'Zip dig' diaporamas de présentation

Introduction to Computer Systems 15-213/18-243, spring 2009 8 th Lecture, Feb. 5 th

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Roadmap

Memory & data Integers & floats Machine code & C x86 assembly Procedures & stacks Arrays & structs Memory & caches Processes Virtual memory Memory allocation Java vs. C. Roadmap. C:. Java:. Car c = new Car(); c.setMiles(100); c.setGals(17); float mpg = c.getMPG();.

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Lecture 9 Aggregate Data Organization

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Machine-Level Programming IV: Structured Data

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Machine-Level Programming IV: Structured Data

Machine-Level Programming IV: Structured Data. CS 47. Topics Arrays Structs Unions. CS 47 Spring 2008. class11.ppt. Basic Data Types. Integral Stored & operated on in general registers Signed vs. unsigned depends on instructions used Intel GAS Bytes C byte b 1 [ unsigned ] char

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Machine-Level Programming IV: Structured Data

Machine-Level Programming IV: Structured Data. CS 367. Topics Arrays Structs Unions. lecture11.ppt. Basic Data Types. Integral Stored & operated on in general registers Signed vs. unsigned depends on instructions used Intel GAS Bytes C byte b 1 [ unsigned ] char

559 views • 45 slides

Machine-Level Programming IV: Structured Data

Machine-Level Programming IV: Structured Data. CSC 333. Topics Arrays Structs Unions. Basic Data Types. Integral Stored & operated on in general registers Signed vs. unsigned depends on instructions used Intel GAS Bytes C byte b 1 [ unsigned ] char word w 2 [ unsigned ] short

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Machine-Level Programming IV: Structured Data

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Machine-Level Programming IV: x86-64 Procedures, Data

Machine-Level Programming IV: x86-64 Procedures, Data. Today. Procedures (x86-64) Arrays One-dimensional Multi-dimensional (nested) Multi-level Structures Allocation Access. x86-64 Integer Registers: Usage Conventions. %rax. %r8. Return value. Argument #5. %rbx. %r9.

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Machine-Level Programming IV: x86-64 Procedures, Data CS 220: Computer Systems II

Machine-Level Programming IV: x86-64 Procedures, Data CS 220: Computer Systems II. Today. Procedures (x86-64) Arrays One-dimensional Multi-dimensional (nested) Multi-level Structures Allocation Access. x86-64 Integer Registers. %rax. %r8. %eax. %r8d. Twice the number of registers

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Machine-Level Programming IV: x86-64 Procedures, Data

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Announcements

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Machine-Level Programming IV: x86-64 Procedures, Data

Machine-Level Programming IV: x86-64 Procedures, Data. Today. Procedures (x86-64) Arrays One-dimensional Multi-dimensional (nested) Multi-level Structures Allocation Access. x86-64 Integer Registers: Usage Conventions. %rax. %r8. Return value. Argument #5. %rbx. %r9.

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Referencing Examples

zip_dig cmu;. zip_dig nwu;. zip_dig mit;. 1. 6. 0. 2. 5. 0. 1. 2. 2. 0. 3. 1. 3. 1. 9. 16. 56. 36. 40. 60. 20. 24. 44. 64. 48. 68. 28. 72. 52. 32. 76. 36. 56. Referencing Examples. Code Does Not Do Any Bounds Checking! Reference Address Value Guaranteed?

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Referencing Examples

zip_dig cmu;. zip_dig nwu;. zip_dig mit;. 1. 6. 0. 2. 5. 0. 1. 2. 2. 0. 3. 1. 3. 1. 9. 16. 56. 36. 40. 60. 20. 24. 44. 64. 48. 68. 28. 72. 52. 32. 76. 36. 56. Referencing Examples. Code Does Not Do Any Bounds Checking! Reference Address Value Guaranteed?

393 views • 34 slides

Machine-Level Prog. IV - Structured Data

Machine-Level Prog. IV - Structured Data. Today Arrays Structures Unions Next time Arrays. Basic data types. Integral Stored & operated on in general registers Signed vs. unsigned depends on instructions used Intel GAS Bytes C byte b 1 [ unsigned ] char

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Machine-Level Programming 5 Structured Data

Machine-Level Programming 5 Structured Data. Topics Arrays. Basic Data Types. Integral Stored & operated on in general registers Signed vs. unsigned depends on instructions used Intel GAS Bytes C byte b 1 [ unsigned ] char word w 2 [ unsigned ] short

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Structured Data I: Homogenous Data Feb. 10, 2000

Structured Data I: Homogenous Data Feb. 10, 2000. 15-213. Topics Arrays Single Nested Pointers Multilevel Arrays Optimized Array Code. class08.ppt. Basic Data Types. Integral Stored & operated on in general registers Signed vs. unsigned depends on instructions used Intel GAS Bytes C

343 views • 26 slides