8.189 U (Disassemble storage)

8.189.1 Function

The U command lets you disassemble storage. The argument specifies the storage address to be dis-
assembled. The length of the storage area can be given as an optional argument. The listed storage area
is formatted as one line per instruction. Every instruction is shown as a hexadecimal string and as read-
able assembler statement. Storage areas that cannot be disassembled (data areas) are marked with
question marks.

8.189.2 Syntax

Descriptive

addr.length addr-addr

Diagram

Êʬ¬¬ U ¬¬¬§¬¬¬¬¬¬¬¬¬§¬¬¬§¬¬¬ addr.length ¬¬¬§¬¬ÊÍ

addr-addr

8.189.3 Parameter

R

The optional 'R' argument will force real address translation mode instead of current
PSW mode.

V

The optional 'V' argument will force virtual address translation mode instead of cur-
rent PSW mode.

P

The optional 'P' argument will force primary space address translation mode in-
stead of current PSW mode.

H

The optional 'H' argument will force home space address translation mode instead
of current PSW mode.

addr.length

Specifies the address of the storage area that is to be disassembled with starting
address and length (from address addr with the length of length). The length value
must be given in hexadecimal.

addr-addr

Specifies an address range with start and end address (from begin address to end
address) of the storage area that is to be disassembled.

8.189.4 Examples

Example 1:

Disassemble 4096 bytes beginning at address 00040130.

HHC02289I u 00040130.1000

HHC02289I P00040130: 90DF02EC STM 13,15,748(0) store_multiple

HHC02289I P00040134: 4166000C LA 6,12(6,0) load_address

HHC02289I P00040138: 58606160 L 6,352(0,6) load

HHC02289I P0004013C: 58300010 L 3,16(0,0) load

HHC02289I P00040140: 58430184 L 4,388(3,0) load

HHC02289I P00040144: 55C06058 CL 12,88(0,6) compare_logical

HHC02289I P00040148: 478060E0 BC 8,224(0,6) branch_on_condition

HHC02289I P0004014C: 8840000A SRL 4,10(0) shift_right_single_logical

HHC02289I P00040150: 47F060E4 BC 15,228(0,6) branch_on_condition

HHC02289I P00040154: 88400005 SRL 4,5(0) shift_right_single_logical

HHC02289I P00040158: 9620820C OI 524(8),32 or_immediate

HHC02289I P0004015C: 55C06058 CL 12,88(0,6) compare_logical

HHC02289I P00040160: 478060F8 BC 8,248(0,6) branch_on_condition

HHC02289I P00040164: 58506228 L 5,552(0,6) load

HHC02289I P00040168: 47F060FC BC 15,252(0,6) branch_on_condition

HHC02289I P0004016C: 5850622C L 5,556(0,6) load

HHC02289I P00040170: 58AB0000 L 10,0(11,0) load

HHC02289I P00040174: 12AA LTR 10,10 load_and_test_register

HHC02289I P00040176: 4770611A BC 7,282(0,6) branch_on_condition

HHC02289I P0004017A: 94DF820C NI 524(8),223 and_immediate

HHC02289I P0004017E: 9102022A TM 554(0),2 test_under_mask

HHC02289I P00040182: 0717 BCR 1,7 branch_on_condition_register

HHC02289I P00040184: 980402B8 LM 0,4,696(0) load_multiple

HHC02289I P00040188: 98DF02EC LM 13,15,748(0) load_multiple

HHC02289I P0004018C: 07F7 BCR 15,7 branch_on_condition_register

HHC02289I P0004018E: 465060FC BCT 5,252(0,6) branch_on_count

HHC02289I P00040192: 55A06230 CL 10,560(0,6) compare_logical

HHC02289I P00040196: 4740620E BC 4,526(0,6) branch_on_condition

HHC02289I P0004019A: 48E301DC LH 14,476(3,0) load_halfword

HHC02289I P0004019E: 54A06234 N 10,564(0,6) and

HHC02289I P000401A2: 15AE CLR 10,14 compare_logical_register

HHC02289I P000401A4: 4720620E BC 2,526(0,6) branch_on_condition

HHC02289I P000401A8: B60082B0 STCTL 0,0,688(8) store_control

HHC02289I P000401AC: B6000308 STCTL 0,0,776(0) store_control

HHC02289I P000401B0: D40303086166 NC 776(4,0),358(6) and_character

HHC02289I P000401B6: D6030308616A OC 776(4,0),362(6) or_character

HHC02289I P000401BC: B7000308 LCTL 0,0,776(0) load_control

HHC02289I P000401C0: AD010308 STOSM 776(0),1 store_then_or_system_mask

HHC02289I P000401C4: ACFE0308 STNSM 776(0),254 store_then_and_system_mask

HHC02289I P000401C8: B6000308 STCTL 0,0,776(0) store_control

HHC02289I P000401CC: D60082B00308 OC 688(1,8),776(0) or_character

.

remaining lines not displayed

.

Figure 336: U command