diff options
| -rwxr-xr-x | .bin/jrp.c | 55 |
1 files changed, 52 insertions, 3 deletions
diff --git a/.bin/jrp.c b/.bin/jrp.c index daeb1477..b98f750d 100755 --- a/.bin/jrp.c +++ b/.bin/jrp.c @@ -10,6 +10,7 @@ exec cc -Wall -Wextra $@ -o $(dirname $0)/jrp $0 typedef unsigned long long op; typedef long long value; +typedef unsigned long long uvalue; typedef value *(*fptr)(value *); enum { @@ -38,6 +39,44 @@ enum { #define IMMED_PUSH(x) ((op)(x) << 32) #define IMMED_HIGH(x) ((op)(x) & 0xffffffff00000000) +static void rt_print_ascii(value val) { + printf("%c\n", (char)val); +} + +static void rt_print_bin(value val) { + static char buf[sizeof(value) * 8 + 1]; + uvalue uval = val; + int i = sizeof(buf); + do { + buf[--i] = '0' + (uval & 1); + } while (uval >>= 1); + printf("%s\n", &buf[i]); +} + +static void rt_print_oct(value val) { + printf("%llo\n", val); +} + +static void rt_print_dec(value val) { + printf("%lld\n", val); +} + +static void rt_print_hex(value val) { + printf("%llx\n", val); +} + +#define JIT_PUSH(p, val) { \ + *p++ = OP_PUSH | IMMED_PUSH(val); \ + if (IMMED_HIGH(val)) { \ + *p++ = OP_HIGH | IMMED_HIGH(val); \ + } \ +} + +#define JIT_CALL(p, fn) { \ + JIT_PUSH(p, fn); \ + *p++ = OP_CALL; \ +} + int main() { int error; int page = getpagesize(); @@ -51,11 +90,21 @@ int main() { op *p = ops; *p++ = OP_PROL; - *p++ = OP_PUSH | IMMED_PUSH(1); - *p++ = OP_PUSH | IMMED_PUSH(2); + JIT_PUSH(p, 7); + JIT_PUSH(p, 10); + JIT_PUSH(p, 9); + *p++ = OP_MUL; *p++ = OP_ADD; *p++ = OP_DUP; - *p++ = OP_MUL; + *p++ = OP_DUP; + *p++ = OP_DUP; + *p++ = OP_DUP; + *p++ = OP_DUP; + JIT_CALL(p, rt_print_ascii); + JIT_CALL(p, rt_print_bin); + JIT_CALL(p, rt_print_oct); + JIT_CALL(p, rt_print_dec); + JIT_CALL(p, rt_print_hex); *p++ = OP_EPIL; error = mprotect(ops, page, PROT_READ | PROT_EXEC); |