improved de6502 - needs to write to disk instead of cli

2025-07-09 08:11:49 -04:00
parent 8c08555003
commit a5042383c9
11 changed files with 552 additions and 13 deletions
@@ -0,0 +1,3 @@
+To Build
+
+64tass -a -b -o <your_bin> <your_asm>
@@ -0,0 +1,26 @@
+    * = $A000
+    .fill Reset - *, $ea
+Reset:
+    SEI
+    CLD
+    LDX #$FF
+    TXS
+    ; Drop to the start of our main loop
+MainLoop:
+    LDA #$AA
+    ROR
+    JMP MainLoop
+
+; What to do when we get a NMI
+NMI:
+    RTI
+
+; What do we get when we get an interrupt
+IRQ:
+    RTI
+
+; setup the requirements for the CPU
+    * = $FFF8
+    .word NMI
+    .word Reset
+    .word IRQ
@@ -0,0 +1,22 @@
+   * = $0000
+   .fill Reset - *, $ea
+
+Reset:
+   SEI
+   CLD
+   LDX #$FF
+   TXS
+
+MainLoop:
+   NOP
+   JMP MainLoop
+
+NMI:
+   RTI
+IRQ:
+   RTI
+
+   * = $FFF8
+   .word NMI
+   .word RESET
+   .word IRQ