From d3a0cc3a8ba6dfeb64d3faeffdeb6845b60e5840 Mon Sep 17 00:00:00 2001 From: Yuchen Pei Date: Sat, 20 Jan 2018 15:41:49 +0100 Subject: rearranged the dir for github - removed tools and pdfs - rearranged the projects dirs - added md files - other minor changes --- .../FunctionCalls/NestedCall/NestedCallStack.html | 306 --------------------- 1 file changed, 306 deletions(-) delete mode 100644 projects/08/FunctionCalls/NestedCall/NestedCallStack.html (limited to 'projects/08/FunctionCalls/NestedCall/NestedCallStack.html') diff --git a/projects/08/FunctionCalls/NestedCall/NestedCallStack.html b/projects/08/FunctionCalls/NestedCall/NestedCallStack.html deleted file mode 100644 index 70582b6..0000000 --- a/projects/08/FunctionCalls/NestedCall/NestedCallStack.html +++ /dev/null @@ -1,306 +0,0 @@ - - - - - NestedCall.tst — Stack Frames - - - - - - - -
- - - - - - - - - - - -
Bootstrap init
Pointers
0256SP
1-1LCL
2-2ARG
3-3THIS
4-4THAT
Stack
256???←SP

- This is how my boot­strap code initial­izes the pointers before calling Sys.init(). -

- Setting the LCL, ARG, THIS and THAT point­ers to known illegal values helps identify - when a pointer is used before it is initial­ized. -

- (If you are running the NestedCall test with­out boot­strap code, you will not see this state.)

- 		- - - - - - - - - - - - - - - - -
Entry to Sys.init()
Pointers
0261SP
1261LCL
2256ARG
3-3THIS
4-4THAT
Stack
256*Return IP←ARG
257-1Saved LCL
258-2Saved ARGSys.init
259-3Saved THIS frame
260-4Saved THAT
261???←LCL, SP

- This is how NestedCall.tst initial­izes the pointers and stack. This is what RAM looks - like after my boot­strap calls Sys.init(). -

- (If your VM trans­lation includes the boot­strap, the -1 through -4 values may be - different if your boot­strap initial­izes them.)

- 		- - - - - - - - - - - - - - - - - - - - -
Entry to Sys.main()
Pointers
0266SP
1266LCL
2261ARG
34000THIS
45000THAT
Stack
256*Return IP
257-1Saved LCL
258-2Saved ARGSys.init
259-3Saved THIS frame
260-4Saved THAT
261*Return IP←ARG
262261Saved LCL
263256Saved ARGSys.main
2644000Saved THIS frame
2655000Saved THAT
266???←LCL, SP
- 		- - - - - - - - - - - - - - - - - - - - - - - - - -
After Sys.main() prologue
Pointers
0271SP
1266LCL
2261ARG
34000THIS
45000THAT
Stack
256*Return IP
257-1Saved LCL
258-2Saved ARGSys.init
259-3Saved THIS frame
260-4Saved THAT
261*Return IP←ARG
262261Saved LCL
263256Saved ARGSys.main
2644000Saved THIS frame
2655000Saved THAT
2660local 0←LCL
2670local 1
2680local 2
2690local 3
2700local 4
271???←SP

- The function prologue is the assembly language code generated for the - "function" VM command. -
- 		- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Entry to Sys.add12(123)
Pointers
0277SP
1277LCL
2271ARG
34001THIS
45001THAT
Stack
256*Return IP
257-1Saved LCL
258-2Saved ARGSys.init
259-3Saved THIS frame
260-4Saved THAT
261*Return IP
262261Saved LCL
263256Saved ARGSys.main
2644000Saved THIS frame
2655000Saved THAT
2660local 0
267200local 1
26840local 2
2696local 3
2700local 4
271123argument 0←ARG
272*Return IP
273266Saved LCLSys.add12
274261Saved ARG frame
2754001Saved THIS
2765001Saved THAT
277???←LCL, SP
-
- -

- - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Before Sys.add12() return
Pointers
0278SP
1277LCL
2271ARG
34002THIS
45002THAT
Stack
256*Return IP
257-1Saved LCL
258-2Saved ARGSys.init
259-3Saved THIS frame
260-4Saved THAT
261*Return IP
262261Saved LCL
263256Saved ARGSys.main
2644000Saved THIS frame
2655000Saved THAT
2660local 0
267200local 1
26840local 2
2696local 3
2700local 4
271123argument 0←ARG
272*Return IP
273266Saved LCLSys.add12
274261Saved ARG frame
2754001Saved THIS
2765001Saved THAT
277135Return value←LCL
278???←SP
- 		- - - - - - - - - - - - - - - - - - - - - - - - - - -
After Sys.add12() return
Pointers
0272SP
1266LCL
2261ARG
34001THIS
45001THAT
Stack
256*Return IP
257-1Saved LCL
258-2Saved ARGSys.init
259-3Saved THIS frame
260-4Saved THAT
261*Return IP←ARG
262261Saved LCL
263256Saved ARGSys.main
2644000Saved THIS frame
2655000Saved THAT
2660local 0←LCL
267200local 1
26840local 2
2696local 3
2700local 4
271135Return value
272???←SP
- 		- - - - - - - - - - - - - - - - - - - - - - - - - - -
Before Sys.main() return
Pointers
0272SP
1266LCL
2261ARG
34001THIS
45001THAT
Stack
256*Return IP
257-1Saved LCL
258-2Saved ARGSys.init
259-3Saved THIS frame
260-4Saved THAT
261*Return IP←ARG
262261Saved LCL
263256Saved ARGSys.main
2644000Saved THIS frame
2655000Saved THAT
2660local 0←LCL
267200local 1
26840local 2
2696local 3
2700local 4
271246Return value
272???←SP
- 		- - - - - - - - - - - - - - - - -
After Sys.main() return
Pointers
0262SP
1261LCL
2256ARG
34000THIS
45000THAT
Stack
256*Return IP←ARG
257-1Saved LCL
258-2Saved ARGSys.init
259-3Saved THIS frame
260-4Saved THAT
261246Return value←LCL
262???←SP
- 		- - - - - - - - - - - - - - - -
In Sys.init() halt loop
Pointers
0261SP
1261LCL
2256ARG
34000THIS
45000THAT
Stack
256*Return IP←ARG
257-1Saved LCL
258-2Saved ARGSys.init
259-3Saved THIS frame
260-4Saved THAT
261???←LCL, SP
-
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