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update lab1-2 pdfs and add comments for bootasm.S in lab1-8

main
chyyuu 12 years ago
parent
commit
d1f5187601
10 changed files with 34 additions and 34 deletions
  1. +6
    -6
      code/lab1/boot/bootasm.S
  2. +4
    -4
      code/lab2/boot/bootasm.S
  3. +4
    -4
      code/lab3/boot/bootasm.S
  4. +4
    -4
      code/lab4/boot/bootasm.S
  5. +4
    -4
      code/lab5/boot/bootasm.S
  6. +4
    -4
      code/lab6/boot/bootasm.S
  7. +4
    -4
      code/lab7/boot/bootasm.S
  8. +4
    -4
      code/lab8/boot/bootasm.S
  9. BIN
      doc/lab1.pdf
  10. BIN
      doc/lab2.pdf

+ 6
- 6
code/lab1/boot/bootasm.S View File

@ -27,23 +27,23 @@ start:
# address line 20 is tied low, so that addresses higher than
# 1MB wrap around to zero by default. This code undoes this.
seta20.1:
inb $0x64, %al # Wait for not busy
inb $0x64, %al # Wait for not busy(8042 input buffer empty).
testb $0x2, %al
jnz seta20.1
movb $0xd1, %al # 0xd1 -> port 0x64
outb %al, $0x64
outb %al, $0x64 # 0xd1 means: write data to 8042's P2 port
seta20.2:
inb $0x64, %al # Wait for not busy
inb $0x64, %al # Wait for not busy(8042 input buffer empty).
testb $0x2, %al
jnz seta20.2
movb $0xdf, %al # 0xdf -> port 0x60
outb %al, $0x60
outb %al, $0x60 # 0xdf = 11011111, means set P2's A20 bit(the 1 bit) to 1
movb $0xdf, %al # 0xdf -> port 0x60
outb %al, $0x60
movb $0xdf, %al # 0xdf -> port 0x60, do it again!
outb %al, $0x60 # 0xdf = 11011111, means set P2's A20 bit(the 1 bit) to 1
# Switch from real to protected mode, using a bootstrap GDT
# and segment translation that makes virtual addresses

+ 4
- 4
code/lab2/boot/bootasm.S View File

@ -28,20 +28,20 @@ start:
# address line 20 is tied low, so that addresses higher than
# 1MB wrap around to zero by default. This code undoes this.
seta20.1:
inb $0x64, %al # Wait for not busy
inb $0x64, %al # Wait for not busy(8042 input buffer empty).
testb $0x2, %al
jnz seta20.1
movb $0xd1, %al # 0xd1 -> port 0x64
outb %al, $0x64
outb %al, $0x64 # 0xd1 means: write data to 8042's P2 port
seta20.2:
inb $0x64, %al # Wait for not busy
inb $0x64, %al # Wait for not busy(8042 input buffer empty).
testb $0x2, %al
jnz seta20.2
movb $0xdf, %al # 0xdf -> port 0x60
outb %al, $0x60
outb %al, $0x60 # 0xdf = 11011111, means set P2's A20 bit(the 1 bit) to 1
probe_memory:
movl $0, 0x8000

+ 4
- 4
code/lab3/boot/bootasm.S View File

@ -28,20 +28,20 @@ start:
# address line 20 is tied low, so that addresses higher than
# 1MB wrap around to zero by default. This code undoes this.
seta20.1:
inb $0x64, %al # Wait for not busy
inb $0x64, %al # Wait for not busy(8042 input buffer empty).
testb $0x2, %al
jnz seta20.1
movb $0xd1, %al # 0xd1 -> port 0x64
outb %al, $0x64
outb %al, $0x64 # 0xd1 means: write data to 8042's P2 port
seta20.2:
inb $0x64, %al # Wait for not busy
inb $0x64, %al # Wait for not busy(8042 input buffer empty).
testb $0x2, %al
jnz seta20.2
movb $0xdf, %al # 0xdf -> port 0x60
outb %al, $0x60
outb %al, $0x60 # 0xdf = 11011111, means set P2's A20 bit(the 1 bit) to 1
probe_memory:
movl $0, 0x8000

+ 4
- 4
code/lab4/boot/bootasm.S View File

@ -28,20 +28,20 @@ start:
# address line 20 is tied low, so that addresses higher than
# 1MB wrap around to zero by default. This code undoes this.
seta20.1:
inb $0x64, %al # Wait for not busy
inb $0x64, %al # Wait for not busy(8042 input buffer empty).
testb $0x2, %al
jnz seta20.1
movb $0xd1, %al # 0xd1 -> port 0x64
outb %al, $0x64
outb %al, $0x64 # 0xd1 means: write data to 8042's P2 port
seta20.2:
inb $0x64, %al # Wait for not busy
inb $0x64, %al # Wait for not busy(8042 input buffer empty).
testb $0x2, %al
jnz seta20.2
movb $0xdf, %al # 0xdf -> port 0x60
outb %al, $0x60
outb %al, $0x60 # 0xdf = 11011111, means set P2's A20 bit(the 1 bit) to 1
probe_memory:
movl $0, 0x8000

+ 4
- 4
code/lab5/boot/bootasm.S View File

@ -28,20 +28,20 @@ start:
# address line 20 is tied low, so that addresses higher than
# 1MB wrap around to zero by default. This code undoes this.
seta20.1:
inb $0x64, %al # Wait for not busy
inb $0x64, %al # Wait for not busy(8042 input buffer empty).
testb $0x2, %al
jnz seta20.1
movb $0xd1, %al # 0xd1 -> port 0x64
outb %al, $0x64
outb %al, $0x64 # 0xd1 means: write data to 8042's P2 port
seta20.2:
inb $0x64, %al # Wait for not busy
inb $0x64, %al # Wait for not busy(8042 input buffer empty).
testb $0x2, %al
jnz seta20.2
movb $0xdf, %al # 0xdf -> port 0x60
outb %al, $0x60
outb %al, $0x60 # 0xdf = 11011111, means set P2's A20 bit(the 1 bit) to 1
probe_memory:
movl $0, 0x8000

+ 4
- 4
code/lab6/boot/bootasm.S View File

@ -28,20 +28,20 @@ start:
# address line 20 is tied low, so that addresses higher than
# 1MB wrap around to zero by default. This code undoes this.
seta20.1:
inb $0x64, %al # Wait for not busy
inb $0x64, %al # Wait for not busy(8042 input buffer empty).
testb $0x2, %al
jnz seta20.1
movb $0xd1, %al # 0xd1 -> port 0x64
outb %al, $0x64
outb %al, $0x64 # 0xd1 means: write data to 8042's P2 port
seta20.2:
inb $0x64, %al # Wait for not busy
inb $0x64, %al # Wait for not busy(8042 input buffer empty).
testb $0x2, %al
jnz seta20.2
movb $0xdf, %al # 0xdf -> port 0x60
outb %al, $0x60
outb %al, $0x60 # 0xdf = 11011111, means set P2's A20 bit(the 1 bit) to 1
probe_memory:
movl $0, 0x8000

+ 4
- 4
code/lab7/boot/bootasm.S View File

@ -28,20 +28,20 @@ start:
# address line 20 is tied low, so that addresses higher than
# 1MB wrap around to zero by default. This code undoes this.
seta20.1:
inb $0x64, %al # Wait for not busy
inb $0x64, %al # Wait for not busy(8042 input buffer empty).
testb $0x2, %al
jnz seta20.1
movb $0xd1, %al # 0xd1 -> port 0x64
outb %al, $0x64
outb %al, $0x64 # 0xd1 means: write data to 8042's P2 port
seta20.2:
inb $0x64, %al # Wait for not busy
inb $0x64, %al # Wait for not busy(8042 input buffer empty).
testb $0x2, %al
jnz seta20.2
movb $0xdf, %al # 0xdf -> port 0x60
outb %al, $0x60
outb %al, $0x60 # 0xdf = 11011111, means set P2's A20 bit(the 1 bit) to 1
probe_memory:
movl $0, 0x8000

+ 4
- 4
code/lab8/boot/bootasm.S View File

@ -28,20 +28,20 @@ start:
# address line 20 is tied low, so that addresses higher than
# 1MB wrap around to zero by default. This code undoes this.
seta20.1:
inb $0x64, %al # Wait for not busy
inb $0x64, %al # Wait for not busy(8042 input buffer empty).
testb $0x2, %al
jnz seta20.1
movb $0xd1, %al # 0xd1 -> port 0x64
outb %al, $0x64
outb %al, $0x64 # 0xd1 means: write data to 8042's P2 port
seta20.2:
inb $0x64, %al # Wait for not busy
inb $0x64, %al # Wait for not busy(8042 input buffer empty).
testb $0x2, %al
jnz seta20.2
movb $0xdf, %al # 0xdf -> port 0x60
outb %al, $0x60
outb %al, $0x60 # 0xdf = 11011111, means set P2's A20 bit(the 1 bit) to 1
probe_memory:
movl $0, 0x8000

BIN
doc/lab1.pdf View File


BIN
doc/lab2.pdf View File


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