diff --git a/compiler/mips/cgcpu.pas b/compiler/mips/cgcpu.pas
index 309b4b943d..ed4d342658 100644
--- a/compiler/mips/cgcpu.pas
+++ b/compiler/mips/cgcpu.pas
@@ -517,10 +517,10 @@ begin
       first_int_imreg, []);
 
   rg[R_FPUREGISTER] := trgcpu.Create(R_FPUREGISTER, R_SUBFS{R_SUBFD},
-    [RS_F0, RS_F2, RS_F4, RS_F6,
-    RS_F8, RS_F10, RS_F12, RS_F14,
-    RS_F16, RS_F18, RS_F20, RS_F22,
-    RS_F24, RS_F26, RS_F28, RS_F30],
+    [RS_F0,RS_F1,RS_F2,RS_F3,RS_F4,RS_F5,RS_F6,RS_F7,
+     RS_F8,RS_F9,RS_F10,RS_F11,RS_F12,RS_F13,RS_F14,RS_F15,
+     RS_F16,RS_F17,RS_F18,RS_F19,RS_F20,RS_F21,RS_F22,RS_F23,
+     RS_F24,RS_F25,RS_F26,RS_F27,RS_F28,RS_F29,RS_F30,RS_F31],
     first_fpu_imreg, []);
 
   { needs at least one element for rgobj not to crash }
@@ -542,7 +542,7 @@ end;
 function TCgMPSel.getfpuregister(list: tasmlist; size: Tcgsize): Tregister;
 begin
   if size = OS_F64 then
-    Result := rg[R_FPUREGISTER].getregister(list, R_SUBFD)
+    Result := rg[R_FPUREGISTER].getregister(list, R_SUBFS)
   else
     Result := rg[R_FPUREGISTER].getregister(list, R_SUBFS);
 end;
@@ -696,7 +696,7 @@ begin
     list.concat(taicpu.op_reg_reg(A_MOVE, reg, NR_R0))
   { LUI allows to set the upper 16 bits, so we'll take full advantage of it }
   else if (a and aint($ffff)) = 0 then
-    list.concat(taicpu.op_reg_const(A_LUI, reg, a shr 16))
+    list.concat(taicpu.op_reg_const(A_LUI, reg, aint(a) shr 16))
   else if (a >= simm16lo) and (a <= simm16hi) then
     list.concat(taicpu.op_reg_reg_const(A_ADDIU, reg, NR_R0, a))
   else if (a>=0) and (a <= 65535) then
diff --git a/compiler/mips/cpubase.pas b/compiler/mips/cpubase.pas
index 3674677158..7926019946 100644
--- a/compiler/mips/cpubase.pas
+++ b/compiler/mips/cpubase.pas
@@ -67,7 +67,7 @@ unit cpubase;
       {$i rmipssup.inc}
 
       { No Subregisters }
-      R_SUBWHOLE = R_SUBNONE;
+      R_SUBWHOLE = R_SUBD;
 
       { Available Registers }
       {$i rmipscon.inc}
diff --git a/compiler/mips/mipsreg.dat b/compiler/mips/mipsreg.dat
index 3b97a25205..1e2bf6b645 100644
--- a/compiler/mips/mipsreg.dat
+++ b/compiler/mips/mipsreg.dat
@@ -4,80 +4,80 @@
 ; layout
 ; <name>,<value>,<stdname>,<gasname>,<stabidx>
 ;
-NO,$00,$00,INVALID,INVALID,-1,-1
+NO,$00,$00,$00,INVALID,INVALID,-1,-1
 
-R0,$01,$00,zero,$0,0,0
-R1,$01,$01,at,$1,1,1
-R2,$01,$02,v0,$2,2,2
-R3,$01,$03,v1,$3,3,3
-R4,$01,$04,a0,$4,4,4
-R5,$01,$05,a1,$5,5,5
-R6,$01,$06,a2,$6,6,6
-R7,$01,$07,a3,$7,7,7
-R8,$01,$08,t0,$8,8,8
-R9,$01,$09,t1,$9,9,9
-R10,$01,$0a,t2,$10,10,10
-R11,$01,$0b,t3,$11,11,11
-R12,$01,$0c,t4,$12,12,12
-R13,$01,$0d,t5,$13,13,13
-R14,$01,$0e,t6,$14,14,14
-R15,$01,$0f,t7,$15,15,15
-R16,$01,$10,s0,$16,16,16
-R17,$01,$11,s1,$17,17,17
-R18,$01,$12,s2,$18,18,18
-R19,$01,$13,s3,$19,19,19
-R20,$01,$14,s4,$20,20,20
-R21,$01,$15,s5,$21,21,21
-R22,$01,$16,s6,$22,22,22
-R23,$01,$17,s7,$23,23,23
-R24,$01,$18,t8,$24,24,24
-R25,$01,$19,t9,$25,25,25
-R26,$01,$1a,k0,$26,26,26
-R27,$01,$1b,k1,$27,27,27
-R28,$01,$1c,gp,$28,28,28
-R29,$01,$1d,sp,$29,29,29
-R30,$01,$1e,fp,$30,30,30
-R31,$01,$1f,$a,$31,31,31
+R0,$01,$04,$00,zero,$0,0,0
+R1,$01,$04,$01,at,$1,1,1
+R2,$01,$04,$02,v0,$2,2,2
+R3,$01,$04,$03,v1,$3,3,3
+R4,$01,$04,$04,a0,$4,4,4
+R5,$01,$04,$05,a1,$5,5,5
+R6,$01,$04,$06,a2,$6,6,6
+R7,$01,$04,$07,a3,$7,7,7
+R8,$01,$04,$08,t0,$8,8,8
+R9,$01,$04,$09,t1,$9,9,9
+R10,$01,$04,$0A,t2,$10,10,10
+R11,$01,$04,$0B,t3,$11,11,11
+R12,$01,$04,$0C,t4,$12,12,12
+R13,$01,$04,$0D,t5,$13,13,13
+R14,$01,$04,$0E,t6,$14,14,14
+R15,$01,$04,$0F,t7,$15,15,15
+R16,$01,$04,$10,s0,$16,16,16
+R17,$01,$04,$11,s1,$17,17,17
+R18,$01,$04,$12,s2,$18,18,18
+R19,$01,$04,$13,s3,$19,19,19
+R20,$01,$04,$14,s4,$20,20,20
+R21,$01,$04,$15,s5,$21,21,21
+R22,$01,$04,$16,s6,$22,22,22
+R23,$01,$04,$17,s7,$23,23,23
+R24,$01,$04,$18,t8,$24,24,24
+R25,$01,$04,$19,t9,$25,25,25
+R26,$01,$04,$1A,k0,$26,26,26
+R27,$01,$04,$1B,k1,$27,27,27
+R28,$01,$04,$1C,gp,$28,28,28
+R29,$01,$04,$1D,sp,$29,29,29
+R30,$01,$04,$1E,fp,$30,30,30
+R31,$01,$04,$1F,$a,$31,31,31
 
-F0,$02,$06,F0,f0,32,32
-F1,$02,$06,F1,f1,33,33
-F2,$02,$06,F2,f2,34,34
-F3,$02,$06,F3,f3,35,35
-F4,$02,$06,F4,f4,36,36
-F5,$02,$06,F5,f5,37,37
-F6,$02,$06,F6,f6,38,38
-F7,$02,$06,F7,f7,39,39
-F8,$02,$06,F8,f8,40,40
-F9,$02,$06,F9,f9,41,41
-F10,$02,$06,F10,f10,42,42
-F11,$02,$06,F11,f11,43,43
-F12,$02,$06,F12,f12,44,44
-F13,$02,$06,F13,f13,45,45
-F14,$02,$06,F14,f14,46,46
-F15,$02,$06,F15,f15,47,47
-F16,$02,$06,F16,f16,48,48
-F17,$02,$06,F17,f17,49,49
-F18,$02,$06,F18,f18,50,50
-F19,$02,$06,F19,f19,51,51
-F20,$02,$06,F20,f20,52,52
-F21,$02,$06,F21,f21,53,53
-F22,$02,$06,F22,f22,54,54
-F23,$02,$06,F23,f23,55,55
-F24,$02,$06,F24,f24,56,56
-F25,$02,$06,F25,f25,57,57
-F26,$02,$06,F26,f26,58,58
-F27,$02,$06,F27,f27,59,59
-F28,$02,$06,F28,f28,60,60
-F29,$02,$06,F29,f29,61,61
-F30,$02,$06,F30,f30,62,62
-F31,$02,$06,F31,f31,63,63
+F0,$02,$06,$00,F0,$0,32,32
+F1,$02,$06,$01,F1,$1,33,33
+F2,$02,$06,$02,F2,$2,34,34
+F3,$02,$06,$03,F3,$3,35,35
+F4,$02,$06,$04,F4,$4,36,36
+F5,$02,$06,$05,F5,$5,37,37
+F6,$02,$06,$06,F6,$6,38,38
+F7,$02,$06,$07,F7,$7,39,39
+F8,$02,$06,$08,F8,$8,40,40
+F9,$02,$06,$09,F9,$9,41,41
+F10,$02,$06,$0A,F10,$10,42,42
+F11,$02,$06,$0B,F11,$11,43,43
+F12,$02,$06,$0C,F12,$12,44,44
+F13,$02,$06,$0D,F13,$13,45,45
+F14,$02,$06,$0E,F14,$14,46,46
+F15,$02,$06,$0F,F15,$15,47,47
+F16,$02,$06,$10,F16,$16,48,48
+F17,$02,$06,$11,F17,$17,49,49
+F18,$02,$06,$12,F18,$18,50,50
+F19,$02,$06,$13,F19,$19,51,51
+F20,$02,$06,$14,F20,$20,52,52
+F21,$02,$06,$15,F21,$21,53,53
+F22,$02,$06,$16,F22,$22,54,54
+F23,$02,$06,$17,F23,$23,55,55
+F24,$02,$06,$18,F24,$24,56,56
+F25,$02,$06,$19,F25,$25,57,57
+F26,$02,$06,$1A,F26,$26,58,58
+F27,$02,$06,$1B,F27,$27,59,59
+F28,$02,$06,$1C,F28,$28,60,60
+F29,$02,$06,$1D,F29,$29,61,61
+F30,$02,$06,$1E,F30,$30,62,62
+F31,$02,$06,$1F,F31,$31,63,63
 
-PC,$05,$00,PC,pc,-1,-1
-HI,$05,$01,HI,hi,68,68
-LO,$05,$02,LO,lo,69,69
-CR,$05,$03,CR,cr,70,70
-FCR0,$05,$04,FCR0,fcr0,71,71
-FCR25,$05,$05,FCR25,fcr25,72,72
-FCR26,$05,$06,FCR26,fcr26,73,73
-FCR28,$05,$07,FCR28,fcr28,74,74
-FCSR,$05,$08,FCSR,fcsr,75,75
+PC,$05,$00,$00,PC,pc,-1,-1
+HI,$05,$00,$01,HI,hi,68,68
+LO,$05,$00,$02,LO,lo,69,69
+CR,$05,$00,$03,CR,cr,70,70
+FCR0,$05,$00,$04,FCR0,fcr0,71,71
+FCR25,$05,$00,$05,FCR25,fcr25,72,72
+FCR26,$05,$00,$06,FCR26,fcr26,73,73
+FCR28,$05,$00,$07,FCR28,fcr28,74,74
+FCSR,$05,$00,$08,FCSR,fcsr,75,75
diff --git a/compiler/mips/rgcpu.pas b/compiler/mips/rgcpu.pas
index b1d6607105..b3ea11366d 100644
--- a/compiler/mips/rgcpu.pas
+++ b/compiler/mips/rgcpu.pas
@@ -117,7 +117,8 @@ implementation
 
             helpins:=spilling_create_load(tmpref,tempreg);
             helplist.concat(helpins);
-            list.insertlistafter(pos,helplist)
+            list.insertlistafter(pos,helplist);
+            helplist.free;
           end
         else
           inherited do_spill_read(list,pos,spilltemp,tempreg);
@@ -126,7 +127,6 @@ implementation
 
     procedure trgcpu.do_spill_written(list:tasmlist;pos:tai;const spilltemp:treference;tempreg:tregister);
       var
-        helpins  : tai;
         tmpref   : treference;
         helplist : tasmlist;
         hreg     : tregister;
@@ -151,12 +151,12 @@ implementation
 
             reference_reset_base(tmpref,hreg,0,sizeof(aint));
 
-            helpins:=spilling_create_store(tempreg,tmpref);
-            helplist.concat(helpins);
+            helplist.concat(spilling_create_store(tempreg,tmpref));
             if getregtype(tempreg)=R_INTREGISTER then
               ungetregisterinline(helplist,hreg);
 
-            list.insertlistafter(pos,helplist)
+            list.insertlistafter(pos,helplist);
+            helplist.free;
           end
         else
           inherited do_spill_written(list,pos,spilltemp,tempreg);
diff --git a/compiler/mips/rmipscon.inc b/compiler/mips/rmipscon.inc
index 9178c0eca5..83732b5ea6 100644
--- a/compiler/mips/rmipscon.inc
+++ b/compiler/mips/rmipscon.inc
@@ -1,69 +1,69 @@
 { don't edit, this file is generated from mipsreg.dat }
 NR_NO = tregister($00000000);
-NR_R0 = tregister($01000000);
-NR_R1 = tregister($01000001);
-NR_R2 = tregister($01000002);
-NR_R3 = tregister($01000003);
-NR_R4 = tregister($01000004);
-NR_R5 = tregister($01000005);
-NR_R6 = tregister($01000006);
-NR_R7 = tregister($01000007);
-NR_R8 = tregister($01000008);
-NR_R9 = tregister($01000009);
-NR_R10 = tregister($0100000a);
-NR_R11 = tregister($0100000b);
-NR_R12 = tregister($0100000c);
-NR_R13 = tregister($0100000d);
-NR_R14 = tregister($0100000e);
-NR_R15 = tregister($0100000f);
-NR_R16 = tregister($01000010);
-NR_R17 = tregister($01000011);
-NR_R18 = tregister($01000012);
-NR_R19 = tregister($01000013);
-NR_R20 = tregister($01000014);
-NR_R21 = tregister($01000015);
-NR_R22 = tregister($01000016);
-NR_R23 = tregister($01000017);
-NR_R24 = tregister($01000018);
-NR_R25 = tregister($01000019);
-NR_R26 = tregister($0100001a);
-NR_R27 = tregister($0100001b);
-NR_R28 = tregister($0100001c);
-NR_R29 = tregister($0100001d);
-NR_R30 = tregister($0100001e);
-NR_R31 = tregister($0100001f);
-NR_F0 = tregister($02000006);
-NR_F1 = tregister($02000006);
-NR_F2 = tregister($02000006);
-NR_F3 = tregister($02000006);
-NR_F4 = tregister($02000006);
-NR_F5 = tregister($02000006);
-NR_F6 = tregister($02000006);
-NR_F7 = tregister($02000006);
-NR_F8 = tregister($02000006);
-NR_F9 = tregister($02000006);
-NR_F10 = tregister($02000006);
-NR_F11 = tregister($02000006);
-NR_F12 = tregister($02000006);
-NR_F13 = tregister($02000006);
-NR_F14 = tregister($02000006);
-NR_F15 = tregister($02000006);
-NR_F16 = tregister($02000006);
-NR_F17 = tregister($02000006);
-NR_F18 = tregister($02000006);
-NR_F19 = tregister($02000006);
-NR_F20 = tregister($02000006);
-NR_F21 = tregister($02000006);
-NR_F22 = tregister($02000006);
-NR_F23 = tregister($02000006);
-NR_F24 = tregister($02000006);
-NR_F25 = tregister($02000006);
-NR_F26 = tregister($02000006);
-NR_F27 = tregister($02000006);
-NR_F28 = tregister($02000006);
-NR_F29 = tregister($02000006);
-NR_F30 = tregister($02000006);
-NR_F31 = tregister($02000006);
+NR_R0 = tregister($01040000);
+NR_R1 = tregister($01040001);
+NR_R2 = tregister($01040002);
+NR_R3 = tregister($01040003);
+NR_R4 = tregister($01040004);
+NR_R5 = tregister($01040005);
+NR_R6 = tregister($01040006);
+NR_R7 = tregister($01040007);
+NR_R8 = tregister($01040008);
+NR_R9 = tregister($01040009);
+NR_R10 = tregister($0104000A);
+NR_R11 = tregister($0104000B);
+NR_R12 = tregister($0104000C);
+NR_R13 = tregister($0104000D);
+NR_R14 = tregister($0104000E);
+NR_R15 = tregister($0104000F);
+NR_R16 = tregister($01040010);
+NR_R17 = tregister($01040011);
+NR_R18 = tregister($01040012);
+NR_R19 = tregister($01040013);
+NR_R20 = tregister($01040014);
+NR_R21 = tregister($01040015);
+NR_R22 = tregister($01040016);
+NR_R23 = tregister($01040017);
+NR_R24 = tregister($01040018);
+NR_R25 = tregister($01040019);
+NR_R26 = tregister($0104001A);
+NR_R27 = tregister($0104001B);
+NR_R28 = tregister($0104001C);
+NR_R29 = tregister($0104001D);
+NR_R30 = tregister($0104001E);
+NR_R31 = tregister($0104001F);
+NR_F0 = tregister($02060000);
+NR_F1 = tregister($02060001);
+NR_F2 = tregister($02060002);
+NR_F3 = tregister($02060003);
+NR_F4 = tregister($02060004);
+NR_F5 = tregister($02060005);
+NR_F6 = tregister($02060006);
+NR_F7 = tregister($02060007);
+NR_F8 = tregister($02060008);
+NR_F9 = tregister($02060009);
+NR_F10 = tregister($0206000A);
+NR_F11 = tregister($0206000B);
+NR_F12 = tregister($0206000C);
+NR_F13 = tregister($0206000D);
+NR_F14 = tregister($0206000E);
+NR_F15 = tregister($0206000F);
+NR_F16 = tregister($02060010);
+NR_F17 = tregister($02060011);
+NR_F18 = tregister($02060012);
+NR_F19 = tregister($02060013);
+NR_F20 = tregister($02060014);
+NR_F21 = tregister($02060015);
+NR_F22 = tregister($02060016);
+NR_F23 = tregister($02060017);
+NR_F24 = tregister($02060018);
+NR_F25 = tregister($02060019);
+NR_F26 = tregister($0206001A);
+NR_F27 = tregister($0206001B);
+NR_F28 = tregister($0206001C);
+NR_F29 = tregister($0206001D);
+NR_F30 = tregister($0206001E);
+NR_F31 = tregister($0206001F);
 NR_PC = tregister($05000000);
 NR_HI = tregister($05000001);
 NR_LO = tregister($05000002);
diff --git a/compiler/mips/rmipsgas.inc b/compiler/mips/rmipsgas.inc
index 30ed1ea53f..961dd679d9 100644
--- a/compiler/mips/rmipsgas.inc
+++ b/compiler/mips/rmipsgas.inc
@@ -32,38 +32,38 @@
 '$29',
 '$30',
 '$31',
-'f0',
-'f1',
-'f2',
-'f3',
-'f4',
-'f5',
-'f6',
-'f7',
-'f8',
-'f9',
-'f10',
-'f11',
-'f12',
-'f13',
-'f14',
-'f15',
-'f16',
-'f17',
-'f18',
-'f19',
-'f20',
-'f21',
-'f22',
-'f23',
-'f24',
-'f25',
-'f26',
-'f27',
-'f28',
-'f29',
-'f30',
-'f31',
+'$0',
+'$1',
+'$2',
+'$3',
+'$4',
+'$5',
+'$6',
+'$7',
+'$8',
+'$9',
+'$10',
+'$11',
+'$12',
+'$13',
+'$14',
+'$15',
+'$16',
+'$17',
+'$18',
+'$19',
+'$20',
+'$21',
+'$22',
+'$23',
+'$24',
+'$25',
+'$26',
+'$27',
+'$28',
+'$29',
+'$30',
+'$31',
 'pc',
 'hi',
 'lo',
diff --git a/compiler/mips/rmipsgri.inc b/compiler/mips/rmipsgri.inc
index 6cd775f824..31f6709d80 100644
--- a/compiler/mips/rmipsgri.inc
+++ b/compiler/mips/rmipsgri.inc
@@ -1,70 +1,70 @@
 { don't edit, this file is generated from mipsreg.dat }
 1,
-2,
-11,
-12,
-13,
-14,
-15,
-16,
-17,
-18,
-19,
-20,
-3,
-21,
-22,
-23,
-24,
-25,
-26,
-27,
-28,
-29,
-30,
-4,
-31,
-32,
-5,
-6,
-7,
-8,
-9,
-10,
-0,
-68,
 33,
+2,
 34,
+11,
 43,
+12,
 44,
+13,
 45,
+14,
 46,
+15,
 47,
+16,
 48,
+17,
 49,
+18,
 50,
+19,
 51,
+20,
 52,
+3,
 35,
+21,
 53,
+22,
 54,
+23,
 55,
+24,
 56,
+25,
 57,
+26,
 58,
+27,
 59,
+28,
 60,
+29,
 61,
+30,
 62,
+4,
 36,
+31,
 63,
 64,
+32,
+5,
 37,
+6,
 38,
+7,
 39,
+8,
 40,
+9,
 41,
+10,
 42,
+0,
+68,
 69,
 70,
 71,
diff --git a/compiler/mips/rmipsnum.inc b/compiler/mips/rmipsnum.inc
index b2ff0daa9c..225796f402 100644
--- a/compiler/mips/rmipsnum.inc
+++ b/compiler/mips/rmipsnum.inc
@@ -1,75 +1,75 @@
 { don't edit, this file is generated from mipsreg.dat }
-tregister($00000000),
-tregister($01000000),
-tregister($01000001),
-tregister($01000002),
-tregister($01000003),
-tregister($01000004),
-tregister($01000005),
-tregister($01000006),
-tregister($01000007),
-tregister($01000008),
-tregister($01000009),
-tregister($0100000a),
-tregister($0100000b),
-tregister($0100000c),
-tregister($0100000d),
-tregister($0100000e),
-tregister($0100000f),
-tregister($01000010),
-tregister($01000011),
-tregister($01000012),
-tregister($01000013),
-tregister($01000014),
-tregister($01000015),
-tregister($01000016),
-tregister($01000017),
-tregister($01000018),
-tregister($01000019),
-tregister($0100001a),
-tregister($0100001b),
-tregister($0100001c),
-tregister($0100001d),
-tregister($0100001e),
-tregister($0100001f),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($02000006),
-tregister($05000000),
-tregister($05000001),
-tregister($05000002),
-tregister($05000003),
-tregister($05000004),
-tregister($05000005),
-tregister($05000006),
-tregister($05000007),
-tregister($05000008)
+NR_NO,
+NR_R0,
+NR_R1,
+NR_R2,
+NR_R3,
+NR_R4,
+NR_R5,
+NR_R6,
+NR_R7,
+NR_R8,
+NR_R9,
+NR_R10,
+NR_R11,
+NR_R12,
+NR_R13,
+NR_R14,
+NR_R15,
+NR_R16,
+NR_R17,
+NR_R18,
+NR_R19,
+NR_R20,
+NR_R21,
+NR_R22,
+NR_R23,
+NR_R24,
+NR_R25,
+NR_R26,
+NR_R27,
+NR_R28,
+NR_R29,
+NR_R30,
+NR_R31,
+NR_F0,
+NR_F1,
+NR_F2,
+NR_F3,
+NR_F4,
+NR_F5,
+NR_F6,
+NR_F7,
+NR_F8,
+NR_F9,
+NR_F10,
+NR_F11,
+NR_F12,
+NR_F13,
+NR_F14,
+NR_F15,
+NR_F16,
+NR_F17,
+NR_F18,
+NR_F19,
+NR_F20,
+NR_F21,
+NR_F22,
+NR_F23,
+NR_F24,
+NR_F25,
+NR_F26,
+NR_F27,
+NR_F28,
+NR_F29,
+NR_F30,
+NR_F31,
+NR_PC,
+NR_HI,
+NR_LO,
+NR_CR,
+NR_FCR0,
+NR_FCR25,
+NR_FCR26,
+NR_FCR28,
+NR_FCSR
diff --git a/compiler/mips/rmipssup.inc b/compiler/mips/rmipssup.inc
index e1994dfae7..a5d819db30 100644
--- a/compiler/mips/rmipssup.inc
+++ b/compiler/mips/rmipssup.inc
@@ -10,12 +10,12 @@ RS_R6 = $06;
 RS_R7 = $07;
 RS_R8 = $08;
 RS_R9 = $09;
-RS_R10 = $0a;
-RS_R11 = $0b;
-RS_R12 = $0c;
-RS_R13 = $0d;
-RS_R14 = $0e;
-RS_R15 = $0f;
+RS_R10 = $0A;
+RS_R11 = $0B;
+RS_R12 = $0C;
+RS_R13 = $0D;
+RS_R14 = $0E;
+RS_R15 = $0F;
 RS_R16 = $10;
 RS_R17 = $11;
 RS_R18 = $12;
@@ -26,44 +26,44 @@ RS_R22 = $16;
 RS_R23 = $17;
 RS_R24 = $18;
 RS_R25 = $19;
-RS_R26 = $1a;
-RS_R27 = $1b;
-RS_R28 = $1c;
-RS_R29 = $1d;
-RS_R30 = $1e;
-RS_R31 = $1f;
-RS_F0 = $06;
-RS_F1 = $06;
-RS_F2 = $06;
-RS_F3 = $06;
-RS_F4 = $06;
-RS_F5 = $06;
+RS_R26 = $1A;
+RS_R27 = $1B;
+RS_R28 = $1C;
+RS_R29 = $1D;
+RS_R30 = $1E;
+RS_R31 = $1F;
+RS_F0 = $00;
+RS_F1 = $01;
+RS_F2 = $02;
+RS_F3 = $03;
+RS_F4 = $04;
+RS_F5 = $05;
 RS_F6 = $06;
-RS_F7 = $06;
-RS_F8 = $06;
-RS_F9 = $06;
-RS_F10 = $06;
-RS_F11 = $06;
-RS_F12 = $06;
-RS_F13 = $06;
-RS_F14 = $06;
-RS_F15 = $06;
-RS_F16 = $06;
-RS_F17 = $06;
-RS_F18 = $06;
-RS_F19 = $06;
-RS_F20 = $06;
-RS_F21 = $06;
-RS_F22 = $06;
-RS_F23 = $06;
-RS_F24 = $06;
-RS_F25 = $06;
-RS_F26 = $06;
-RS_F27 = $06;
-RS_F28 = $06;
-RS_F29 = $06;
-RS_F30 = $06;
-RS_F31 = $06;
+RS_F7 = $07;
+RS_F8 = $08;
+RS_F9 = $09;
+RS_F10 = $0A;
+RS_F11 = $0B;
+RS_F12 = $0C;
+RS_F13 = $0D;
+RS_F14 = $0E;
+RS_F15 = $0F;
+RS_F16 = $10;
+RS_F17 = $11;
+RS_F18 = $12;
+RS_F19 = $13;
+RS_F20 = $14;
+RS_F21 = $15;
+RS_F22 = $16;
+RS_F23 = $17;
+RS_F24 = $18;
+RS_F25 = $19;
+RS_F26 = $1A;
+RS_F27 = $1B;
+RS_F28 = $1C;
+RS_F29 = $1D;
+RS_F30 = $1E;
+RS_F31 = $1F;
 RS_PC = $00;
 RS_HI = $01;
 RS_LO = $02;
diff --git a/compiler/utils/mkmpsreg.pp b/compiler/utils/mkmpsreg.pp
index b3494a50c4..b8cae43d03 100644
--- a/compiler/utils/mkmpsreg.pp
+++ b/compiler/utils/mkmpsreg.pp
@@ -26,6 +26,7 @@ var s : string;
     names,
     regtypes,
     supregs,
+    subregs,
     numbers,
     stdnames,
     gasnames,
@@ -205,6 +206,8 @@ begin
         readcomma;
         regtypes[regcount]:=readstr;
         readcomma;
+        subregs[regcount]:=readstr;
+        readcomma;
         supregs[regcount]:=readstr;
         readcomma;
         stdnames[regcount]:=readstr;
@@ -221,7 +224,7 @@ begin
             writeln('Line: "',s,'"');
             halt(1);
           end;
-        numbers[regcount]:=regtypes[regcount]+'0000'+copy(supregs[regcount],2,255);
+        numbers[regcount]:=regtypes[regcount]+copy(subregs[regcount],2,255)+'00'+copy(supregs[regcount],2,255);
         if i<length(s) then
           begin
             writeln('Extra chars at end of line, at line ',line);
@@ -275,9 +278,9 @@ begin
         end
       else
         first:=false;
-      writeln(supfile,'RS_',names[i],' = ',supregs[i],';');
       writeln(confile,'NR_'+names[i],' = ','tregister(',numbers[i],')',';');
-      write(numfile,'tregister(',numbers[i],')');
+      writeln(supfile,'RS_',names[i],' = ',supregs[i],';');
+      write(numfile,'NR_',names[i]);
       write(stdfile,'''',stdnames[i],'''');
       write(gasfile,'''',gasnames[i],'''');
       write(stabfile,stabs[i]);