permacomputing

commit 0736066708e07324b3f6e3429e56ea635978f46d
parent 8b1664f884fc1019a9fccf29363a1c5dcfad500e
Author: neau <neau@web>
Date:   Wed, 22 Jun 2022 16:35:49 +0200

empty web commit

Diffstat:
M
Uxn.mdwn
 | 
2
+-

1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Uxn.mdwn b/Uxn.mdwn
@@ -7,7 +7,7 @@ Unlike most "fantasy platforms" such as [[TIC-80]], Uxn was designed with an imp
 
 The [[C]] implementation of the virtual machine is about 100 lines. A self-hosted assembler for the Uxntal assembly language is about 400 lines of Uxntal, and assembles to a 1200 bytes rom.
 
-This stack-machine has no registers - Program Counter(PC), Memory(M), Devices(D) and Return Stack(rs). Uxn has 32 opcodes:
+This stack-machine has 32 opcodes, no registers, Program Counter(PC), Memory(M), Devices(D) and Return Stack(rs). Given stack a b c, the c item being the last to be added, and the first to be removed:
 
     80 a b c M[PC+1] 08 a b?c             10 a b M[c8]      18 a b+c
     01 a b c+1       09 a b!c             11 a {M[c8]=b}    19 a b-c