chris/open-roms
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removed some unneeded code

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FeralChild64 committed 2020-07-16 21:02:06 +02:00
1 parent f4fb9d3016
commit 8c70b51123
3 files changed
+4 -64
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src/basic/engine/varstr_free.s
+2 -45
View File
@@ -6,57 +6,14 @@
// Releases back memory used by string
//
// Input:
// - DSCPNT+1, DSCPNT+2 - pointer to string descriptor
// - DSCPNT+1, DSCPNT+2 - pointer to string
//
// XXX test this routine
// XXX check if this entry point is needed
varstr_free: // XXX is it needed? if not, we do not need peek_under_roms_via_DSCPNT_PLUS_1
// First copy the string descriptor data to DSCPNT
// XXX write optimized version for CONFIG_MEMORY_MODEL_46K || CONFIG_MEMORY_MODEL_50K
ldy #$00
#if CONFIG_MEMORY_MODEL_60K
ldx #<DSCPNT+1
jsr peek_under_roms
#elif CONFIG_MEMORY_MODEL_46K || CONFIG_MEMORY_MODEL_50K
jsr peek_under_roms_via_DSCPNT_PLUS_1
#else // CONFIG_MEMORY_MODEL_38K
lda (DSCPNT+1),y
#endif
sta DSCPNT+0 // length of the string
iny
#if CONFIG_MEMORY_MODEL_60K
jsr peek_under_roms
#elif CONFIG_MEMORY_MODEL_46K || CONFIG_MEMORY_MODEL_50K
jsr peek_under_roms_via_DSCPNT_PLUS_1
#else // CONFIG_MEMORY_MODEL_38K
lda (DSCPNT+1),y
#endif
pha
iny
#if CONFIG_MEMORY_MODEL_60K
jsr peek_under_roms
#elif CONFIG_MEMORY_MODEL_46K || CONFIG_MEMORY_MODEL_50K
jsr peek_under_roms_via_DSCPNT_PLUS_1
#else // CONFIG_MEMORY_MODEL_38K
lda (DSCPNT+1),y
#endif
sta DSCPNT+2
pla
sta DSCPNT+1
// FALLTROUGH
varstr_free_DSCPNT_set:
varstr_free:
// XXX consider moving size check (DSCPNT+0) here