Initial Commit

Makefile

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+all: link
+
+build: build-asm build-cpp build-main
+
+asm: build-main link-asm
+cpp: build-main link-cpp
+
+
+build-main:
+	g++ -o main.o -c main.cpp
+
+build-asm:
+	nasm -felf64 calc.asm
+
+build-cpp:
+	g++ -o calc-cpp.o -c calc.cpp
+
+link: build-main link-asm link-cpp
+
+link-asm: build-asm
+	g++ -o calc calc.o main.o
+
+link-cpp: build-cpp
+	g++ -o calc-cpp calc-cpp.o main.o
+
+clean: 
+	rm *.o *.txt calc calc-cpp
+
+run: build link
+	./calc
+
+test: build link
+	echo "24 12" | /bin/time -v -o asm.txt ./calc
+	echo "24 12" | /bin/time -v -o cpp.txt ./calc-cpp

asm.txt

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+	Command being timed: "./calc"
+	User time (seconds): 0.00
+	System time (seconds): 0.00
+	Percent of CPU this job got: 100%
+	Elapsed (wall clock) time (h:mm:ss or m:ss): 0:00.00
+	Average shared text size (kbytes): 0
+	Average unshared data size (kbytes): 0
+	Average stack size (kbytes): 0
+	Average total size (kbytes): 0
+	Maximum resident set size (kbytes): 3824
+	Average resident set size (kbytes): 0
+	Major (requiring I/O) page faults: 0
+	Minor (reclaiming a frame) page faults: 142
+	Voluntary context switches: 0
+	Involuntary context switches: 0
+	Swaps: 0
+	File system inputs: 0
+	File system outputs: 0
+	Socket messages sent: 0
+	Socket messages received: 0
+	Signals delivered: 0
+	Page size (bytes): 4096
+	Exit status: 0

calc.asm

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+section .data
+    feet_in3: dq 1728.00
+    pi: dq 3.141592
+    half_it: dq 0.5
+
+section .text
+global hole_calc
+
+hole_calc:
+                                    ; xmm0 Diameter xmm1 Volume
+                                    ; This program converts the volume of a cylinder to a depth to dig a hole. 
+                                    ;
+    mulsd   xmm1, [rel half_it]     ; Convert Diameter // radius = diameter / 2.0;
+    mulsd   xmm0, [rel feet_in3]    ; Multiply diameter by 1728.00, result in xmm1 // volumeInCubicInches = volume * 1728.00;
+    mulsd   xmm1, xmm1              ; Square Diameter, load into xmm0
+    mulsd   xmm1, [rel pi]          ; Diameter Squared Times Pi, loaded into xmm0
+    divsd   xmm0, xmm1              ; Product the final result.
+    ret
+    

calc.cpp

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+using namespace std;
+extern "C" double hole_calc(double volume, double diameter)
+{
+    // Convert diameter to radius
+    double radius = diameter / 2.0;
+
+    //Calculate the volume in cubic inches
+    double volumeInCubicInches = volume * 1728.00;
+
+    // Calculate the depth using the volume, radius, and pi
+    double depth = volumeInCubicInches / ((radius * radius) * 3.141592);
+
+    return depth;
+}

cpp.txt

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+	Command being timed: "./calc-cpp"
+	User time (seconds): 0.00
+	System time (seconds): 0.00
+	Percent of CPU this job got: 100%
+	Elapsed (wall clock) time (h:mm:ss or m:ss): 0:00.00
+	Average shared text size (kbytes): 0
+	Average unshared data size (kbytes): 0
+	Average stack size (kbytes): 0
+	Average total size (kbytes): 0
+	Maximum resident set size (kbytes): 3820
+	Average resident set size (kbytes): 0
+	Major (requiring I/O) page faults: 0
+	Minor (reclaiming a frame) page faults: 141
+	Voluntary context switches: 0
+	Involuntary context switches: 4
+	Swaps: 0
+	File system inputs: 0
+	File system outputs: 0
+	Socket messages sent: 0
+	Socket messages received: 0
+	Signals delivered: 0
+	Page size (bytes): 4096
+	Exit status: 0

main.cpp

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+#include <iostream>
+using namespace std;
+// hole_calc(volume, diameter)
+extern "C" double hole_calc(double, double);
+
+int main()
+{
+    double diameter, volume;
+    cout << "Please enter the diameter in in, press enter and then the volume in cubic feet, and press enter again." << endl;
+    cin >> diameter >> volume;
+    cout << "Dig hole to " << hole_calc(volume, diameter) << " in deep." << endl;
+    return 0;
+}