sample_programs

Sixteen ARM64 assembly programs for afs-as, collected in one root-level directory so it is easy to poke at the assembler without hunting through test fixtures.

Build afs-as

Run this from the repo root:

cargo build -p afs-as

Assemble, Link, And Run One Sample

This example assembles and runs 02_hello_world.s without leaving generated files in the repo:

SDKROOT=$(xcrun --show-sdk-path)
target/debug/afs-as sample_programs/02_hello_world.s -o /tmp/02_hello_world.o
ld /tmp/02_hello_world.o -o /tmp/02_hello_world -lSystem -syslibroot "$SDKROOT" -e _main
/tmp/02_hello_world

For samples that report their result through the process exit code, check it with:

echo $?

Assemble And Link Any Sample

Replace NAME with a file stem like 09_array_sum or 15_fp_sqrt:

SDKROOT=$(xcrun --show-sdk-path)
NAME=09_array_sum
target/debug/afs-as "sample_programs/$NAME.s" -o "/tmp/$NAME.o"
ld "/tmp/$NAME.o" -o "/tmp/$NAME" -lSystem -syslibroot "$SDKROOT" -e _main
"/tmp/$NAME"
echo $?

16_snake_live.s is a live terminal program, so run it directly in an interactive terminal instead of expecting a useful exit-code script.

Assemble Everything

mkdir -p /tmp/afs-samples
for src in sample_programs/*.s; do
  name=$(basename "${src%.s}")
  target/debug/afs-as "$src" -o "/tmp/afs-samples/$name.o"
done

Assemble, Link, And Run Everything

mkdir -p /tmp/afs-samples
SDKROOT=$(xcrun --show-sdk-path)

for src in sample_programs/*.s; do
  name=$(basename "${src%.s}")
  target/debug/afs-as "$src" -o "/tmp/afs-samples/$name.o"
  ld "/tmp/afs-samples/$name.o" -o "/tmp/afs-samples/$name" -lSystem -syslibroot "$SDKROOT" -e _main
  printf "%s: " "$name"
  "/tmp/afs-samples/$name"
  status=$?
  printf "exit=%s\n" "$status"
done

Live Snake

SDKROOT=$(xcrun --show-sdk-path)
target/debug/afs-as sample_programs/16_snake_live.s -o /tmp/16_snake_live.o
ld /tmp/16_snake_live.o -o /tmp/16_snake_live -lSystem -syslibroot "$SDKROOT" -e _main
/tmp/16_snake_live

Controls:

W A S D move
q quits

Sample Index