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dc88b885e9
Nasm gives warnings about labels without colons in the end; these were particularly prevalent in struc members: ".size" has be ".size:". Nasm also wasn't happy with extra trailing commas when calling macros.
45 lines
1.4 KiB
PHP
45 lines
1.4 KiB
PHP
%ifdef INCLUDE_GMDLS
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%define SAMPLE_TABLE_SIZE 3440660 ; size of gmdls
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extern OpenFile ; requires windows
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extern ReadFile ; requires windows
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SECT_TEXT(sugmdls)
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EXPORT MANGLE_FUNC(su_load_gmdls,0)
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; Win64 ABI: RCX, RDX, R8, and R9
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sub rsp, 40 ; Win64 ABI requires "shadow space" + space for one parameter.
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mov rdx, PTRWORD MANGLE_DATA(su_sample_table)
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mov rcx, PTRWORD su_gmdls_path1
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su_gmdls_pathloop:
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xor r8,r8 ; OF_READ
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push rdx ; &ofstruct, blatantly reuse the sample table
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push rcx
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call OpenFile ; eax = OpenFile(path,&ofstruct,OF_READ)
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pop rcx
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add rcx, su_gmdls_path2 - su_gmdls_path1 ; if we ever get to third, then crash
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pop rdx
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cmp eax, -1 ; ecx == INVALID?
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je su_gmdls_pathloop
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movsxd rcx, eax
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mov qword [rsp+32],0
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mov r9, rdx
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mov r8d, SAMPLE_TABLE_SIZE ; number of bytes to read
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call ReadFile ; Readfile(handle,&su_sample_table,SAMPLE_TABLE_SIZE,&bytes_read,NULL)
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add rsp, 40 ; shadow space, as required by Win64 ABI
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ret
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SECT_DATA(sugmpath)
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su_gmdls_path1:
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db 'drivers/gm.dls',0
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su_gmdls_path2:
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db 'drivers/etc/gm.dls',0
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SECT_BSS(susamtbl)
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EXPORT MANGLE_DATA(su_sample_table)
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resb SAMPLE_TABLE_SIZE ; size of gmdls.
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%endif |