#!/bin/bash
#set -x
EE6502=${EE6502:=6502}
DATADIR=${DATADIR:="Data"}
SRCDIR=${SRCDIR:="${DATADIR}/src"}
MANIFEST=${MANIFEST:="${SRCDIR}/manifest.txt"}
NUMINST=${NUMINST:=1000}

[[ ! -d $DATADIR ]] && mkdir -p ${DATADIR}
[[ ! -d $SRCDIR ]] && mkdir -p ${SRCDIR}

SCRIPTDIR=$(dirname $(readlink -f $0))
MKCODE=${SCRIPTDIR}/mkcode
ASM=${SCRIPTDIR}/p65
BMPPGM=${SCRIPTDIR}/../tools/2bmp
name=$*
name=${name// /_}

function usage()
{
    echo "USAGE: $0 <offset:inc:nops> [<offset:inc:nops> ...]"
    exit -1
}

if [[ -z $name ]]; then
    usage
fi

if ! type -P ${EE6502} > /dev/null; then
    echo "ERROR: cannot find the 6502 executable (${EE6502}) to generate trace"
    usage
fi

if [[ ! -x ${MKCODE} ]]; then
    echo "ERROR: ${MKCODE} cannot be found or executed"
    usage
fi

if [[ ! -x ${BMPPGM} ]]; then
    echo "ERROR: ${BMPPGM} cannot be found or executed"
    usage
fi

src=${SRCDIR}/${name}.s
memimg=${SRCDIR}/${name}.img
trace=$(mktemp ${DATADIR}/XXXXXXXXXXXXXXXX.svbintrc)

# see if data already is in manifest for these parameters
# if so exit
if grep -q "^${name} " $MANIFEST >/dev/null 2>&1 ; then
    echo "Data for ${name} already exists"
    exit 0
fi

# else
# make source code file
${MKCODE} $@ > ${src}

if [[ ! -a ${src} ]]; then
    echo "ERROR: can't find $src"
    exit -1
fi

# assemble into an image
if ! ${ASM} ${src} ${memimg} ; then
    echo "ERROR: $ASM $src $memimg failed"
    exit -1
fi

if [[ ! -a ${memimg} ]] ; then
    echo "ERROR: can't find $memimg"
    exit -1
fi

# run image to create trace
if ! ${EE6502} -t sv -o ${trace} -c ${NUMINST} ${memimg} /dev/null 2> /dev/null ; then
    echo "ERROR: $EE6502 failed"
    exit -1
fi

if [[ ! -s ${trace} ]]; then
    echo "ERROR: $trace is empty"
    exit -1
fi

#(
#    cd $(dirname ${trace})
#    ${BMPPGM} -r $(( $NUMINST + 1 )) $(( 2**16 + 8 )) $(basename ${trace})
#)

# add to manifest
echo "${name} ${src} ${memimg} ${trace} $(md5sum ${trace}) : ${EE6502} -t sv -o ${trace} -c ${NUMINST} ${memimg} /dev/null 2\> /dev/null" >> ${MANIFEST}

# compress to save space
gzip -9 $trace
gzip -9 $memimg