From 7dfcc480ba1e19bd3232349fc733caef94034292 Mon Sep 17 00:00:00 2001
From: stainer_t <thomas.stainer@oecd-nea.org>
Date: Mon, 8 Sep 2025 13:48:49 +0200
Subject: Initial commit from Polytechnique Montreal

---
 Donjon/src/MCRNDF.f | 97 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100644 Donjon/src/MCRNDF.f

(limited to 'Donjon/src/MCRNDF.f')

diff --git a/Donjon/src/MCRNDF.f b/Donjon/src/MCRNDF.f
new file mode 100644
index 0000000..9676347
--- /dev/null
+++ b/Donjon/src/MCRNDF.f
@@ -0,0 +1,97 @@
+*DECK MCRNDF
+      SUBROUTINE MCRNDF(IMPX,NBISO,ISO,IBM,HNOMIS,IPLIB,MY1,MY2,YLDS,
+     1 IADRY,ISTYP)
+*
+*-----------------------------------------------------------------------
+*
+*Purpose:
+* Store records PYNAM, PYMIX and PYIELD into a Microlib.
+*
+*Copyright:
+* Copyright (C) 2022 Ecole Polytechnique de Montreal
+* This library is free software; you can redistribute it and/or
+* modify it under the terms of the GNU Lesser General Public
+* License as published by the Free Software Foundation; either
+* version 2.1 of the License, or (at your option) any later version
+*
+*Author(s): 
+* A. Hebert
+*
+*Parameters: input
+* IMPX    print parameter (equal to zero for no print).
+* NBISO  number of particularized isotopes.
+* ISO     particularized isotope index.
+* IBM     material mixture.
+* HNOMIS  array containing the names of the particularized isotopes.
+* IPLIB   address of the output microlib LCM object.
+* MY1     number of fissile isotopes including macroscopic sets.
+* MY2     number of fission fragment.
+* YLDS    fission yields.
+* IADRY   index in YLDS (<0: fission product; >0: fissile isotope).
+*
+*Parameters: output
+* ISTYP   type of isotope ISO (=1: stable;=2: fissile; =3: fission
+*         product).
+*
+*-----------------------------------------------------------------------
+*
+      USE GANLIB
+      IMPLICIT NONE
+*----
+*  SUBROUTINE ARGUMENTS
+*----
+      TYPE(C_PTR) IPLIB
+      INTEGER IMPX,NBISO,ISO,IBM,MY1,MY2,ISTYP,IADRY(NBISO)
+      DOUBLE PRECISION YLDS(MY1,MY2)
+      CHARACTER(LEN=24) HNOMIS(NBISO)
+*----
+*  LOCAL VARIABLES
+*----
+      INTEGER I,IY1,IY2,JSO
+*----
+*  ALLOCATABLE AYYAYS
+*----
+      INTEGER, ALLOCATABLE, DIMENSION(:) :: IPYMIX
+      REAL, ALLOCATABLE, DIMENSION(:) :: PYIELD
+      CHARACTER(LEN=24), ALLOCATABLE, DIMENSION(:) :: HPYNAM
+*
+      IF(IADRY(ISO).GT.0) THEN
+*       ISO is a fissile isotope
+        ISTYP=2
+      ELSE IF(IADRY(ISO).LT.0) THEN
+*       ISO is a fission product
+        ISTYP=3
+        IY2=-IADRY(ISO)
+        IF(IY2.GT.MY2) CALL XABORT('MCRNDF: MY2 OVERFLOW.')
+        ALLOCATE(HPYNAM(MY1),IPYMIX(MY1),PYIELD(MY1))
+        HPYNAM(:MY1)=' '
+        IPYMIX(:MY1)=0
+        PYIELD(:MY1)=0.0
+        IF(IMPX.GT.2) THEN
+          WRITE(6,'(25H MCRNDF: fission product=,A24,9H mixture=,I8)')
+     1    HNOMIS(ISO),IBM
+        ENDIF
+        DO JSO=1,NBISO
+          IF(IADRY(JSO).GT.0) THEN
+            IY1=IADRY(JSO)
+            IF(IY1.GT.MY1) CALL XABORT('MCRNDF: MY1 OVERFLOW.')
+            HPYNAM(IY1)=HNOMIS(JSO)
+            IPYMIX(IY1)=IBM
+            PYIELD(IY1)=REAL(YLDS(IY1,IY2))
+            IF(IMPX.GT.2) THEN
+              WRITE(6,'(9X,16Hfissile isotope(,I4,2H)=,A24,9H mixture=,
+     1        I8)') IY1,HPYNAM(IY1),IPYMIX(IY1)
+            ENDIF
+          ENDIF
+        ENDDO
+        CALL LCMPTC(IPLIB,'PYNAM',8,MY1,HPYNAM(:8))
+        CALL LCMPUT(IPLIB,'PYMIX',MY1,1,IPYMIX)
+        CALL LCMPUT(IPLIB,'PYIELD',MY1,2,PYIELD)
+        IF(IMPX.GT.2) THEN
+          WRITE(6,'(3X,7HPYIELD=,1P,8E12.4/(8X,10E12.4))') (PYIELD(I),
+     1    I=1,MY1)
+        ENDIF
+        DEALLOCATE(PYIELD,IPYMIX,HPYNAM)
+      ENDIF
+      RETURN
+      END
-- 
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