core/math/fixed: implement BrFixedFMac{2,3,4}()

BlazingRenderer · May 25, 2024 · bc4cbea · bc4cbea
1 parent 73cc6ca
commit bc4cbea
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Showing 2 changed files with 22 additions and 5 deletions.
diff --git a/core/inc/math_p.h b/core/inc/math_p.h
@@ -122,17 +122,17 @@ br_fixed_ls BR_PUBLIC_ENTRY BrFixedRcp(br_fixed_ls a);
 
 /* result = a*b + c*d - a & c are fractions
  */
-br_fixed_ls BR_ASM_CALL BrFixedFMac2(br_fixed_lsf a, br_fixed_ls b, br_fixed_lsf c, br_fixed_ls d);
+br_fixed_ls BR_PUBLIC_ENTRY BrFixedFMac2(br_fixed_lsf a, br_fixed_ls b, br_fixed_lsf c, br_fixed_ls d);
 
 /* result = a*b + c*d + e*f - a,c & e are fractions
  */
-br_fixed_ls BR_ASM_CALL BrFixedFMac3(br_fixed_lsf a, br_fixed_ls b, br_fixed_lsf c, br_fixed_ls d, br_fixed_lsf e,
-                                     br_fixed_ls f);
+br_fixed_ls BR_PUBLIC_ENTRY BrFixedFMac3(br_fixed_lsf a, br_fixed_ls b, br_fixed_lsf c, br_fixed_ls d, br_fixed_lsf e,
+                                         br_fixed_ls f);
 
 /* result = a*b + c*d + e*f + g*h (a,c,e,g are fractions)
  */
-br_fixed_ls BR_ASM_CALL BrFixedFMac4(br_fixed_ls a, br_fixed_ls b, br_fixed_ls c, br_fixed_ls d, br_fixed_ls e,
-                                     br_fixed_ls f, br_fixed_ls g, br_fixed_ls h);
+br_fixed_ls BR_PUBLIC_ENTRY BrFixedFMac4(br_fixed_lsf a, br_fixed_ls b, br_fixed_lsf c, br_fixed_ls d, br_fixed_lsf e,
+                                         br_fixed_ls f, br_fixed_lsf g, br_fixed_ls h);
 
 /*
  * Misc. support  functions

diff --git a/core/math/fixed.c b/core/math/fixed.c
@@ -116,6 +116,23 @@ br_fixed_ls BR_PUBLIC_ENTRY BrFixedRcp(br_fixed_ls a)
     return BrFixedDiv(BR_ONE_LS, a);
 }
 
+br_fixed_ls BR_PUBLIC_ENTRY BrFixedFMac2(br_fixed_lsf a, br_fixed_ls b, br_fixed_lsf c, br_fixed_ls d)
+{
+    return BrFixedMac2(a << 1, b, c << 1, d);
+}
+
+br_fixed_ls BR_PUBLIC_ENTRY BrFixedFMac3(br_fixed_lsf a, br_fixed_ls b, br_fixed_lsf c, br_fixed_ls d, br_fixed_lsf e,
+                                         br_fixed_ls f)
+{
+    return BrFixedMac3(a << 1, b, c << 1, d, e << 1, f);
+}
+
+br_fixed_ls BR_PUBLIC_ENTRY BrFixedFMac4(br_fixed_lsf a, br_fixed_ls b, br_fixed_lsf c, br_fixed_ls d, br_fixed_lsf e,
+                                         br_fixed_ls f, br_fixed_lsf g, br_fixed_ls h)
+{
+    return BrFixedMac4(a << 1, b, c << 1, d, e << 1, f, g << 1, h);
+}
+
 /*
  * Given a 16-bit input, generate the output value of a function
  * using a 256-word lookup table with interpolation between entries.