tweaks to compiler doc

1 files changed, 5 insertions, 4 deletions

diff --git a/mu_instructions b/mu_instructions
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--- a/mu_instructions
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 ## Mu's instructions and their table-driven translation
 
 See http://akkartik.name/akkartik-convivial-20200607.pdf for the complete
-story. In brief: Mu is a statement-oriented language. Blocks consist of flat
-lists of instructions. Instructions can have inputs after the operation, and
-outputs to the left of a '<-'. Inputs and outputs must be variables. They can't
-include nested expressions. Variables can be literals ('n'), or live in a
+story. In brief: Mu is a memory-safe statement-oriented language where most
+statements translate to a single instruction of machine code. Blocks consist of
+flat lists of instructions. Instructions can have inputs after the operation,
+and outputs to the left of a '<-'. Inputs and outputs must be variables. They
+can't include nested expressions. Variables can be literals ('n'), or live in a
 register ('var/reg') or in memory ('var') at some 'stack-offset' from the 'ebp'
 register. Outputs must be registers. To modify a variable in memory, pass it in
 by reference as an input. (Inputs are more precisely called 'inouts'.)