FEX/unittests/ASM/Primary/Primary_AB_word_REP.asm
Ryan Houdek c51341294b Adds STOS unit tests
Tests all sizes that STOS supports, with the DF going up AND down.
2020-03-09 22:59:59 -07:00

34 lines
485 B
NASM

%ifdef CONFIG
{
"RegData": {
"RAX": "0xF1F2F1F2F1F2F1F2",
"RDX": "0x0",
"RDI": "0xE0000018"
},
"MemoryRegions": {
"0x100000000": "4096"
}
}
%endif
mov rdx, 0xe0000000
mov rax, 0x4142434445464748
mov [rdx + 8 * 0], rax
mov rax, 0x5152535455565758
mov [rdx + 8 * 1], rax
mov rax, 0x0
mov [rdx + 8 * 2], rax
mov [rdx + 8 * 3], rax
lea rdi, [rdx + 8 * 2]
cld
mov rcx, 0x4
mov rax, 0xF1F2
rep stosw ; rdi <- ax
mov rax, [rdx + 8 * 2]
mov rdx, [rdx + 8 * 3]
hlt