Under section_5 “Back substitution”
Original text:
“Starting from bottom to top
.R2:
…R1=R1-1.R2=…
…R0=R0-1/2.R1=…”
“Follow this instruction will never pass the test because R1 already becomes zero after the R1 subtracts R2. When R0 subtracts R1, the value will multiply zero!”
Recommended correction: “My test passed after the correction”
“Starting from bottom to top
.R2:
…R1=R1-1.R2=…
…R0=R0-1/2.R2=…”