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# Add the first 10 numbers, and return the result in the exit code.
#
# To run (from the subx directory):
# $ ./subx translate examples/ex3.subx -o examples/ex3
# $ ./subx run examples/ex3
# Expected result:
# $ echo $?
# 55
== code
# instruction effective address register displacement immediate
# . op subop mod rm32 base index scale r32
# . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes
# result: EBX = 0
bb/copy-to-EBX 0/imm32
# counter: ECX = 1
b9/copy-to-ECX 1/imm32
$loop:
# while (counter <= 10)
81 7/subop/compare 3/mod/direct 1/rm32/ECX . . . . . 0xa/imm32 # compare ECX
7f/jump-if-greater $exit/disp8
# result += counter
01/add 3/mod/direct 3/rm32/EBX . . . 1/r32/ECX . . # add ECX to EBX
# ++counter
41/inc-ECX
# loop
eb/jump $loop/disp8
$exit:
# syscall(exit, EBX)
b8/copy-to-EAX 1/imm32/exit
cd/syscall 0x80/imm8
# . . vim:nowrap:textwidth=0
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