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Code cleanup

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This commit is contained in:
Bobbi Webber-Manners 2020-08-06 22:30:51 -04:00
parent e5baca892a
commit 6e39f500e3
1 changed files with 4 additions and 17 deletions
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21
apps/edit.c
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@ -128,19 +128,14 @@ void set_gapbuf(uint16_t i, char c) {
void move_in_gapbuf(uint16_t dst, uint16_t src, size_t n) {
#ifdef AUXMEM
if (dst > src) {
// Start with highest addr
// dest[n-1] = src[n-1] etc.
*(uint16_t*)(0xfa) = n; // Stuff sz in ZP
// Start with highest addr and copy downwards
*(uint16_t*)(0xfa) = n; // Stuff sz in ZP
*(uint16_t*)(0xfc) = (uint16_t)0x800 + src + n - 1; // Stuff src in ZP
*(uint16_t*)(0xfe) = (uint16_t)0x800 + dst + n - 1; // Stuff dst in ZP
//*(uint16_t*)(0xfc) = (uint16_t)gapbuf + src + n - 1; // Stuff src in ZP
//*(uint16_t*)(0xfe) = (uint16_t)gapbuf + dst + n - 1; // Stuff dst in ZP
#ifdef AUXMEM
__asm__("sta $c005"); // Write aux mem
__asm__("sta $c003"); // Read aux mem
#endif
// memmove(gapbuf + dst, gapbuf + src, n);
// return;
dl1:
__asm__("lda ($fc)"); // *src
__asm__("sta ($fe)"); // -> *dst
@ -163,7 +158,6 @@ ds2:
ds3:
__asm__("dec $fa"); // LSB of n
__asm__("lda $fa"); // LSB of n - NEEDED?
__asm__("bne %g", dl1); // Loop
__asm__("lda $fb"); // MSB of n
__asm__("bne %g", dl1); // Loop
@ -172,18 +166,12 @@ ds3:
__asm__("sta $c004"); // Write main mem
#endif
} else {
// Start with lowest addr
*(uint16_t*)(0xfa) = n; // Stuff sz in ZP
// Start with highest addr and copy upwards
*(uint16_t*)(0xfa) = n; // Stuff sz in ZP
*(uint16_t*)(0xfc) = (uint16_t)0x800 + src; // Stuff src in ZP
*(uint16_t*)(0xfe) = (uint16_t)0x800 + dst; // Stuff dst in ZP
//*(uint16_t*)(0xfc) = (uint16_t)gapbuf + src; // Stuff src in ZP
//*(uint16_t*)(0xfe) = (uint16_t)gapbuf + dst; // Stuff dst in ZP
#ifdef AUXMEM
__asm__("sta $c005"); // Write aux mem
__asm__("sta $c003"); // Read aux mem
#endif
// memmove(gapbuf + dst, gapbuf + src, n);
// return;
al1:
__asm__("lda ($fc)"); // *src // d517
__asm__("sta ($fe)"); // -> *dst
@ -204,7 +192,6 @@ as2:
as3:
__asm__("dec $fa"); // LSB of n
__asm__("lda $fa"); // LSB of n - NEEDED?
__asm__("bne %g", al1); // Loop
__asm__("lda $fb"); // MSB of n
__asm__("bne %g", al1); // Loop