diff options
Diffstat (limited to 'c/src/lib/libcpu/sparc/reg_win/window.S')
| -rw-r--r-- | c/src/lib/libcpu/sparc/reg_win/window.S | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/c/src/lib/libcpu/sparc/reg_win/window.S b/c/src/lib/libcpu/sparc/reg_win/window.S index b8745593f5..5a36fd65be 100644 --- a/c/src/lib/libcpu/sparc/reg_win/window.S +++ b/c/src/lib/libcpu/sparc/reg_win/window.S @@ -51,19 +51,24 @@ SYM(window_overflow_trap_handler): */ std %l0, [%sp + 0x00] ! save local register set + SPARC_LEON3FT_B2BST_NOP std %l2, [%sp + 0x08] mov %wim, %l3 sll %l3, SPARC_NUMBER_OF_REGISTER_WINDOWS-1 , %l2 ! l2 = WIM << (Number Windows - 1) std %l4, [%sp + 0x10] + SPARC_LEON3FT_B2BST_NOP std %l6, [%sp + 0x18] srl %l3, 1, %l3 ! l3 = WIM >> 1 wr %l3, %l2, %wim ! WIM = (WIM >> 1) ^ ! (WIM << (Number Windows - 1)) ! 3 instruction delay not needed here std %i0, [%sp + 0x20] ! save input register set + SPARC_LEON3FT_B2BST_NOP std %i2, [%sp + 0x28] + SPARC_LEON3FT_B2BST_NOP std %i4, [%sp + 0x30] + SPARC_LEON3FT_B2BST_NOP std %i6, [%sp + 0x38] restore ! Go back to trap window. jmp %l1 ! Re-execute save. @@ -206,13 +211,20 @@ save_frame_loop: */ std %l0, [%sp + CPU_STACK_FRAME_L0_OFFSET] + SPARC_LEON3FT_B2BST_NOP std %l2, [%sp + CPU_STACK_FRAME_L2_OFFSET] + SPARC_LEON3FT_B2BST_NOP std %l4, [%sp + CPU_STACK_FRAME_L4_OFFSET] + SPARC_LEON3FT_B2BST_NOP std %l6, [%sp + CPU_STACK_FRAME_L6_OFFSET] + SPARC_LEON3FT_B2BST_NOP std %i0, [%sp + CPU_STACK_FRAME_I0_OFFSET] + SPARC_LEON3FT_B2BST_NOP std %i2, [%sp + CPU_STACK_FRAME_I2_OFFSET] + SPARC_LEON3FT_B2BST_NOP std %i4, [%sp + CPU_STACK_FRAME_I4_OFFSET] + SPARC_LEON3FT_B2BST_NOP std %i6, [%sp + CPU_STACK_FRAME_I6_FP_OFFSET] ba save_frame_loop |