added pseudo op for jalr format used Hennesy&Patterson

Unfortunately "Computer Organization and Design RISC-V Edition" use in their examples a non-standard format for jalr. To simply copy and paste their programs, add this pseudo op.

src/PseudoOps.txt

@@ -103,15 +103,16 @@ bgtu t1,t2,label ;bltu RG2, RG1, LAB ;#Branch if Greater Than Unsigned: Branch t
 ble  t1,t2,label ;bge  RG2, RG1, LAB ;#Branch if Less or Equal : Branch to statement at label if t1 <= t2
 bleu t1,t2,label ;bgeu RG2, RG1, LAB ;#Branch if Less or Equal Unsigned : Branch to statement at label if t1 <= t2 (unsigned compare)
 
-j label        ;jal  x0, LAB     ;#Jump : Jump to statement at label
-jal label      ;jal  x1, LAB     ;#Jump And Link: Jump to statement at label and set the return address to ra
-jr t0          ;jalr x0, RG1, 0  ;#Jump Register: Jump to address in t0
-jalr t0        ;jalr x1, RG1, 0  ;#Jump And Link Register: Jump to address in t0 and set the return address to ra
-jr t0, -100    ;jalr x0, RG1, VL2;#Jump Register: Jump to address in t0
-jalr t0, -100  ;jalr x1, RG1, VL2;#Jump And Link Register: Jump to address in t0 and set the return address to ra
-ret            ;jalr x0, x1, 0   ;#Return: return from a subroutine
-call label     ;auipc x6,PCH1    ;jalr x1, x6, PCL1;#CALL: call a far-away subroutine
-tail label     ;auipc x6,PCH1    ;jalr x0, x6, PCL1;#TAIL call: tail call (call without saving return address)a far-away subroutine
+j label         ;jal  x0, LAB      ;#Jump : Jump to statement at label
+jal label       ;jal  x1, LAB      ;#Jump And Link: Jump to statement at label and set the return address to ra
+jr t0           ;jalr x0, RG1, 0   ;#Jump Register: Jump to address in t0
+jalr t0         ;jalr x1, RG1, 0   ;#Jump And Link Register: Jump to address in t0 and set the return address to ra
+jr t0, -100     ;jalr x0, RG1, VL2 ;#Jump Register: Jump to address in t0
+jalr t0, -100   ;jalr x1, RG1, VL2 ;#Jump And Link Register: Jump to address in t0 and set the return address to ra
+jalr t0,-100(t1);jalr RG1, RG4, VL2;#Jump And Link Register: Jump to address in t1 and set the return address to t0
+ret             ;jalr x0, x1, 0    ;#Return: return from a subroutine
+call label      ;auipc x6,PCH1     ;jalr x1, x6, PCL1;#CALL: call a far-away subroutine
+tail label      ;auipc x6,PCH1     ;jalr x0, x6, PCL1;#TAIL call: tail call (call without saving return address)a far-away subroutine
 
 #########################  load/store pseudo-ops start here  ##########################
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