code size optimization for Mega65
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@@ -1,63 +0,0 @@
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// #LAYOUT# M65 BASIC_0 #TAKE-HIGH
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// #LAYOUT# * * #IGNORE
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//
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// Fetches a single character (depending on version - also skips spaces) - optimized version
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//
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#if CONFIG_MEMORY_MODEL_46K || CONFIG_MEMORY_MODEL_50K
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fetch_character:
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ldy #0
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// Unmap BASIC lower ROM
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lda #$26
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sta CPU_R6510
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// Retrieve value from under ROMs, advance text pointer
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lda (TXTPTR), y
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inw TXTPTR
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// FALLTROUGH
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fetch_character_end:
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// Restore memory mapping
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pha
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lda #$27
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sta CPU_R6510
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pla
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rts
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fetch_character_skip_spaces:
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ldy #0
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// Unmap BASIC lower ROM
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lda #$26
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sta CPU_R6510
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// Retrieve value from under ROMs, advance text pointer
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!:
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lda (TXTPTR), y
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inw TXTPTR
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// Skip space characters
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cmp #$20
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beq !-
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// Restore memory mapping
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bra fetch_character_end
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#endif
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File renamed without changes.
File renamed without changes.
+48
@@ -103,4 +103,52 @@ peek_under_roms_via_FAC1_PLUS_1:
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#endif
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#if ROM_LAYOUT_M65
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fetch_character:
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ldy #0
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// Unmap BASIC lower ROM
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lda #$26
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sta CPU_R6510
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// Retrieve value from under ROMs, advance text pointer
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lda (TXTPTR), y
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inw TXTPTR
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// Restore memory mapping
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bra peek_under_roms_finalize
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fetch_character_skip_spaces:
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ldy #0
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// Unmap BASIC lower ROM
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lda #$26
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sta CPU_R6510
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// Retrieve value from under ROMs, advance text pointer
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!:
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lda (TXTPTR), y
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inw TXTPTR
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// Skip space characters
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cmp #$20
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beq !-
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// Restore memory mapping
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bra peek_under_roms_finalize
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#endif
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#endif
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