• Freescale (Motorola) MC68000
• M68000 Family Programmer's Reference Manual (pdf)
• 68000 Family Assembly Language, by Alan Clements
• Appendix B (pdf) - 68000 instructions
• legacy Teesside 68000 cross-assembler & simulator - download - don't need it, historical interest, command line interface
• an alternative to using these command line tools is to use Easy68K - highly recommended - install this for CSCI 221 - will run under wine
• TI-89 Programming - historical interest
  • TI-Calc
  • TIGCC & Virtual TI
  • Patrick Davidson's Web Site

• Computer Organization and Design, 4th edition, by Patterson & Hennessy
  • companion website

• Intel® 64 and IA-32
• basic architecture (pdf)

MIPS:

• MIPS
• Programmed Introduction to MIPS Assembly Language, by Bradley Kjell
• Introduction to RISC Assembly Language Programming, by John Waldron
• SPIM - A MIPS R2000/R3000 Simulator, provided by James Larus

Organizations & Publications:

• ACM SIGARCH - special interest group on computer architecture
• ACM SIGBED - special interest group on embedded systems
• ACM SIGMICRO - microarchitecture

Other useful or interesting things:

• Number Base Conversions
  
• Data Representation Applet
• Read about how a transistor works - then see an animation
• Transistor Timeline
• How computer chips are made, from Intel
• Logism - an open source graphical tool for designing and simulating logic circuits
• The Baby
• Great Microprocessors of the Past and Present
• AMD
• Intel
• Silicon Zoo
• RISC vs. CISC: the Post-RISC Era