parent
49e399c9cf
commit
bd96a8ddc7
@ -1021,11 +1021,10 @@ void S9xSetC4 (uint8 byte, uint16 Address)
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if (Memory.C4RAM[0x1f4d] != 0x0e)
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printf("$7f4d=%02x, expected 0e for command 54 %02x\n", Memory.C4RAM[0x1f4d], Memory.C4RAM[0x1f4d]);
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#endif
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int64 b = (int64) READ_3WORD(Memory.C4RAM + 0x1f80);
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int64 c = b << 40;
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int64 a = SAR(c, 30);
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a = SAR(c, 10);
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int64 a = SAR((int64) READ_3WORD(Memory.C4RAM + 0x1f80) << 40, 40);
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//printf("%08X%08X\n", (uint32) (a>>32), (uint32) (a&0xFFFFFFFF));
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a *= a;
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//printf("%08X%08X\n", (uint32) (a>>32), (uint32) (a&0xFFFFFFFF));
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WRITE_3WORD(Memory.C4RAM + 0x1f83, a);
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WRITE_3WORD(Memory.C4RAM + 0x1f86, (a >> 24));
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break;
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