add asm version of the mkf function, tested with dump_600.c

1 files changed, 157 insertions, 0 deletions

diff --git a/csrc/mkf_asm.asm b/csrc/mkf_asm.asm
new file mode 100644
index 0000000..f9a562c
--- /dev/null
+++ b/csrc/mkf_asm.asm
@@ -0,0 +1,157 @@
+section .text
+global fcn_00455040
+extern table_483430
+extern table_483530
+extern data_483630
+extern data_4847bc
+
+fcn_00455040:
+push ebp
+mov ebp, esp
+push ebx
+push ecx
+push esi
+push edi
+mov esi, data_483630
+mov edi, data_4847bc
+mov ecx, 0x463              ; 1123
+rep movsd
+mov edi, dword [ebp + 8]    ; [0x8:4]=-1 ; 8
+mov esi, dword [ebp + 0xc]  ; [0xc:4]=-1 ; 12
+xor edx, edx
+L0:
+call fcn_004551bb
+or bh, bh
+jne L1
+mov byte [edi], bl
+inc edi
+jmp L0
+L1:
+mov eax, ecx
+push ecx
+shr eax, 3
+and ecx, 7
+mov eax, dword [esi + eax]
+shr eax, cl
+mov ebp, eax
+and ebp, 0xff
+mov cl, byte [ebp + table_483530]
+mov dh, byte [ebp + table_483430]
+shr eax, cl
+mov dl, al
+shl dl, 2
+shr dx, 2
+add cl, 6
+mov eax, ecx
+and eax, 0xff
+pop ecx
+add ecx, eax
+cmp dx, 0xfff
+je L2
+mov ebp, ecx
+sub ebx, 0xfd
+push esi
+lea esi, [edi - 1]
+sub esi, edx
+mov ecx, ebx
+rep movsb
+pop esi
+mov ecx, ebp
+jmp L0
+L2:
+pop edi
+pop esi
+pop ecx
+pop ebx
+pop ebp
+ret
+
+
+fcn_004551bb:
+mov ebx, 0x500              ; 1280
+L11:
+mov bx, word [ebx + data_4847bc + 1284] ; [0x484cc0:2]=0
+cmp bx, 0x502               ; 1282
+jae L10
+bt dword [esi], ecx
+inc ecx
+jae L11
+add bx, 2
+jmp L11
+L10:
+sub ebx, 0x502
+push ebx
+push ecx
+push edi
+call fcn_00455109
+pop edi
+pop ecx
+pop ebx
+shr bx, 1
+ret
+
+fcn_00455109:
+cmp word [data_4847bc + 1280], 0x8000
+jne L20
+push ebx
+call fcn_004550cc
+pop ebx
+L20:
+mov bx, word [ebx + data_4847bc + 3848]
+L21:
+inc word [ebx + data_4847bc]
+mov ax, word [ebx + data_4847bc]
+cmp ax, word [ebx + data_4847bc + 2]
+jbe L22
+lea edi, [ebx + data_4847bc + 2]
+mov ecx, 0x282
+dec ax
+repe scasw
+sub edi, data_4847bc+4
+inc ax
+xchg word [edi + data_4847bc], ax
+mov word [ebx + data_4847bc], ax
+mov ax, word [ebx + data_4847bc + 1284]
+mov cx, word [edi + data_4847bc + 1284]
+mov word [ecx + data_4847bc + 2566], bx
+cmp cx, 0x502
+jae L24
+mov word [ecx + data_4847bc + 2568], bx
+L24:
+xchg ax, cx
+mov word [ecx + data_4847bc + 2566], di
+cmp cx, 0x502
+jae L23
+mov word [ecx + data_4847bc + 2568], di
+L23:
+mov word [ebx + data_4847bc + 1284], ax
+mov word [edi + data_4847bc + 1284], cx
+mov bx, di
+L22:
+mov bx, word [ebx + data_4847bc + 2566]
+or bx, bx
+jne L21
+ret
+
+fcn_004550cc:
+mov edx, 0x141              ; 321
+xor ebp, ebp
+xor ecx, ecx
+L30:
+mov cx, word [ebp + data_4847bc + 3848]
+test word [ecx + data_4847bc], 1
+je L31
+mov ebx, ebp
+call L20
+L31:
+add ebp, 2
+dec edx
+jne L30
+xor ebx, ebx
+L32:
+shr word [ebx + data_4847bc], 1
+add ebx, 2
+cmp ebx, 0x502              ; 1282
+jb L32
+ret
+