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base: izaya:c0b7b455700c96623cbd47a0d3dd41d6a3e8cac5
Branches Tags
izaya:master
izaya:z80asm
izaya:wip
izaya:forth
..
compare: izaya:02e6979a46fc98de7baa78732f35935cdbd93c4a
Branches Tags
izaya:master
izaya:z80asm
izaya:wip
izaya:forth

2 Commits
c0b7b45570 ... 02e6979a46

Author SHA1 Message Date
Virgil Dupras
02e6979a46 emul: implement AT-XY 
VI, here we come!
 2020-05-23 20:15:28 -04:00
Virgil Dupras
05ca95e759 emul: make updatebootstrap two-stepped 
Writing directly to forth.bin seems to cause problems in some
environments such as Travis CI.
 2020-05-23 19:35:36 -04:00
4 changed files with 20 additions and 1 deletions
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3
emul/Makefile
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@ -31,7 +31,8 @@ emul.o: emul.c
.PHONY: updatebootstrap
updatebootstrap: stage xcomp.fs pack
./stage < xcomp.fs | tee forth.bin > /dev/null
./stage < xcomp.fs > new.bin
mv new.bin forth.bin
.PHONY: pack
pack:

BIN
emul/forth.bin
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Binary file not shown.

16
emul/forth.c
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@ -17,6 +17,8 @@
// read 1024 bytes from the DATA port.
#define BLK_PORT 0x03
#define BLKDATA_PORT 0x04
#define SETX_PORT 0x05
#define SETY_PORT 0x06
static FILE *fp;
static int retcode = 0;
@ -64,6 +66,18 @@ static void iowr_ret(uint8_t val)
retcode = val;
}
static void iowr_setx(uint8_t val)
{
int y, x; getyx(w, y, x);
wmove(w, y, val);
}
static void iowr_sety(uint8_t val)
{
int y, x; getyx(w, y, x);
wmove(w, val, x);
}
int main(int argc, char *argv[])
{
Machine *m = emul_init();
@ -74,6 +88,8 @@ int main(int argc, char *argv[])
m->iord[STDIO_PORT] = iord_stdio;
m->iowr[STDIO_PORT] = iowr_stdio;
m->iowr[RET_PORT] = iowr_ret;
m->iowr[SETX_PORT] = iowr_setx;
m->iowr[SETY_PORT] = iowr_sety;
w = NULL;
if (argc == 2) {
fp = fopen(argv[1], "r");

2
emul/xcomp.fs
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@ -22,6 +22,8 @@
BLK( I + C@ 4 PC!
LOOP
;
: COLS 80 ; : LINES 32 ;
: AT-XY 6 PC! ( y ) 5 PC! ( x ) ;
380 LOAD ( xcomp core high )
(entry) _