grammar: document numbers

2023-08-26 02:31:54 +00:00 · 2023-08-26 02:31:54 +00:00 · 50456f6135
commit 50456f6135
parent ab1a4dc1f0
1 changed files with 9 additions and 5 deletions
--- a/grammar.txt
+++ b/grammar.txt
@ -12,11 +12,15 @@ primary        → number

 identifier → ( [a-z][A-Z][0-9][_] ) +

-number → "%" base2-number
-       | "$" base16-number
-       | "0b" base2-number
-       | "0x" base16-number
-       | base10-number
+base2_number → ( [0-1] ) +
+base10_number → ( [0-9] ) +
+base16_number → ( [0-9][A-F][a-f] ) +
+
+number → "%" base2_number
+       | "$" base16_number
+       | "0b" base2_number
+       | "0x" base16_number
+       | base10_number

 imm → ("#")? expression (":")?
 uimm8  → imm