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X86: Adjust the various sizes used for the enter and leave instructions.

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Gabe Black 2009-08-06 21:44:42 -07:00
parent c7b894a06f
commit 2e3446a410
1 changed files with 11 additions and 10 deletions
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21
src/arch/x86/isa/insts/general_purpose/data_transfer/stack_operations.py
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@ -150,13 +150,14 @@ def macroop LEAVE {
# Make the default data size of pops 64 bits in 64 bit mode
.adjust_env oszIn64Override
mov t1, t1, rbp, dataSize=asz
mov t1, t1, rbp, dataSize=ssz
ld rbp, ss, [1, t0, t1], dataSize=ssz
mov rsp, rsp, t1, dataSize=asz
addi rsp, rsp, ssz, dataSize=asz
mov rsp, rsp, t1, dataSize=ssz
addi rsp, rsp, ssz, dataSize=ssz
};
def macroop ENTER_I_I {
.adjust_env oszIn64Override
# This needs to check all the addresses it writes to before it actually
# writes any values.
@ -168,10 +169,10 @@ def macroop ENTER_I_I {
# t1 is now the masked nesting level, and t2 is the amount of storage.
# Push rbp.
stupd rbp, ss, [1, t0, rsp], "-env.stackSize", dataSize=ssz
stupd rbp, ss, [1, t0, rsp], "-env.dataSize"
# Save the stack pointer for later
mov t6, t6, rsp, dataSize=asz
mov t6, t6, rsp
# If the nesting level is zero, skip all this stuff.
sub t0, t1, t0, flags=(EZF,), dataSize=2
@ -183,8 +184,8 @@ def macroop ENTER_I_I {
limm t4, "ULL(-1)", dataSize=8
topOfLoop:
ld t5, ss, [ssz, t4, rbp], dataSize=ssz
stupd t5, ss, [1, t0, rsp], "-env.stackSize"
ld t5, ss, [dsz, t4, rbp]
stupd t5, ss, [1, t0, rsp], "-env.dataSize"
# If we're not done yet, loop
subi t4, t4, 1, dataSize=8
@ -193,10 +194,10 @@ topOfLoop:
bottomOfLoop:
# Push the old rbp onto the stack
stupd t6, ss, [1, t0, rsp], "-env.stackSize"
stupd t6, ss, [1, t0, rsp], "-env.dataSize"
skipLoop:
sub rsp, rsp, t2, dataSize=asz
mov rbp, rbp, t6, dataSize=asz
sub rsp, rsp, t2, dataSize=ssz
mov rbp, rbp, t6
};
'''