Add bitwise tests, squash all arithmetic tests into test_arithmetic

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
2020-02-25 14:10:21 -05:00
parent 362590292a
commit bc4f59ecad
7 changed files with 194 additions and 174 deletions
--- a/tests/test_arithmetic.asm
+++ b/tests/test_arithmetic.asm
@@ -0,0 +1,114 @@
+.section data $0x0 {
+    number: .u8 $10
+
+    main:
+        ; Test addition
+        mov %status, $1
+        add %r0, $1
+        cmpeq %r0, $1
+        jz end
+
+        ; Test addition from a register
+        mov %status, $2
+        add %r0, %r0
+        cmpeq %r0, $2
+        jz end
+        
+        ; Test addition from a u8 location
+        mov %status, $3
+        add %r0, (number)u8
+        cmpeq %r0, $12
+        jz end
+
+        ; Test addition overflow
+        mov %status, $4
+        add %r0, $0xFFFFFFFFFFFFFFFF
+        cmpeq %r0, $11
+        jz end
+
+        ; Test subtraction
+        mov %status, $5
+        mov %r0, (number)u8
+        sub %r0, $1
+        cmpeq %r0, $9
+        jz end
+
+        ; Test subtraction from a register
+        mov %status, $6
+        mov %r1, $2
+        sub %r0, %r1
+        cmpeq %r0, $7
+        jz end
+        
+        ; Test subtraction overflow
+        mov %status, $7
+        sub %r0, $8
+        cmpeq %r0, $0xFFFFFFFFFFFFFFFF
+        jz end
+
+        ; Test multiplication
+        mov %status, $8
+        mov %r0, (number)u8
+        mul %r0, $1
+        cmpeq %r0, $10
+        jz end
+
+        ; Test multiplication from a register
+        mov %status, $9
+        mov %r1, $2
+        mul %r0, %r1
+        cmpeq %r0, $20
+        jz end
+        
+        ; Test negative multiplication
+        mov %status, $10
+        mul %r0, $0xFFFFFFFFFFFFFFFF        ; -1
+        cmpeq %r0, $0xFFFFFFFFFFFFFFEC      ; -20
+        jz end
+
+        ; Test division
+        mov %status, $11
+        mov %r0, (number)u8
+        div %r0, $2
+        cmpeq %r0, $5
+        jz end
+
+        ; Test integer division
+        mov %status, $12
+        mov %r1, $2
+        div %r0, %r1
+        cmpeq %r0, $2
+        jz end
+        
+        ; Test negative division with idiv
+        mov %status, $13
+        idiv %r0, $0xFFFFFFFFFFFFFFFF        ; -1
+        cmpeq %r0, $0xFFFFFFFFFFFFFFFE      ; -2
+        jz end
+
+        ; Test modulo
+        mov %status, $14
+        mov %r0, (number)u8
+        mod %r0, $4
+        cmpeq %r0, $2
+        jz end
+
+        ; Test mod from a register
+        mov %status, $15
+        mod %r0, %r0
+        cmpeq %r0, $0
+        jz end
+        
+        ; TODO : Test mod and div by zero
+
+        mov %status, $0
+    end:
+        halt
+
+    .export main
+}
+
+.meta {
+    entry: main
+}
+