OSO/TinyCC
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

x86-64-asm: Support high registers %r8 - %r15

Browse Source 
This requires correctly handling the REX prefix.
As bonus we now also support the four 8bit registers
spl,bpl,sil,dil, which are decoded as ah,ch,dh,bh in non-long-mode
(and require a REX prefix as well).
This commit is contained in:
Michael Matz
2016-08-04 04:47:03 +02:00
parent 8765826465
commit 4cb7047f0f
3 changed files with 215 additions and 43 deletions
Download Patch File Download Diff File Expand all files Collapse all files

40
tests/asmtest.S
View File

@ -76,6 +76,22 @@ movq %dr6, %rax
movl %fs, %ecx
movl %ebx, %fs
#ifdef __x86_64__
movq %r8, %r9
movq %r10, %r11
movq %r12, %r13
movq %r14, %r15
movq %rax, %r9
movq %r15, %rsi
inc %r9b
dec %r10w
not %r11d
negq %r12
decb %r13b
incw %r14w
notl %r15d
#endif
movsbl 0x1000, %eax
movsbw 0x1000, %ax
movswl 0x1000, %eax
@ -184,6 +200,24 @@ addl $0x123, (%ebp)
addl $0x123, (%esp)
cmpl $0x123, (%esp)
#ifdef __x86_64__
xor %bl,%ah
xor %bl,%r8b
xor %r9b,%bl
xor %sil,%cl
add %eax,(%r8d)
add %ebx,(%r9)
add %edx,(%r10d,%r11d)
add %ecx,(%r12,%r13)
add %esi,(%r14,%r15,4)
add %edi,0x1000(%rbx,%r12,8)
add %r11,0x1000(%ebp,%r9d,8)
movb $12, %ah
movb $13, %bpl
movb $14, %dil
movb $15, %r12b
#endif
add %eax, (%ebx)
add (%ebx), %eax
@ -796,10 +830,10 @@ nop
movd %rdi, %xmm2
movd (%rbx), %mm3
movd (%rbx), %xmm3
movd %mm1, %rsi
movd %mm1, %r12
movd %xmm2, %rdi
movd %mm3, (%rdx)
movd %xmm3, (%rdx)
movd %mm3, (%r8)
movd %xmm3, (%r13)
#endif
movq (%ebp), %mm1