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Qkumba's suggestions ... saves ~200 bytes

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Bobbi Webber-Manners 2021-05-15 01:26:12 -04:00
parent 29f4450eb6
commit d4e692c9ef
1 changed files with 15 additions and 30 deletions
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45
apps/email.c
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@ -20,7 +20,7 @@
#include "email_common.h"
// Program constants
#define MSGS_PER_PAGE 18 //19 // Number of messages shown on summary screen
#define MSGS_PER_PAGE 19 // Number of messages shown on summary screen
#define PROMPT_ROW 24 // Row that data entry prompt appears on
#define LINEBUFSZ 1000 // According to RFC2822 Section 2.1.1 (998+CRLF)
#define READSZ 512 // Size of buffer for copying files
@ -985,19 +985,15 @@ void copyaux(char *src, char *dst, uint16_t len, uint8_t dir) {
char **a2 = (char**)0x3e;
char **a4 = (char**)0x42;
*a1 = src;
*a2 = src + len - 1; // AUXMOVE moves length+1 bytes!!
*a2 = src + len - 1; // AUXMOVE moves length+1 bytes!!
*a4 = dst;
if (dir == TOAUX) {
__asm__("sta $c000"); // Turn off 80STORE
__asm__("sec"); // Copy main->aux
__asm__("jsr $c311"); // AUXMOVE
__asm__("sta $c001"); // Turn on 80STORE
} else {
__asm__("sta $c000"); // Turn off 80STORE
__asm__("clc"); // Copy aux->main
__asm__("jsr $c311"); // AUXMOVE
__asm__("sta $c001"); // Turn on 80STORE
}
if (dir == TOAUX)
__asm__("sec"); // Copy main->aux
else
__asm__("clc"); // Copy aux->main
__asm__("sta $c000"); // Turn off 80STORE
__asm__("jsr $c311"); // AUXMOVE
__asm__("sta $c001"); // Turn on 80STORE
}
/*
@ -1021,6 +1017,7 @@ void save_screen_to_scrollback(FILE *fp) {
* Does not trash the screen holes, which must be preserved!
*/
void load_screen_from_scrollback(FILE *fp, uint8_t screen) {
uint8_t i;
if (fseek(fp, (screen - 1) * 0x0800, SEEK_SET)) {
error(ERR_NONFATAL, sb_err);
return;
@ -1029,26 +1026,14 @@ void load_screen_from_scrollback(FILE *fp, uint8_t screen) {
error(ERR_NONFATAL, sb_err);
return;
}
memcpy((void*)0x400, halfscreen + 0x000, 0x078);
memcpy((void*)0x480, halfscreen + 0x080, 0x078);
memcpy((void*)0x500, halfscreen + 0x100, 0x078);
memcpy((void*)0x580, halfscreen + 0x180, 0x078);
memcpy((void*)0x600, halfscreen + 0x200, 0x078);
memcpy((void*)0x680, halfscreen + 0x280, 0x078);
memcpy((void*)0x700, halfscreen + 0x300, 0x078);
memcpy((void*)0x780, halfscreen + 0x380, 0x078);
for (i = 0; i < 8; ++i)
memcpy((char*)0x400 + i * 0x80, halfscreen + i * 0x80, 0x078);
if (fread(halfscreen, 0x0400, 1, fp) != 1) { // Odd cols
error(ERR_NONFATAL, sb_err);
return;
}
copyaux(halfscreen + 0x000, (void*)0x400, 0x078, TOAUX);
copyaux(halfscreen + 0x080, (void*)0x480, 0x078, TOAUX);
copyaux(halfscreen + 0x100, (void*)0x500, 0x078, TOAUX);
copyaux(halfscreen + 0x180, (void*)0x580, 0x078, TOAUX);
copyaux(halfscreen + 0x200, (void*)0x600, 0x078, TOAUX);
copyaux(halfscreen + 0x280, (void*)0x680, 0x078, TOAUX);
copyaux(halfscreen + 0x300, (void*)0x700, 0x078, TOAUX);
copyaux(halfscreen + 0x380, (void*)0x780, 0x078, TOAUX);
for (i = 0; i < 8; ++i)
copyaux(halfscreen + i * 0x80, (char*)0x400 + i * 0x80, 0x078, TOAUX);
if (fseek(fp, 0, SEEK_END)) {
error(ERR_NONFATAL, sb_err);
return;
@ -2465,7 +2450,7 @@ void main(void) {
error(ERR_FATAL, "Need 128K");
videomode(VIDEOMODE_80COL);
// printf("heapmemavail=%d heapmaxavail=%d\n", _heapmemavail(), _heapmaxavail());
//printf("heapmemavail=%d heapmaxavail=%d\n", _heapmemavail(), _heapmaxavail());
readconfigfile();
load_prefs();
read_email_db(first_msg, 1, 0);