ECE291 Computer Engineering II Lockwood, Fall 1997

Machine Problem 4: Grading Report

Please print this page and provide it to the TA when you demonstrate your machine problem.
The TA should verify each functionality item, initial the 'Demo' box, assign functionality and bonus points,
then copy your files to the HANDIN floppy. This page should be stapled to the front of your printed .ASM program.

General Notes

All procedures should preserve required registers
(C Calls must preserve DS, SS, SI, DI)
(ASM Calls should preserve all registers)
Results should exactly match those for the library-based code.
Use of MASM dot commands (.if .else .while ..) is prohibited.
Points are only awarded for routines that work completely.

Category	Min	Max
DrawPoly Reads X1,Y1,Y3,X2,Y2,Y4,Color as C-style arguments Written using logical, modular code w/multiple subroutines. Implements Bresenham's algorithm Works Completely for 'MP4 1' Properly Draws all 8 trianges in 4 polygons of 'MP4 2' ( -2.5 points / bad triangle in 'MP4 2' (8 total) )	0	20
LoadPCX Writes data to segment specified by argument (not necessarily video memory nor a hardcoded value) Reads data from filename specified by argument (not hardcoded) Loads VGA Palette registers with image colors	0	10
MoveScreen Moves 320*200=64,000 pixels between segments Uses most efficient opcodes for routine. (-2 for implementations that use bytes or words)	0	5
AnimateScreen Transfers 320*200=64,000 pixels between segments Horizontally shifts image by specified amount (-3 if image is vertically shifted by a line)	0	5
InstKey/KeyInterrupt/DeInstallKey Replaces then restores keyboard ISR (Int 9) Updates variables cs:ExitFlag, cs:Xoffset, cs:Yoffset Interpretes keystrokes to allow movement to all 9 regions in 'MP4 4'.	0	10
Functionality SubTotal	0	50
Comments ( percentage of code written)* Clear and precise line & procedure comments (describes all major routines): -0 Sports Announcer comments (line-by-line): -1 Unclear comments: -1 Sparse comments: -3	-5	0
Technique & Style ( percentage of code written)* Compact and Efficient code: -0 Really bad code in DrawPoly: -3 Contains repeated code (lacks loops): -3 Makes poor use of registers and/or variables: -2	-5	0
I/O Specs & Modularity ( percentage of code written)* Violates specifications for given subroutines: -5 (all points) Preserves valus of registers: -5 (all points)	-5	0
Penalty/Bonus Before 5pm, Fri 11/14/97: +1 pt/weekday After 5pm, Fri 11/14/97: -5 pts/weekday	-50	5
Total	0	55