LOADMEM= on non-LOADMEM-Capable Memory Models is Silently Ignored

[elamdf]

Background Work

• Yes, I searched the mailing list
• Yes, I searched prior issues
• Yes, I searched the documentation

Chipyard Version and Hash

Release: 1.5.0
Hash: a6a6a6

OS Setup

run any make command with LOADMEM set (or run-binary-hex) on a config that doesn't support LOADMEM (iiuc, any non-SimDRAM model)

Other Setup

No response

Current Behavior

LOADMEM will silently be ignored on non-LOADMEM-capable (e.g. WithSerialTLMem) configurations, leading to confusing behavior when memory is expected to be loaded instantly.

Expected Behavior

An obvious error should be thrown if LOADMEM=1 won't have any effect on memory behavior.

Other Information

No response

[elamdf]

related to #844