thermosphere: add semihosting support & load a kernel using it when needed

basically host i/o
2019-07-31 02:30:17 +02:00
parent 6cbf5628d4
commit 7f094044b2
8 changed files with 333 additions and 4 deletions
--- a/thermosphere/src/exception_vectors.s
+++ b/thermosphere/src/exception_vectors.s
@@ -173,6 +173,12 @@ vector_entry serror_sp0
    .cfi_endproc
    /* To save space, insert in an unused vector segment. */

+.global semihosting_call
+.type   semihosting_call, %function
+semihosting_call:
+    hlt     #0xF000
+    ret
+
 .global doSmcIndirectCallImpl
 //.type   doSmcIndirectCallImpl, %function
 doSmcIndirectCallImpl: