Merge pull request #147 from shattered/_533b17ab

8080: use M addressing mode

src/cowbe/arch8080.cow.ng

@@ -891,6 +891,9 @@ gen STORE4(stk4, DEREF4(hl)) uses all
 gen a := ADD1(b|d|h:lhs, a)
 		{ E_add($lhs); }
 
+gen a := ADD1(DEREF1(hl), a)
+		{ E("\tadd m\n"); }
+
 gen a|b|d|h := ADD1($$, CONSTANT(value==-1))
 		{ E_dcr($$); }
 
@@ -900,6 +903,9 @@ gen a|b|d|h := ADD1($$, CONSTANT(value==1))
 gen a := SUB1(a, b|d|h:rhs)
 		{ E_sub($rhs); }
 
+gen a := SUB1(a, DEREF1(hl))
+		{ E("\tsub m\n"); }
+
 gen a|b|d|h := SUB1($$, CONSTANT(value==1))
 		{ E_dcr($$); }
 
@@ -921,18 +927,27 @@ gen a := NEG1(b|d|h:lhs)
 gen a := OR1(a, b|d|h:lhs)
 		{ E_ora($lhs); }
 
+gen a := OR1(a, DEREF1(hl))
+		{ E("\tora m\n"); }
+
 gen a := OR1(a, CONSTANT():c)
 		{ E_ori($c.value as uint8); }
 
 gen a := AND1(a, b|d|h:lhs)
 		{ E_ana($lhs); }
 
+gen a := AND1(a, DEREF1(hl))
+		{ E("\tana m\n"); }
+
 gen a := AND1(a, CONSTANT():c)
 		{ E_ani($c.value as uint8); }
 
 gen a := EOR1(a, b|d|h:lhs)
 		{ E_xra($lhs); }
 
+gen a := EOR1(a, DEREF1(hl))
+		{ E("\txra m\n"); }
+
 gen a := EOR1(a, CONSTANT():c)
 		{ E_xri($c.value as uint8); }
 
@@ -1288,6 +1303,12 @@ gen BEQ0(CONSTANT():c1, CONSTANT():c2):b uses all
 gen BEQ1(b|d|h:nota, a):b uses all
 		{ bequ1(self.n[0], $nota); }
 
+gen BEQ1(a, DEREF1(hl)) uses all
+{
+	E("\tcmp m\n");
+	E_jumps_jz_jnz(self.n[0]);
+}
+
 gen BEQ1(a, CONSTANT():c):b uses all
 		{ bequ1c(self.n[0], $c.value as uint8); }
 
@@ -1297,6 +1318,12 @@ gen BLTU1(a, b|d|h:rhs):b uses all
 	E_jumps_jc_jnc(self.n[0]);
 }
 
+gen BLTU1(a, DEREF1(hl)) uses all
+{
+	E("\tcmp m\n");
+	E_jumps_jc_jnc(self.n[0]);
+}
+
 gen BLTU1(a, CONSTANT():c):b uses all
 {
 	var v := $c.value as uint8;