a

app/Gyehoek/ANF/Syntax.hs

@@ -410,7 +410,7 @@ lowerCdr
 lowerCdr r x e k = do
   x1 <- gensym
   Emit [ QBE.BinaryOp (x1 QBE.:= QBE.Long)
-         QBE.Add x (lowerInt' (sizeofScm `quot` 2))
+         QBE.Add x (lowerInt' sizeofScm)
        , QBE.Load (lowerName r QBE.:= QBE.Long) QBE.Long
          (QBE.ValTemporary x1)
        ]

play/t.anf

@@ -1,4 +1,8 @@
 ;;; -*- mode:scheme -*-
 
-(let ((x0 (prim:cons 4 2)) (x2 (prim:write x1)) (x1 (prim:car x0))) x2)
+(let ((x0 (prim:cons 4 2))
+      (x3 (prim:write x2))
+      (x2 (prim:* 3 x1))
+      (x1 (prim:cdr x0)))
+  x3)
 

play/t.s

@@ -7,7 +7,7 @@ main:
 	callq GC_malloc
 	movq $18, (%rax)
 	movq $10, 8(%rax)
-	movl $18, %edi
+	movl $26, %edi
 	callq scm_write
 	leave
 	ret

play/t.scm

@@ -1,3 +1,2 @@
-(let ((pair (prim:cons 4 2)))
+(prim:write (prim:* 3
-  (begin (prim:write (prim:car pair))
+                    (prim:cdr (prim:cons 4 2))))
-         (prim:write (prim:cdr pair))))

play/t.ssa

@@ -2,10 +2,16 @@ export
 function w $main () {
 @start
     %x0 =l call $GC_malloc (l 16)
-    %.3 =l add %x0, 8
+    %.4 =l add %x0, 8
     storel 18, %x0
-    storel 10, %.3
+    storel 10, %.4
-    %x1 =l loadl %x0
+    %.5 =l add %x0, 8
-    %x2 =l call $scm_write (l %x1)
+    %x1 =l loadl %.5
-    ret %x2
+    %.6 =l shr 14, 2
+    %.7 =l shr %x1, 2
+    %.8 =l mul %.6, %.7
+    %.9 =l shl %.8, 2
+    %x2 =l add %.9, 2
+    %x3 =l call $scm_write (l %x2)
+    ret %x3
 }

runtime/gyehoek.h

@@ -15,6 +15,10 @@ typedef union SCM { struct { scm_t_bits n; } n; } SCM;
 #define SCM_NIMP(x) 		(!SCM_IMP (x))
 #define SCM_HEAP_OBJECT_P(x)    (SCM_NIMP (x))
 
+#define SCM_FALSE 0b00100
+#define SCM_TRUE  0b01100
+#define SCM_EOL   0b10100
+
 
 
 SCM scm_write (SCM);