Test file for llvm-m6502

m6502-test-1.ll

; Generates ADD #123
define i8 @testAdd(i8 %x) {
entry:
  %result = add i8 %x, 123
  ret i8 %result
}

; Generates ADD 123
define i8 @testLoadAndAdd(i8 %addend) {
entry:
  %ptr = inttoptr i16 123 to i8*
  %loaded = load volatile i8, i8* %ptr
  %result = add i8 %loaded, %addend
  ret i8 %result
}

; Generates LDA #123
define i8 @testConst() {
entry:
  ret i8 123
}

; Generates LDA 123
define i8 @testLoad() {
entry:
  %ptr = inttoptr i16 123 to i8*
  %result = load volatile i8, i8* %ptr
  ret i8 %result
}

; Generates STX 60
;           ADD 60
;           (60 is an arbitrary address to store the addend)
define i8 @testSum(i8 %a, i8 %b) {
entry:
  ; Try switching a and b around!
  %result = add i8 %a, %b
  ret i8 %result
}