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| author | Kartik Agaram <vc@akkartik.com> | 2021-01-13 21:41:45 -0800 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2021-01-13 21:41:45 -0800 |
| commit | 32bb01ba4a434388cbfda3b28a149790d13d9a95 (patch) | |
| tree | 497ed3c63a9f7bf8f2d86c4edf036d9893307334 /baremetal | |
| parent | 30e4df8172acae37608578efa6e259eeb74ddbba (diff) | |
| download | mu-32bb01ba4a434388cbfda3b28a149790d13d9a95.tar.gz | |
7518
Diffstat (limited to 'baremetal')
| -rw-r--r-- | baremetal/101screen.subx | 2 | ||||
| -rw-r--r-- | baremetal/102keyboard.subx | 3 | ||||
| -rw-r--r-- | baremetal/103grapheme.subx | 4 | ||||
| -rw-r--r-- | baremetal/108write.subx | 1 | ||||
| -rw-r--r-- | baremetal/112read-byte.subx | 1 | ||||
| -rw-r--r-- | baremetal/115write-byte.subx | 1 | ||||
| -rw-r--r-- | baremetal/120allocate.subx | 1 | ||||
| -rw-r--r-- | baremetal/313index-bounds-check.subx | 2 | ||||
| -rw-r--r-- | baremetal/ex1.subx | 2 | ||||
| -rw-r--r-- | baremetal/ex2.subx | 2 |
10 files changed, 19 insertions, 0 deletions
diff --git a/baremetal/101screen.subx b/baremetal/101screen.subx index fb87709c..225efeec 100644 --- a/baremetal/101screen.subx +++ b/baremetal/101screen.subx @@ -1,5 +1,7 @@ # Primitives for screen control. +== code + pixel: # screen: (addr screen), x: int, y: int, color: int # . prologue 55/push-ebp diff --git a/baremetal/102keyboard.subx b/baremetal/102keyboard.subx index 7913d449..b047a7c2 100644 --- a/baremetal/102keyboard.subx +++ b/baremetal/102keyboard.subx @@ -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 diff --git a/baremetal/103grapheme.subx b/baremetal/103grapheme.subx index a536bfed..9b19884f 100644 --- a/baremetal/103grapheme.subx +++ b/baremetal/103grapheme.subx @@ -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 diff --git a/baremetal/108write.subx b/baremetal/108write.subx index e97cbc1f..91a5e680 100644 --- a/baremetal/108write.subx +++ b/baremetal/108write.subx @@ -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 diff --git a/baremetal/112read-byte.subx b/baremetal/112read-byte.subx index 73ea3c87..e6a54fdd 100644 --- a/baremetal/112read-byte.subx +++ b/baremetal/112read-byte.subx @@ -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 diff --git a/baremetal/115write-byte.subx b/baremetal/115write-byte.subx index 32245116..d69663bc 100644 --- a/baremetal/115write-byte.subx +++ b/baremetal/115write-byte.subx @@ -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 diff --git a/baremetal/120allocate.subx b/baremetal/120allocate.subx index fbe998bb..2aaa8e75 100644 --- a/baremetal/120allocate.subx +++ b/baremetal/120allocate.subx @@ -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 diff --git a/baremetal/313index-bounds-check.subx b/baremetal/313index-bounds-check.subx index 8380d741..4624a2ac 100644 --- a/baremetal/313index-bounds-check.subx +++ b/baremetal/313index-bounds-check.subx @@ -1,5 +1,7 @@ # 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 diff --git a/baremetal/ex1.subx b/baremetal/ex1.subx index 78bbe1ae..8a5dfdb7 100644 --- a/baremetal/ex1.subx +++ b/baremetal/ex1.subx @@ -10,6 +10,8 @@ # Or: # bochs -f baremetal/boot.bochsrc # boot.bochsrc loads disk.img +== code + main: e9/jump main/disp32 diff --git a/baremetal/ex2.subx b/baremetal/ex2.subx index 9a72d883..57806e34 100644 --- a/baremetal/ex2.subx +++ b/baremetal/ex2.subx @@ -10,6 +10,8 @@ # Expected output: # html/baremetal.png +== code + main: # ecx <- start of video memory 8b/-> *0x7f28 1/r32/ecx |