diff options
Diffstat (limited to 'README.md')
| -rw-r--r-- | README.md | 14 |
1 files changed, 14 insertions, 0 deletions
@@ -119,6 +119,12 @@ ax bx cx dx sp bp si di │ mov r8, rax │ 49 89 c0 │ set r8 to rax (only used for syscalls) │ │ mov r9, rax │ 49 89 c1 │ set r9 to rax (only used for syscalls) │ │ mov r10, rax │ 49 89 c2 │ set r10 to rax (only used for syscalls)│ +| movsx rax, al | 48 0f be c0 | sign-extend al to rax | +| movsx rax, ax | 48 0f bf c0 | sign-extend ax to rax | +| movsx rax, eax | 48 63 c0 | sign-extend eax to rax | +| movzx rax, al | 48 0f b6 c0 | zero-extend al to rax | +| movzx rax, ax | 48 0f b7 c0 | zero-extend ax to rax | +| mov eax, eax | 89 c0 | zero-extend eax to rax | │ xchg rax, rbx │ 48 93 │ exchange the values of rax and rbx │ │ mov [rbx], rax │ 48 89 03 │ store rax as 8 bytes at address rbx │ │ mov rax, [rbx] │ 48 8b 03 │ load 8 bytes from address rbx into rax │ @@ -175,6 +181,14 @@ ax bx cx dx sp bp si di │ ja IMM32 │ 0f 87 IMM32 │ jump if "above" (like jg but unsigned) │ │ jbe IMM32 │ 0f 86 IMM32 │ jump if below or equal to │ │ jae IMM32 │ 0f 83 IMM32 │ jump if above or equal to │ +│ movss xmm0, [rax] │ f3 0f 10 00 │ load the float at *rax into xmm0 │ +│ movsd xmm0, [rax] │ f2 0f 10 00 │ load the double at *rax into xmm0 │ +│ movss [rax], xmm0 │ f3 0f 11 00 │ store the float in xmm0 at *rax │ +│ movsd [rax], xmm0 │ f2 0f 11 00 │ store the double in xmm0 at *rax │ +| cvtss2sd xmm0, xmm0 | f3 0f 5a c0 | convert xmm0 from float to double | +| cvtsd2ss xmm0, xmm0 | f2 0f 5a c0 | convert xmm0 from double to float | +| cvttsd2si rax, xmm0 | f2 48 0f 2c c0 | convert double in xmm0 to int in rax | +| cvtsi2sd xmm0, rax | f2 48 0f 2a c0 | convert int in rax to double in xmm0 | │ call rax │ ff d0 │ call the function at address rax │ │ ret │ c3 │ return from function │ │ syscall │ 0f 05 │ execute a system call │ |