rewrite, its now a vm for a shitty subset of assembly

2026-09-09 00:45:52 -05:00
parent d261a49213
commit a71d73e19d
76 changed files with 703 additions and 99 deletions
@@ -0,0 +1,38 @@
+:: Registers
+Accumulator (A-Register)
+X, Y registers
+Memory (8kb)
+:: Flags
+Z; Zero
+
+:: Helpers
+NVAR <name>, <value>; Sets new a variable and its value
+RVAR <name>; Removes a variable
+SVAR <name>, <newval>; Sets a variables value
+
+:: Commands (Memory)
+LDA <address>; Loads a memory value into ram
+STA <address>; Seeks to a memory value into the accumulator
+LDX; Loads accumulator into X
+LDY; Loads accumulator into Y
+STX; Stores X into accumulator
+STY; Stores Y into accumulator
+SEA <value>; Sets accumulator
+
+:: Commands (Arithmetic)
+ADD; Adds X + Y then stores in Accumulator
+SUB; Subtracts X - Y then stores in Accumulator
+MUL; Multiplies X * Y then stores in Accumulator
+DIV; Divides X / Y then stores in Accumulator
+
+:: Commands (flow control)
+JZE <pointer>; Jumps to a pointer in the program on zero flag
+JMP <pointer>; Jumps to a pointer in the program
+SFG <flag>; Sets a flag to true
+RFG <flag; Sets a flag to false
+
+:: Commands (Debug)
+PRA; Prints accumulator
+PRX; Prints X
+PRY; Prints Y
+PRM <address>; Prints value of memory address