HP 48gII Graphing, 50g Graphing manual Disassemblers, Level

Disassemblers

ASM→

The ASM→ disassembler converts Saturn assembly into a source string.

The syntax used is MASD syntax, in mode 015. Each line contains an address and an instruction. If the system flag –71 is set (with 71 SF ), addresses are not shown, except for the destinations of jumps. In this case, the resulting source may be then reassembled if needed.

ASM→ can either disassemble a CODE object or the memory area between 2 given addresses (as binary integers). Example:

71 CF2 (default)	71 SF2
AE734 GOSBVL 0679B	GOSBVL 0679B
AE73B LC 01000	LC 01000
AE742 CA A	*AE742
AE744 GONC AE742	CA A
AE747 GOVLNG 138B9	GONC AE742
	GOVLNG 138B9

Level 2	Level 1	→	Level 1
Binary integer (start address of the	Binary integer end	→	String (disassemble between
memory area to disassemble)	address		the 2 address)
	Code object	→	String

ARM→

The ARM→ disassembler converts ARM assembly into a source string.

Each line contains an address and an instruction. If the system flag –71 is set (with 71 SF ), addresses are not shown, except for the destinations of jumps. In this case, the resulting source may be then reassembled if needed.

ARM→ can either disassemble a CODE object (which does not make much sense at this point in time) or the memory area between 2 given Saturn addresses (as binary integer).

Example:

			71 CF2		(default)					71 SF2
	874FF LDMGEIA R0 ! { R5 R6 R7 LP PC }						LDMGEIA R0 ! { R5 R6 R7 LP PC }
	87507	STMDB	R5	{ R5 R12 PC }			STMDB	R5		{ R5 R12 PC }
	8750F	BL	87527				BL	876E3
	87517	BLGE	87527				BLGE	876E3
	8751F	BGE	87527				BGE	876E3
	87527	ADD	R0	R0	R0		*876E3
	8752F	MOV	R0	R1			ADD	R0		R0 R0
	87537	TST	R4	R5			MOV	R0		R1
							TST	R4		R5
							@
Level 2						Level 1	→		Level 1
Binary integer (start address of the						Binary integer end	→		String (disassemble between
memory area to disassemble)						address			the 2 address)
						Code object	→		String

The Development Library 641