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Ported label linking and conditional jumps

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Maxime Chevalier-Boisvert 2020-09-11 15:10:16 -04:00 • committed by Alan Wu
parent 1c8fb90f6b
commit 6a12fb2067
3 changed files with 181 additions and 67 deletions
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28
ujit_asm_tests.c
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@ -92,20 +92,24 @@ void run_tests()
cb_set_pos(cb, 0); call(cb, RAX); check_bytes(cb, "FFD0");
cb_set_pos(cb, 0); call(cb, mem_opnd(64, RSP, 8)); check_bytes(cb, "FF542408");
/*
// jcc
test(
delegate void (CodeBlock cb) { auto l = cb.label(Label.LOOP); cb.jge(l); },
"0F8DFAFFFFFF"
);
test(
delegate void (CodeBlock cb) { cb.label(Label.LOOP); cb.jo(Label.LOOP); },
"0F80FAFFFFFF"
);
*/
{
cb_set_pos(cb, 0);
size_t loop_label = cb_new_label(cb, "loop");
jge(cb, loop_label);
cb_link_labels(cb);
check_bytes(cb, "0F8DFAFFFFFF");
}
{
cb_set_pos(cb, 0);
size_t loop_label = cb_new_label(cb, "loop");
jo(cb, loop_label);
cb_link_labels(cb);
check_bytes(cb, "0F80FAFFFFFF");
}
// jmp
cb_set_pos(cb, 0); jmp(cb, R12); check_bytes(cb, "41FFE4");
// jmp with RM operand
cb_set_pos(cb, 0); jmp_rm(cb, R12); check_bytes(cb, "41FFE4");
// lea
//cb_set_pos(cb, 0); lea(cb, EBX, mem_opnd(32, RSP, 4)); check_bytes(cb, "8D5C2404");