fix setvl. not setting CR0 properly

[openpower-isa.git] / src / openpower / decoder / isa / svshape.py

diff --git a/src/openpower/decoder/isa/svshape.py b/src/openpower/decoder/isa/svshape.py
index e22395c25db4f3e867b3388837a25dfd78651d88..5530b28de0ed0a5c8f139bc35156a04173b10d31 100644 (file)
--- a/src/openpower/decoder/isa/svshape.py
+++ b/src/openpower/decoder/isa/svshape.py
@@ -22,8 +22,9 @@ from openpower.util import log
 
 
 class SVSHAPE(SelectableInt):
-    def __init__(self, value):
+    def __init__(self, value, gpr=None):
         SelectableInt.__init__(self, value, 32)
+        self.gpr = gpr # for Indexed mode
         offs = 0
         # set up sub-fields from Record layout
         self.fsi = {}
@@ -37,6 +38,9 @@ class SVSHAPE(SelectableInt):
             log("SVSHAPE setup field", field, offs, end)
             offs = end
 
+    def copy(self):
+        return SVSHAPE(self.value, self.gpr)
+
     def is_indexed(self):
         "REMAP Indexed Mode"
         return self.mode == 0b00 and self.submode2 in [0b110, 0b111]
@@ -144,8 +148,19 @@ class SVSHAPE(SelectableInt):
     def offset(self, value):
         self.fsi['offset'].eq(value)
 
+    def postprocess(self, idx, step):
+        if self.mode != 0b00 or not self.is_indexed():
+            return idx
+        if self.gpr is None:
+            return idx
+        if self.xdimsz == 1 and self.ydimsz == 1:
+            idx = step # no Index remapping
+        remap = self.gpr(self.svgpr+idx).value # TODO: elwidths
+        log ("indexed_iterator", self.svgpr, idx, remap)
+        return remap
+
     def get_iterator(self):
-        log ("SVSHAPE get_iterator", self.mode, self.ydimsz)
+        log ("SVSHAPE get_iterator", self.mode, self.ydimsz, self.is_indexed())
         if self.mode == 0b00:
             iterate_fn = iterate_indices
         elif self.mode in [0b01, 0b11]:
@@ -161,13 +176,13 @@ class SVSHAPE(SelectableInt):
             elif self.ydimsz in [6, 14, 15]:
                 iterate_fn = iterate_dct_inner_halfswap_loadstore
         # create a **NEW** iterator each time this is called
-        return iterate_fn(deepcopy(self))
+        return iterate_fn(self.copy())
 
 
 if __name__ == '__main__':
     os.environ['SILENCELOG'] = "1"
-    xdim = 2
-    ydim = 3
+    xdim = 3
+    ydim = 2000
     zdim = 1
     SVSHAPE0 = SVSHAPE(0)
     SVSHAPE0.lims = [xdim, ydim, zdim]
@@ -175,9 +190,9 @@ if __name__ == '__main__':
     SVSHAPE0.mode = 0b00
     SVSHAPE0.skip = 0b00
     SVSHAPE0.offset = 0       # experiment with different offset, here
-    SVSHAPE0.invxyz = [0,0,1] # inversion if desired
+    SVSHAPE0.invxyz = [0,0,1] # xy inversion (indices 0,1) , skip if desired (2)
 
-    VL = xdim * ydim * zdim
+    VL = 6 # xdim * ydim * zdim
 
     print ("Matrix Indexed Mode", SVSHAPE0.order, SVSHAPE0.invxyz)
     for idx, new_idx in enumerate(SVSHAPE0.get_iterator()):
@@ -187,7 +202,6 @@ if __name__ == '__main__':
 
     print ("")
 
-
     xdim = 3
     ydim = 2
     zdim = 1