Introduction smart contracts
summary
Explains how the Algorand Virtual Machine executes TEAL bytecode as a stack machine (with a stack limit 1000 and volatile scratch space), how PyTEAL compiles to TEAL, and how stateful applications use an approval and a clear program plus a declared state schema (global vs per-account local state). Key constraints: op code budget 6,700 consumed during execution, re‑entrancy is forbidden, up to 256 inner transactions per call, application IDs and an ABI (ARC‑4) describe deployed contracts.
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chapters (21)
- 0:00Intro
- 1:10What's a Smart Contract?
- 2:16What the AVM actually does?
- 3:48How the AVM works?
- 5:15AVM architecture
- 11:57How to program the AVM?
- 14:02Stateless ASC1
- 15:19Creating Smart Signature
- 16:20Contract Account
- 17:40Deploying Applications on chain
- 21:36Application Minimum Balance requirements
- 23:03Calling Applications
- 28:19Interacting with Applications
- 33:49Contract 2 Contract interaction
- 35:25Smart Contract Execution: op-code budget
- 38:21Smart Contract Interface: ABI
- 41:18Smart Signature Example
- 42:48Translating conditions into TEAL...
- 44:22Logic connectors...
- 46:06Execution...
- 48:09Conclusion...
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