@ First setup a string on the heap for use as a substitution.
A"test"
SSSTSSSSSN      | PUSH 32 (address)
SSSTSSN         | PUSH 4 (count)
NSTTTTTTN       | JSR > 11111 (spew)

@ Now prepare arguments and call printf.
A"%c%s%d%u%i"
SSSTSTSTSN      | PUSH +42
SSSTSTSTSN      | PUSH +42
SSSTN           | PUSH +1
SSSTSSSSSN      | PUSH +32 (address)
SSSTSSSSSTN     | PUSH ASCII 'A'
SSSTSTN         | PUSH 5 (number of substitutions)
NSTTSSSN        | JSR > 1000 (printf)

NNN             | DIE

#include <heap.pvvs>
#include <stdio.pvvs>