Martin Michelsen
62 lines
1.8 KiB
ArmAsm
62 lines
1.8 KiB
ArmAsm
# This function returns the game version, with values more specific than can be
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# detected by the sub_version field in the various login commands (e.g. 93/9D).
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# The returned value has the format SSPPRRVV, where:
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# S = version (31 = PSOv1, 32 = PSOv2)
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# G = game (4F = PSO)
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# R = region (45 = E, 4A = J, 50 = P)
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# V = minor version (31 = NTE, 32 = 11/2000, 33 = 12/2000, 24 = 01/2001,
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# 35 = 08/2001, 46 = not a prototype)
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# This results in a 4-character ASCII-printable version code which encodes all
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# of the above information. This value is called specific_version in the places
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# where it's used by the server.
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entry_ptr:
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reloc0:
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.offsetof start
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start:
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mova r0, [data_start]
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mov r1, r0
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mov.l r2, [r1]+ # target value
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again:
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mov.l r0, [r1]+ # candidate address
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cmpeq r0, 0
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bt done # return 0 if no version matched
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mov.l r0, [r0] # value from candidate address
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cmpeq r0, r2
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mov.l r0, [r1]+ # specific_version from this match
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bf again
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nop
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done:
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rets
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nop
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.align 4
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data_start:
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.data 0x61657244
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.data 0x8C239D78 # v1 NTE
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.data 0x314F4A31 # 1OJ1
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.data 0x8C24CA24 # v1 11/2000
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.data 0x314F4A32 # 1OJ2
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.data 0x8C2873AC # v1 12/2000
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.data 0x314F4A33 # 1OJ3
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.data 0x8C28B04C # v1 01/2001
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.data 0x314F4A34 # 1OJ4
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.data 0x8C291E34 # v1 JP
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.data 0x314F4A46 # 1OJF
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.data 0x8C28B924 # v1 USA
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.data 0x314F4546 # 1OEF
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.data 0x8C28B3F4 # v1 EU
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.data 0x314F5046 # 1OPF
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.data 0x8C2F3748 # v2 08/2001
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.data 0x324F4A35 # 2OJ5
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.data 0x8C2F11D0 # v2 JP
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.data 0x324F4A46 # 2OJF
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.data 0x8C2F3738 # v2 USA
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.data 0x324F4546 # 2OEF
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.data 0x8C2E7CE0 # v2 EU
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.data 0x324F5046 # 2OPF
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.data 0x00000000 # end sentinel
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