Working on fixing test errors - 202/350 working.

src/test/ref/const-int-cast-problem.asm

@@ -0,0 +1,19 @@
+// Test a problem with converting casted constant numbers to fixed type constant integers
+.pc = $801 "Basic"
+:BasicUpstart(main)
+.pc = $80d "Program"
+  .label SCREEN = $400
+main: {
+    ldx #$79
+  b1:
+    txa
+    lsr
+    lsr
+    lsr
+    lsr
+    sta SCREEN,x
+    inx
+    cpx #$7b
+    bne b1
+    rts
+}

src/test/ref/helloworld0.asm

@@ -0,0 +1,16 @@
+// Tests minimal hello world
+.pc = $801 "Basic"
+:BasicUpstart(main)
+.pc = $80d "Program"
+  .label SCREEN = $400
+main: {
+    ldx #0
+  b1:
+    lda msg,x
+    sta SCREEN,x
+    inx
+    cpx #$c
+    bne b1
+    rts
+}
+  msg: .text "hello world!@"

src/test/ref/tod018-problem.asm

@@ -0,0 +1,12 @@
+// Tests a problem with tod018 not calculating types correctly
+.pc = $801 "Basic"
+:BasicUpstart(main)
+.pc = $80d "Program"
+main: {
+    .label D018 = $d018
+    .label screen = $400
+    .const d018val = >screen&$3fff
+    lda #d018val
+    sta D018
+    rts
+}

src/test/ref/typeid-plus-byte-problem.asm

@@ -0,0 +1,12 @@
+// Test that byte+byte creates a byte - even when there is a value overflow
+.pc = $801 "Basic"
+:BasicUpstart(main)
+.pc = $80d "Program"
+  .label SCREEN = $400
+main: {
+    .const ubc2 = $fa
+    .const ubc1 = $c+$d+$e
+    lda #ubc1+ubc2
+    sta SCREEN
+    rts
+}

src/test/ref/typemismatch.asm

@@ -0,0 +1,7 @@
+// Type mismatch - should fail gracefully
+.pc = $801 "Basic"
+:BasicUpstart(main)
+.pc = $80d "Program"
+main: {
+    rts
+}