* ---------------------------------------------------------------------------------- *
* | 0x0 | 0x4 | 0x8 | 0xc | 0x10 | 0x14 | 0x18 | 0x1c | *
* ---------------------------------------------------------------------------------- *
- * | R12 | R13 | R14 | R15 | *
+ * | fc_mxcsr|fc_x87_cw| R12 | R13 | R14 | *
* ---------------------------------------------------------------------------------- *
* ---------------------------------------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ---------------------------------------------------------------------------------- *
* | 0x20 | 0x24 | 0x28 | 0x2c | 0x30 | 0x34 | 0x38 | 0x3c | *
* ---------------------------------------------------------------------------------- *
- * | RBX | RBP | RIP | EXIT | *
+ * | R15 | RBX | RBP | RIP | *
* ---------------------------------------------------------------------------------- *
* *
****************************************************************************************/
.type jump_fcontext,@function
.align 16
jump_fcontext:
- pushq %rbp /* save RBP */
- pushq %rbx /* save RBX */
- pushq %r15 /* save R15 */
- pushq %r14 /* save R14 */
- pushq %r13 /* save R13 */
- pushq %r12 /* save R12 */
+ leaq -0x38(%rsp), %rsp /* prepare stack */
+
+#if !defined(BOOST_USE_TSX)
+ stmxcsr (%rsp) /* save MMX control- and status-word */
+ fnstcw 0x4(%rsp) /* save x87 control-word */
+#endif
+
+ movq %r12, 0x8(%rsp) /* save R12 */
+ movq %r13, 0x10(%rsp) /* save R13 */
+ movq %r14, 0x18(%rsp) /* save R14 */
+ movq %r15, 0x20(%rsp) /* save R15 */
+ movq %rbx, 0x28(%rsp) /* save RBX */
+ movq %rbp, 0x30(%rsp) /* save RBP */
/* store RSP (pointing to context-data) in RAX */
movq %rsp, %rax
/* restore RSP (pointing to context-data) from RDI */
movq %rdi, %rsp
- popq %r12 /* restrore R12 */
- popq %r13 /* restrore R13 */
- popq %r14 /* restrore R14 */
- popq %r15 /* restrore R15 */
- popq %rbx /* restrore RBX */
- popq %rbp /* restrore RBP */
+ movq 0x38(%rsp), %r8 /* restore return-address */
+
+#if !defined(BOOST_USE_TSX)
+ ldmxcsr (%rsp) /* restore MMX control- and status-word */
+ fldcw 0x4(%rsp) /* restore x87 control-word */
+#endif
+
+ movq 0x8(%rsp), %r12 /* restore R12 */
+ movq 0x10(%rsp), %r13 /* restore R13 */
+ movq 0x18(%rsp), %r14 /* restore R14 */
+ movq 0x20(%rsp), %r15 /* restore R15 */
+ movq 0x28(%rsp), %rbx /* restore RBX */
+ movq 0x30(%rsp), %rbp /* restore RBP */
- /* restore return-address */
- popq %r8
+ leaq 0x40(%rsp), %rsp /* prepare stack */
/* return transfer_t from jump */
/* RAX == fctx, RDX == data */