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This commit is contained in:
Kartik Agaram 2021-01-13 21:41:45 -08:00
parent 30e4df8172
commit 32bb01ba4a
10 changed files with 19 additions and 0 deletions
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2
baremetal/101screen.subx
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# Primitives for screen control.
== code
pixel: # screen: (addr screen), x: int, y: int, color: int
# . prologue
55/push-ebp

3
baremetal/102keyboard.subx
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@ -1,5 +1,8 @@
# check keyboard for a key
# return 0 on no keypress or unrecognized key
== code
read-key: # kbd: (addr keyboard) -> result/eax: byte
# . prologue
55/push-ebp

4
baremetal/103grapheme.subx
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@ -1,3 +1,7 @@
# Use the built-in font to draw a grapheme to screen.
== code
draw-grapheme: # screen: (addr screen), g: grapheme, x: int, y: int, color: int
# . prologue
55/push-ebp

1
baremetal/108write.subx
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@ -1,3 +1,4 @@
== code
# instruction effective address register displacement immediate
# . op subop mod rm32 base index scale r32
# . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes

1
baremetal/112read-byte.subx
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@ -1,3 +1,4 @@
== code
# instruction effective address register displacement immediate
# . op subop mod rm32 base index scale r32
# . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes

1
baremetal/115write-byte.subx
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@ -1,3 +1,4 @@
== code
# instruction effective address register displacement immediate
# . op subop mod rm32 base index scale r32
# . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes

1
baremetal/120allocate.subx
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@ -1,3 +1,4 @@
== code
# instruction effective address register displacement immediate
# . op subop mod rm32 base index scale r32
# . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes

2
baremetal/313index-bounds-check.subx
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# TODO: bring this back
== code
__check-mu-array-bounds: # index: int, elem-size: int, arr-size: int, function-name: (addr array byte), array-name: (addr array byte)
# . prologue
55/push-ebp

2
baremetal/ex1.subx
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@ -10,6 +10,8 @@
# Or:
# bochs -f baremetal/boot.bochsrc # boot.bochsrc loads disk.img
== code
main:
e9/jump main/disp32

2
baremetal/ex2.subx
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@ -10,6 +10,8 @@
# Expected output:
# html/baremetal.png
== code
main:
# ecx <- start of video memory
8b/-> *0x7f28 1/r32/ecx