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S5U1C62000A MANUAL EPSON 115
(S1C60/62 FAMILY ASSEMBLER PACKAGE)
CHAPTER 8: DISASSEMBLER
8.5 Disassembling Output
The data/code mnemonics are restored from the target code. As for the branch instructions, a label will
be automatically generated like "LXXXX:" where XXXX denotes a hexadecimal number string. ".org"
pseudo-instruction is used to specify the starting location of each code block.
The following shows examples of disassembled sources:
Sample outputs
Absolute list file "test.abs"
Linker 62 ver x.xx Absolute list file "TEST.ALS" Sun May 03 14:16:16 1998
1: ; main.s
2: ; test program (main routine)
3: ;
4:
5: ;***** INITIAL SP ADDRESS DEFINITION *****
6: #define SP_INIT_ADDR 0x80 ;SP init addr = 0x80
7:
8: ;***** BOOT, LOOP *****
9: .global INIT_RAM_BLK1 ; subroutine
10: .global INC_RAM_BLK1 ; subroutine
11:
12: .org 0x100
13: BOOT:
14: 0100 e08 ld a,SP_INIT_ADDR>>4 ; set SP
15: 0101 fe0 ld sph,a
16: 0102 e00 ld a, SP_INIT_ADDR&0xf
17: 0103 ff0 ld spl,a
18: 0104 e42 (+) pset 0x2
19: 0105 400 call INIT_RAM_BLK1 ; initialize RAM block 1
20: LOOP:
21: 0106 e42 (+) pset 0x2
22: 0107 406 call INC_RAM_BLK1 ; increment RAM block 1
23: 0108 006 jp LOOP ; infinity loop
24: ; sub.s
25: ; test program (subroutines)
26:
27: .global RAM_BLK1
28:
29: .org 0x200
30:
31: ;***** RAM block 1 initialize *****
32:
33: .global INIT_RAM_BLK1
34: INIT_RAM_BLK1:
35: 0200 e00 ld a,RAM_BLK1^h
36: 0201 e80 ld xp,a
37: 0202 b00 ld x,RAM_BLK1^l ;set RAM_BLK1 address to x
38: 0203 900 lbpx mx,0 ;set 0x0000 to RAM_BLK1
39: 0204 900 lbpx mx,0
40: 0205 fdf ret
41:
42: ;***** RAM block 1 increment *****
43:
44: .global INC_RAM_BLK1
45: INC_RAM_BLK1:
46: 0206 e00 ld a,RAM_BLK1^h
47: 0207 e80 ld xp,a
48: 0208 b00 ld x,RAM_BLK1^l ;set RAM_BLK1 address to x
49: 0209 e00 ld a,0
50: 020a f41 scf
51: 020b f28 acpx mx,a ; increment 16bit value
52: 020c f28 acpx mx,a
53: 020d f28 acpx mx,a
54: 020e a98 adc mx,a
55: 020f fdf ret