+; | fc_mxcsr|fc_x87_cw| <alignment> | fbr_strg | fc_dealloc |
+; ----------------------------------------------------------------------------------
+; ----------------------------------------------------------------------------------
+; | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 |
+; ----------------------------------------------------------------------------------
+; | 0xc0 | 0xc4 | 0xc8 | 0xcc | 0xd0 | 0xd4 | 0xd8 | 0xdc |
+; ----------------------------------------------------------------------------------
+; | limit | base | R12 | R13 |
+; ----------------------------------------------------------------------------------
+; ----------------------------------------------------------------------------------
+; | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 |
+; ----------------------------------------------------------------------------------
+; | 0xe0 | 0xe4 | 0xe8 | 0xec | 0xf0 | 0xf4 | 0xf8 | 0xfc |
+; ----------------------------------------------------------------------------------
+; | R14 | R15 | RDI | RSI |
+; ----------------------------------------------------------------------------------
+; ----------------------------------------------------------------------------------
+; | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 |
+; ----------------------------------------------------------------------------------
+; | 0x100 | 0x104 | 0x108 | 0x10c | 0x110 | 0x114 | 0x118 | 0x11c |
+; ----------------------------------------------------------------------------------
+; | RBX | RBP | hidden | RIP |
+; ----------------------------------------------------------------------------------
+; ----------------------------------------------------------------------------------
+; | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 |
+; ----------------------------------------------------------------------------------
+; | 0x120 | 0x124 | 0x128 | 0x12c | 0x130 | 0x134 | 0x138 | 0x13c |
+; ----------------------------------------------------------------------------------
+; | parameter area |
+; ----------------------------------------------------------------------------------
+; ----------------------------------------------------------------------------------
+; | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 |
+; ----------------------------------------------------------------------------------
+; | 0x140 | 0x144 | 0x148 | 0x14c | 0x150 | 0x154 | 0x158 | 0x15c |
+; ----------------------------------------------------------------------------------
+; | FCTX | DATA | |