commit 398ef5

2026-05-21 09:41:14 Bob Green: -/-

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`programming/machine library.md` ..
@@ 72,3 72,11 @@

	```C
	```
+
+	## Safe Memory Access
+
+	```C
+	int peek(uint8_t *addr);
+	int poke(uint8_t *addr, uint8_t val);
+	```
+	`peek()` attempts to read a byte from memory, returning the value read, or -1 if the read failed due to a Bus Error. Similarly, `poke()` attempts to write a byte to memory, returning -1 on a Bus Error.