Hi everyone,
I want to release a syscall disassembler that I wrote recently.
I put the code on my github page: https://github.com/h...ll-disassembler.
You can build with: gcc -Wall -Wextra -O2 syscall.c disassemble.c
The usage is: [binary OS file] [syscall]
For syscall strlen you can do:
./a.out 2_04_0200_sh4.fls AD6
and the program would return:
Syscall offset table: 0x801C7D88 Syscall offset: 0x80197670 Offset: Code: Instruction: ... 80197670: A001 bra 0x001 80197672: E500 mov #0x00,R5 80197674: 7501 add #0x01,R5 80197676: 6643 mov R4,R6 80197678: 6260 mov.b @R6,R2 8019767A: 2228 tst R2,R2 8019767C: 8FFA bf/s 0xFA 8019767E: 7401 add #0x01,R4 80197680: 000B rts 80197682: 6053 mov R5,R0 80197684: 7FF4 add #0xF4,R15 80197686: 1F51 mov.l R5,@(0x1,R15) 80197688: 6543 mov R4,R5 8019768A: 1F62 mov.l R6,@(0x2,R15) 8019768C: 51F1 mov.l @(0x1,R15),R1 8019768E: A001 bra 0x001 80197690: 2F42 mov.l R4,@R15 80197692: 7501 add #0x01,R5 80197694: 6250 mov.b @R5,R2 80197696: 2228 tst R2,R2 80197698: 8BFB bf 0xFB 8019769A: A007 bra 0x007 8019769C: E400 mov #0x00,R4 8019769E: 6214 mov.b @R1+,R2 801976A0: 6653 mov R5,R6 801976A2: 7501 add #0x01,R5 801976A4: 2228 tst R2,R2 801976A6: 8D04 bt/s 0x04 801976A8: 2620 mov.b R2,@R6 801976AA: 7401 add #0x01,R4 801976AC: 57F2 mov.l @(0x2,R15),R7 801976AE: 3472 cmp/hs R7,R4 801976B0: 8BF5 bf 0xF5 801976B2: 51F2 mov.l @(0x2,R15),R1 801976B4: 3412 cmp/hs R1,R4 801976B6: 8B01 bf 0x01 801976B8: E200 mov #0x00,R2 801976BA: 2520 mov.b R2,@R5 801976BC: 60F2 mov.l @R15,R0 801976BE: 000B rts ...
I can also release the code I wrote to generate the disassembler if anyone is interested.
I hope someone can find this useful 
Thank you for reading,
hejsotnoss
Edited by hejsotnoss, 26 March 2020 - 07:01 PM.
