diff options
Diffstat (limited to 'fmdriver/fmdriver_fmp.c')
| -rw-r--r-- | fmdriver/fmdriver_fmp.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/fmdriver/fmdriver_fmp.c b/fmdriver/fmdriver_fmp.c index c57b975..54f6753 100644 --- a/fmdriver/fmdriver_fmp.c +++ b/fmdriver/fmdriver_fmp.c @@ -1,5 +1,6 @@ #include "fmdriver_fmp.h"
#include "fmdriver_common.h"
+#include <string.h>
static uint8_t fmp_rand71(struct driver_fmp *fmp) {
// on real PC-98, read from I/O port 0x71 (8253 Timer)
@@ -3200,6 +3201,48 @@ static void fmp_opna_interrupt(struct fmdriver_work *work) { }
}
+static void fmp_title(
+ struct fmdriver_work *work,
+ struct driver_fmp *fmp,
+ uint16_t offset) {
+ int l = 0;
+ int li = 0;
+ for (int si = 0;; si++) {
+ if (l >= 3) {
+ // Z8X
+ fmp->pdzf.mode = 1;
+ return;
+ }
+ if ((offset + si) >= fmp->datalen) {
+ fmp->comment[l][0] = 0;
+ return;
+ }
+ if (li >= FMP_COMMENT_BUFLEN) {
+ fmp->comment[l][0] = 0;
+ return;
+ }
+ uint8_t c = fmp->data[offset+si];
+ if (c == '\r') {
+ continue;
+ } else if (c == '\n') {
+ fmp->comment[l][li] = 0;
+ li = 0;
+ l++;
+ } else {
+ fmp->comment[l][li] = c;
+ if (!c) return;
+ li++;
+ }
+ }
+}
+
+static void fmp_check_pdzf(struct driver_fmp *fmp) {
+ for (int l = 0; l < 3; l++) {
+ if (strstr((const char *)fmp->comment[l], "using PDZF")) fmp->pdzf.mode = 2;
+ }
+}
+
+/*
// copy title string (CP932) to fmdriver_work struct,
// and detect which PDZF(/Z8X) mode to use
static void fmp_title(struct fmdriver_work *work,
@@ -3289,6 +3332,7 @@ static void fmp_title(struct fmdriver_work *work, }
}
}
+*/
bool fmp_load(struct driver_fmp *fmp,
uint8_t *data, uint16_t datalen)
@@ -3525,8 +3569,19 @@ bool fmp_load(struct driver_fmp *fmp, return true;
}
+static const char *fmp_get_comment(struct fmdriver_work *work, int line) {
+ if (line < 0) return 0;
+ if (line >= 3) return 0;
+ struct driver_fmp *fmp = work->driver;
+ if (!fmp->comment[line][0]) return 0;
+ return (const char *)fmp->comment[line];
+}
+
void fmp_init(struct fmdriver_work *work, struct driver_fmp *fmp) {
fmp_title(work, fmp, read16le(fmp->data)+4);
+ fmp_check_pdzf(fmp);
+ work->comment_mode_pmd = false;
+ work->get_comment = fmp_get_comment;
fmp_struct_init(work, fmp);
fmp_init_parts(work, fmp);
uint16_t fmtoneptr = fmp->datainfo.fmtoneptr;
|