oreodave/ovm
Archived
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Implemented a routine which prints out a buffer of characters and use it

Browse Source 
All in my assembly/virtual machine!
This commit is contained in:
Aryadev Chavali
2023-11-02 23:29:50 +00:00
parent 6dfc4ceaeb
commit 07f64b796d
1 changed files with 23 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
test.asm
View File

@@ -11,32 +11,35 @@
mset.byte 2
push.reg.word 0
msize
malloc.stack.byte
mov.word 1
mov.word 8
push.reg.word 0
call print_cptr
push.reg.word 8
mdelete
push.byte '\n'
print.char
halt
;;; print_cptr: Prints pointer to a buffer of characters. Pointer
;;; should be on the stack as a word.
print_cptr:
mov.word 0
push.word 0
mov.word 2
mov.word 1
push.reg.word 0
push.reg.word 2
push.word 1
push.reg.word 0
msize
sub.word
sub.word
mget.stack.byte
mov.byte 24
push.reg.word 1
push.reg.byte 24
push.reg.word 2
mset.stack.byte
push.reg.word 2
mget.stack.byte
print.char
push.reg.word 1
push.word 1
plus.word
mov.word 2
push.reg.word 2
mov.word 1
push.reg.word 1
push.reg.word 0
msize
eq.word
not.byte
jump.if.byte 17
halt
jump.if.byte *-13
ret