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| author | Kartik Agaram <vc@akkartik.com> | 2020-01-02 14:12:46 -0800 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2020-01-02 14:12:46 -0800 |
| commit | 8bbafb13974bbfd7223e8c69156493a123702c0d (patch) | |
| tree | 5226f807ced58b0c4f96ec59f596834e2f31ea81 | |
| parent | 42b4da908edc6a35a864bd656aca737f70823adf (diff) | |
| download | mu-8bbafb13974bbfd7223e8c69156493a123702c0d.tar.gz | |
5872
| -rw-r--r-- | README.md | 14 | ||||
| -rw-r--r-- | apps/ex1.mu | 13 | ||||
| -rw-r--r-- | apps/ex1.subx | 2 |
3 files changed, 21 insertions, 8 deletions
diff --git a/README.md b/README.md index cddf9c7b..af139f95 100644 --- a/README.md +++ b/README.md @@ -329,13 +329,13 @@ transparently copy it to the `data` segment and replace it with its address. Strings are the only place where a SubX word is allowed to contain spaces. That should be enough information for writing SubX programs. The `apps/` -directory provides some fodder for practice in the `apps/ex*` files, giving a -more gradual introduction to SubX features. This repo includes binaries for -all examples. At any commit, an example's binary should be identical bit for -bit with the result of translating the corresponding `.subx` file. The binary -should also be natively runnable on a Linux system running on Intel x86 -processors, either 32- or 64-bit. If either of these invariants is broken it's -a bug on my part. +directory provides some fodder for practice in the `apps/ex*.subx` files, +giving a more gradual introduction to SubX features. This repo includes +binaries for all examples. At any commit, an example's binary should be +identical bit for bit with the result of translating the corresponding `.subx` +file. The binary should also be natively runnable on a Linux system running on +Intel x86 processors, either 32- or 64-bit. If either of these invariants is +broken it's a bug on my part. ## Running diff --git a/apps/ex1.mu b/apps/ex1.mu new file mode 100644 index 00000000..f6d67001 --- /dev/null +++ b/apps/ex1.mu @@ -0,0 +1,13 @@ +# First example: return the answer to the Ultimate Question of Life, the +# Universe, and Everything. +# +# To run: +# $ ./translate_mu apps/ex1.mu +# $ ./a.elf +# Expected result: +# $ echo $? +# 42 + +fn main -> result/ebx: int { + result <- copy 0x2a # Mu requires hexadecimal +} diff --git a/apps/ex1.subx b/apps/ex1.subx index 5558d310..a851613c 100644 --- a/apps/ex1.subx +++ b/apps/ex1.subx @@ -12,7 +12,7 @@ Entry: # exit(42) -bb/copy-to-ebx 2a/imm32 # 42 in hex +bb/copy-to-ebx 0x2a/imm32 # 42 in hex e8/call syscall_exit/disp32 # . . vim:nowrap:textwidth=0 |