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C OFFSET(i)
C Expands to 4*i, or to the empty string if i is zero
define(<OFFSET>, <ifelse($1,0,,eval(4*$1))>)
C OFFSET64(i)
C Expands to 8*i, or to the empty string if i is zero
define(<OFFSET64>, <ifelse($1,0,,eval(8*$1))>)
dnl LREG(reg) gives the 8-bit register corresponding to the given 64-bit register.
define(<LREG>,<ifelse(
$1, %rax, %al,
$1, %rbx, %bl,
$1, %rcx, %cl,
$1, %rdx, %dl,
$1, %rsi, %sil,
$1, %rdi, %dil,
$1, %rbp, %bpl,
$1, %r8, %r8b,
$1, %r9, %r9b,
$1, %r10, %r10b,
$1, %r11, %r11b,
$1, %r12, %r12b,
$1, %r13, %r13b,
$1, %r14, %r14b,
$1, %r15, %r15b)>)dnl
define(<HREG>,<ifelse(
$1, %rax, %ah,
$1, %rbx, %bh,
$1, %rcx, %ch,
$1, %rdx, %dh)>)dnl
define(<WREG>,<ifelse(
$1, %rax, %ax,
$1, %rbx, %bx,
$1, %rcx, %cx,
$1, %rdx, %dx,
$1, %rsi, %si,
$1, %rdi, %di,
$1, %rbp, %bp,
$1, %r8, %r8w,
$1, %r9, %r9w,
$1, %r10, %r10w,
$1, %r11, %r11w,
$1, %r12, %r12w,
$1, %r13, %r13w,
$1, %r14, %r14w,
$1, %r15, %r15w)>)dnl
define(<XREG>,<ifelse(
$1, %rax, %eax,
$1, %rbx, %ebx,
$1, %rcx, %ecx,
$1, %rdx, %edx,
$1, %rsi, %esi,
$1, %rdi, %edi,
$1, %rbp, %ebp,
$1, %r8, %r8d,
$1, %r9, %r9d,
$1, %r10, %r10d,
$1, %r11, %r11d,
$1, %r12, %r12d,
$1, %r13, %r13d,
$1, %r14, %r14d,
$1, %r15, %r15d)>)dnl
dnl W64_ENTRY(nargs, xmm_used)
define(<W64_ENTRY>, <
changequote([,])dnl
ifelse(<<<<<<<<<<<<<<< ignored; only for balancing)
ifelse(W64_ABI,yes,[
ifelse(eval($2 > 6), 1, [
sub [$]eval(8 + 16*($2 - 6)), %rsp
movdqu %xmm6, 0(%rsp)
])
ifelse(eval($2 > 7), 1, [
movdqu %xmm7, 16(%rsp)
])
ifelse(eval($2 > 8), 1, [
movdqu %xmm8, 32(%rsp)
])
ifelse(eval($2 > 9), 1, [
movdqu %xmm9, 48(%rsp)
])
ifelse(eval($2 > 10), 1, [
movdqu %xmm10, 64(%rsp)
])
ifelse(eval($2 > 11), 1, [
movdqu %xmm11, 80(%rsp)
])
ifelse(eval($2 > 12), 1, [
movdqu %xmm12, 96(%rsp)
])
ifelse(eval($2 > 13), 1, [
movdqu %xmm13, 112(%rsp)
])
ifelse(eval($2 > 14), 1, [
movdqu %xmm14, 128(%rsp)
])
ifelse(eval($2 > 15), 1, [
movdqu %xmm15, 144(%rsp)
])
ifelse(eval($1 >= 1), 1, [
push %rdi
mov %rcx, %rdi
])
ifelse(eval($1 >= 2), 1, [
push %rsi
mov %rdx, %rsi
])
ifelse(eval($1 >= 3), 1, [
mov %r8, %rdx
])
ifelse(eval($1 >= 4), 1, [
mov %r9, %rcx
])
ifelse(eval($1 >= 5), 1, [
mov 56(%rsp), %r8
])
])
changequote(<,>)dnl
>)
dnl W64_EXIT(nargs, xmm_used)
define(<W64_EXIT>, <
changequote([,])dnl
ifelse(<<<<<<<<<<<< ignored; only for balancing)
ifelse(W64_ABI,yes,[
ifelse(eval($1 >= 2), 1, [
pop %rsi
])
ifelse(eval($1 >= 1), 1, [
pop %rdi
])
ifelse(eval($2 > 15), 1, [
movdqu 144(%rsp), %xmm15
])
ifelse(eval($2 > 14), 1, [
movdqu 128(%rsp), %xmm14
])
ifelse(eval($2 > 13), 1, [
movdqu 112(%rsp), %xmm13
])
ifelse(eval($2 > 12), 1, [
movdqu 96(%rsp), %xmm12
])
ifelse(eval($2 > 11), 1, [
movdqu 80(%rsp), %xmm11
])
ifelse(eval($2 > 10), 1, [
movdqu 64(%rsp), %xmm10
])
ifelse(eval($2 > 9), 1, [
movdqu 48(%rsp), %xmm9
])
ifelse(eval($2 > 8), 1, [
movdqu 32(%rsp), %xmm8
])
ifelse(eval($2 > 7), 1, [
movdqu 16(%rsp), %xmm7
])
ifelse(eval($2 > 6), 1, [
movdqu 0(%rsp), %xmm6
add [$]eval(8 + 16*($2 - 6)), %rsp
])
])
changequote(<,>)dnl
>)
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