: 2px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font><i>(1) save callee-saved registers of current thread</i></font></div></div></div></foreignObject><text x="2" y="19" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px">(1) save callee-saved r...</text></switch></g><rect x="360" y="0" width="140" height="50" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe flex-start; width: 138px; height: 1px; padding-top: 7px; margin-left: 362px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font><i>(2) move to new stack pointer</i></font></div></div></div></foreignObject><text x="362" y="19" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px">(2) move to new stack p...</text></switch></g><rect x="0" y="320" width="140" height="60" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe flex-start; width: 138px; height: 1px; padding-top: 327px; margin-left: 2px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font><i>(3) restore callee-saved registers of new thread</i></font></div></div></div></foreignObject><text x="2" y="339" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px">(3) restore callee-save...</text></switch></g><rect x="360" y="80" width="80" height="60" fill="none" stroke="#ffffff" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe center; width: 78px; height: 1px; padding-top: 87px; margin-left: 361px;"><div data-drawio-colors="color: rgb(240, 240, 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style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">sp</div></div></div></foreignObject><text x="425" y="129" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">sp</text></switch></g><rect x="365" y="115" width="45" height="20" fill="none" stroke="#50fa7b" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 43px; height: 1px; padding-top: 125px; margin-left: 366px;"><div data-drawio-colors="color: #FFFFFF; " style="box-sizing: 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text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">sp</div></div></div></foreignObject><text x="65" y="449" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">sp</text></switch></g><rect x="5" y="435" width="45" height="20" fill="none" stroke="#ff55ff" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 43px; height: 1px; padding-top: 445px; margin-left: 6px;"><div data-drawio-colors="color: #FFFFFF; " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(255, 255, 255); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">regs</div></div></div></foreignObject><text x="28" y="449" fill="#FFFFFF" font-family="monospace" font-size="12px" text-anchor="middle">regs</text></switch></g></g><switch><g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/><a transform="translate(0,-5)" xlink:href="https://www.drawio.com/doc/faq/svg-export-text-problems" target="_blank"><text text-anchor="middle" font-size="10px" x="50%" y="100%">Text is not SVG - cannot display</text></a></switch></svg>
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text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe flex-start; width: 53px; height: 1px; padding-top: 126px; margin-left: 290px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font face="monospace">stack A</font></div></div></div></foreignObject><text x="290" y="138" fill="rgb(240, 240, 240)" font-family="Helvetica" font-size="12px">stack A</text></switch></g><rect x="270" y="210" width="55" height="30" fill="none" stroke="none" transform="rotate(-90,297.5,225)" pointer-events="all"/><g transform="translate(-0.5 -0.5)rotate(-90 289.5 250.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe flex-start; width: 53px; height: 1px; padding-top: 251px; margin-left: 290px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font face="monospace">stack B</font></div></div></div></foreignObject><text x="290" y="263" fill="rgb(240, 240, 240)" font-family="Helvetica" font-size="12px">stack B</text></switch></g><rect x="160" y="180" width="120" height="40" fill="url(#mx-pattern-hatch-1-f0f0f0-0)" stroke="rgb(240, 240, 240)" pointer-events="all"/><rect x="0" y="80" width="80" height="60" fill="none" stroke="rgb(240, 240, 240)" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe center; width: 78px; height: 1px; padding-top: 87px; margin-left: 1px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">core</div></div></div></foreignObject><text x="40" y="99" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">core</text></switch></g><path d="M 75 125 L 120 125 L 120 110 L 153.63 110" fill="none" stroke="rgb(240, 240, 240)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 158.88 110 L 151.88 113.5 L 153.63 110 L 151.88 106.5 Z" fill="rgb(240, 240, 240)" stroke="rgb(240, 240, 240)" stroke-miterlimit="10" pointer-events="all"/><rect x="55" y="115" width="20" height="20" fill="none" stroke="rgb(240, 240, 240)" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 18px; height: 1px; padding-top: 125px; margin-left: 56px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">sp</div></div></div></foreignObject><text x="65" y="129" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">sp</text></switch></g><rect x="160" y="90" width="120" height="20" fill="none" stroke="#50fa7b" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 100px; margin-left: 161px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font style="font-size: 11px;">callee-saved regs</font></div></div></div></foreignObject><text x="220" y="104" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">callee-saved regs</text></switch></g><rect x="160" y="220" width="120" height="20" fill="none" stroke="#ff55ff" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 230px; margin-left: 161px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font style="font-size: 11px;">callee-saved regs</font></div></div></div></foreignObject><text x="220" y="234" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">callee-saved regs</text></switch></g><rect x="525" y="40" width="120" height="240" fill="none" stroke="rgb(240, 240, 240)" pointer-events="all"/><rect x="525" y="0" width="120" height="30" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 15px; margin-left: 526px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font>process address space</font></div></div></div></foreignObject><text x="585" y="19" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">process address space</text></switch></g><rect x="525" y="110" width="120" height="20" fill="none" stroke="rgb(240, 240, 240)" pointer-events="all"/><rect x="525" y="240" width="120" height="20" fill="none" stroke="rgb(240, 240, 240)" pointer-events="all"/><rect x="525" y="70" width="120" height="20" fill="url(#mx-pattern-hatch-1-f0f0f0-0)" stroke="rgb(240, 240, 240)" pointer-events="all"/><rect x="635" y="85" width="55" height="30" fill="none" stroke="none" transform="rotate(-90,662.5,100)" pointer-events="all"/><g transform="translate(-0.5 -0.5)rotate(-90 654.5 125.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe flex-start; width: 53px; height: 1px; padding-top: 126px; margin-left: 655px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">stack A</div></div></div></foreignObject><text x="655" y="138" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px">stack A</text></switch></g><rect x="635" y="210" width="55" height="30" fill="none" stroke="none" transform="rotate(-90,662.5,225)" pointer-events="all"/><g transform="translate(-0.5 -0.5)rotate(-90 654.5 250.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe flex-start; width: 53px; height: 1px; padding-top: 251px; margin-left: 655px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">stack B</div></div></div></foreignObject><text x="655" y="263" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px">stack B</text></switch></g><rect x="525" y="180" width="120" height="40" fill="url(#mx-pattern-hatch-1-f0f0f0-0)" stroke="rgb(240, 240, 240)" pointer-events="all"/><path d="M 435 125 L 485 125 L 485 240 L 518.63 240" fill="none" stroke="rgb(240, 240, 240)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 523.88 240 L 516.88 243.5 L 518.63 240 L 516.88 236.5 Z" fill="rgb(240, 240, 240)" stroke="rgb(240, 240, 240)" stroke-miterlimit="10" pointer-events="all"/><rect x="525" y="90" width="120" height="20" fill="none" stroke="#50fa7b" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 100px; margin-left: 526px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font style="font-size: 11px;">callee-saved regs</font></div></div></div></foreignObject><text x="585" y="104" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">callee-saved regs</text></switch></g><rect x="5" y="115" width="45" height="20" fill="none" stroke="#50fa7b" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; 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align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 230px; margin-left: 526px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font style="font-size: 11px;">callee-saved regs</font></div></div></div></foreignObject><text x="585" y="234" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">callee-saved regs</text></switch></g><rect x="160" y="360" width="120" height="260" fill="none" stroke="rgb(240, 240, 240)" pointer-events="all"/><rect x="160" y="320" width="120" height="30" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 335px; margin-left: 161px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font>process address space</font></div></div></div></foreignObject><text x="220" y="339" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px" text-anchor="middle">process address space</text></switch></g><rect x="160" y="430" width="120" height="20" fill="none" stroke="rgb(240, 240, 240)" pointer-events="all"/><rect x="160" y="540" width="120" height="40" fill="none" stroke="rgb(240, 240, 240)" pointer-events="all"/><rect x="160" y="390" width="120" height="20" fill="url(#mx-pattern-hatch-1-f0f0f0-0)" stroke="rgb(240, 240, 240)" pointer-events="all"/><rect x="270" y="405" width="55" height="30" fill="none" stroke="none" transform="rotate(-90,297.5,420)" pointer-events="all"/><g transform="translate(-0.5 -0.5)rotate(-90 289.5 445.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; 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text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe flex-start; width: 138px; height: 1px; padding-top: 7px; margin-left: 2px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font><i>(1) save callee-saved registers of current thread</i></font></div></div></div></foreignObject><text x="2" y="19" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px">(1) save callee-saved r...</text></switch></g><rect x="360" y="0" width="140" height="50" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe flex-start; width: 138px; height: 1px; padding-top: 7px; margin-left: 362px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font><i>(2) move to new stack pointer</i></font></div></div></div></foreignObject><text x="362" y="19" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px">(2) move to new stack p...</text></switch></g><rect x="0" y="320" width="140" height="60" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe flex-start; width: 138px; height: 1px; padding-top: 327px; margin-left: 2px;"><div data-drawio-colors="color: rgb(240, 240, 240); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: monospace; color: rgb(240, 240, 240); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font><i>(3) restore callee-saved registers of new thread</i></font></div></div></div></foreignObject><text x="2" y="339" fill="rgb(240, 240, 240)" font-family="monospace" font-size="12px">(3) restore callee-save...</text></switch></g><rect x="360" y="80" width="80" height="60" fill="none" stroke="#ffffff" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; 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