default:
Internal ("Invalid address flags");
}
-
+
/* Return a pointer to the static buffer */
return Buf;
}
break;
case CF_LONG:
- /* Split the value into 4 bytes */
- B1 = (unsigned char) (Val >> 0);
- B2 = (unsigned char) (Val >> 8);
- B3 = (unsigned char) (Val >> 16);
- B4 = (unsigned char) (Val >> 24);
-
- /* Remember which bytes are done */
- Done = 0;
-
- /* Load the value */
- AddCodeLine ("ldx #$%02X", B2);
- Done |= 0x02;
- if (B2 == B3) {
- AddCodeLine ("stx sreg");
- Done |= 0x04;
- }
- if (B2 == B4) {
- AddCodeLine ("stx sreg+1");
- Done |= 0x08;
+ /* Split the value into 4 bytes */
+ B1 = (unsigned char) (Val >> 0);
+ B2 = (unsigned char) (Val >> 8);
+ B3 = (unsigned char) (Val >> 16);
+ B4 = (unsigned char) (Val >> 24);
+
+ /* Remember which bytes are done */
+ Done = 0;
+
+ /* Load the value */
+ AddCodeLine ("ldx #$%02X", B2);
+ Done |= 0x02;
+ if (B2 == B3) {
+ AddCodeLine ("stx sreg");
+ Done |= 0x04;
+ }
+ if (B2 == B4) {
+ AddCodeLine ("stx sreg+1");
+ Done |= 0x08;
}
if ((Done & 0x04) == 0 && B1 != B3) {
AddCodeLine ("lda #$%02X", B3);
-void g_reglong (unsigned flags)
+void g_regint (unsigned Flags)
+/* Make sure, the value in the primary register an int. Convert if necessary */
+{
+ unsigned L;
+
+ switch (Flags & CF_TYPE) {
+
+ case CF_CHAR:
+ if (Flags & CF_FORCECHAR) {
+ /* Conversion is from char */
+ if (Flags & CF_UNSIGNED) {
+ AddCodeLine ("ldx #$00");
+ } else {
+ L = GetLocalLabel();
+ AddCodeLine ("ldx #$00");
+ AddCodeLine ("cmp #$80");
+ AddCodeLine ("bcc %s", LocalLabelName (L));
+ AddCodeLine ("dex");
+ g_defcodelabel (L);
+ }
+ }
+ /* FALLTHROUGH */
+
+ case CF_INT:
+ case CF_LONG:
+ break;
+
+ default:
+ typeerror (Flags);
+ }
+}
+
+
+
+void g_reglong (unsigned Flags)
/* Make sure, the value in the primary register a long. Convert if necessary */
{
- switch (flags & CF_TYPE) {
+ unsigned L;
+
+ switch (Flags & CF_TYPE) {
case CF_CHAR:
+ if (Flags & CF_FORCECHAR) {
+ /* Conversion is from char */
+ if (Flags & CF_UNSIGNED) {
+ if (CodeSizeFactor >= 200) {
+ AddCodeLine ("ldx #$00");
+ AddCodeLine ("stx sreg");
+ AddCodeLine ("stx sreg+1");
+ } else {
+ AddCodeLine ("jsr aulong");
+ }
+ } else {
+ if (CodeSizeFactor >= 366) {
+ L = GetLocalLabel();
+ AddCodeLine ("ldx #$00");
+ AddCodeLine ("cmp #$80");
+ AddCodeLine ("bcc %s", LocalLabelName (L));
+ AddCodeLine ("dex");
+ g_defcodelabel (L);
+ AddCodeLine ("stx sreg");
+ AddCodeLine ("stx sreg+1");
+ } else {
+ AddCodeLine ("jsr along");
+ }
+ }
+ }
+ /* FALLTHROUGH */
+
case CF_INT:
- if (flags & CF_UNSIGNED) {
+ if (Flags & CF_UNSIGNED) {
if (CodeSizeFactor >= 200) {
ldyconst (0);
AddCodeLine ("sty sreg");
- AddCodeLine ("sty sreg+1");
+ AddCodeLine ("sty sreg+1");
} else {
AddCodeLine ("jsr axulong");
}
break;
default:
- typeerror (flags);
+ typeerror (Flags);
}
}
rtype = rhs & CF_TYPE;
/* Check if a conversion is needed */
- if (ltype == CF_LONG && rtype != CF_LONG && (rhs & CF_CONST) == 0) {
- /* We must promote the primary register to long */
- g_reglong (rhs);
+ if ((rhs & CF_CONST) == 0) {
+ if (ltype == CF_LONG && rtype != CF_LONG) {
+ /* We must promote the primary register to long */
+ g_reglong (rhs);
+ } else if (ltype == CF_INT && rtype != CF_INT) {
+ /* We must promote the primary register to int */
+ g_regint (rhs);
+ }
}
/* Do not need any other action. If the left type is int, and the primary
if (val < 0x100) {
AddCodeLine ("ldy #<(%s)", lbuf);
AddCodeLine ("sty ptr1");
- AddCodeLine ("ldy #>(%s+1)", lbuf);
+ AddCodeLine ("ldy #>(%s)", lbuf);
if (val == 1) {
AddCodeLine ("jsr laddeq1");
} else {
} else {
AddCodeLine ("ldy #<(%s)", lbuf);
AddCodeLine ("sty ptr1");
- AddCodeLine ("ldy #>(%s+1)", lbuf);
+ AddCodeLine ("ldy #>(%s)", lbuf);
AddCodeLine ("jsr laddeq");
}
break;
if (val < 0x100) {
AddCodeLine ("ldy #<(%s)", lbuf);
AddCodeLine ("sty ptr1");
- AddCodeLine ("ldy #>(%s+1)", lbuf);
+ AddCodeLine ("ldy #>(%s)", lbuf);
AddCodeLine ("lda #$%02X", (unsigned char)val);
AddCodeLine ("jsr lsubeqa");
} else {
} else {
AddCodeLine ("ldy #<(%s)", lbuf);
AddCodeLine ("sty ptr1");
- AddCodeLine ("ldy #>(%s+1)", lbuf);
+ AddCodeLine ("ldy #>(%s)", lbuf);
AddCodeLine ("jsr lsubeq");
}
break;
+void g_initregister (unsigned Label, unsigned Reg, unsigned Size)
+/* Initialize a register variable from static initialization data */
+{
+ /* Register variables do always have less than 128 bytes */
+ unsigned CodeLabel = GetLocalLabel ();
+ ldxconst (Size-1);
+ g_defcodelabel (CodeLabel);
+ AddCodeLine ("lda %s,x", GetLabelName (CF_STATIC, Label, 0));
+ AddCodeLine ("sta %s,x", GetLabelName (CF_REGVAR, Reg, 0));
+ AddCodeLine ("dex");
+ AddCodeLine ("bpl %s", LocalLabelName (CodeLabel));
+}
+
+
+
+void g_initauto (unsigned Label, unsigned Size)
+/* Initialize a local variable at stack offset zero from static data */
+{
+ unsigned CodeLabel = GetLocalLabel ();
+
+ CheckLocalOffs (Size);
+ if (Size <= 128) {
+ ldyconst (Size-1);
+ g_defcodelabel (CodeLabel);
+ AddCodeLine ("lda %s,y", GetLabelName (CF_STATIC, Label, 0));
+ AddCodeLine ("sta (sp),y");
+ AddCodeLine ("dey");
+ AddCodeLine ("bpl %s", LocalLabelName (CodeLabel));
+ } else if (Size <= 256) {
+ ldyconst (0);
+ g_defcodelabel (CodeLabel);
+ AddCodeLine ("lda %s,y", GetLabelName (CF_STATIC, Label, 0));
+ AddCodeLine ("sta (sp),y");
+ AddCodeLine ("iny");
+ AddCodeLine ("cpy #$%02X", (unsigned char) Size);
+ AddCodeLine ("bne %s", LocalLabelName (CodeLabel));
+ }
+}
+
+
+
+void g_initstatic (unsigned InitLabel, unsigned VarLabel, unsigned Size)
+/* Initialize a static local variable from static initialization data */
+{
+ if (Size <= 128) {
+ unsigned CodeLabel = GetLocalLabel ();
+ ldyconst (Size-1);
+ g_defcodelabel (CodeLabel);
+ AddCodeLine ("lda %s,y", GetLabelName (CF_STATIC, InitLabel, 0));
+ AddCodeLine ("sta %s,y", GetLabelName (CF_STATIC, VarLabel, 0));
+ AddCodeLine ("dey");
+ AddCodeLine ("bpl %s", LocalLabelName (CodeLabel));
+ } else if (Size <= 256) {
+ unsigned CodeLabel = GetLocalLabel ();
+ ldyconst (0);
+ g_defcodelabel (CodeLabel);
+ AddCodeLine ("lda %s,y", GetLabelName (CF_STATIC, InitLabel, 0));
+ AddCodeLine ("sta %s,y", GetLabelName (CF_STATIC, VarLabel, 0));
+ AddCodeLine ("iny");
+ AddCodeLine ("cpy #$%02X", (unsigned char) Size);
+ AddCodeLine ("bne %s", LocalLabelName (CodeLabel));
+ } else {
+ /* Use the easy way here: memcpy */
+ g_getimmed (CF_STATIC, VarLabel, 0);
+ AddCodeLine ("jsr pushax");
+ g_getimmed (CF_STATIC, InitLabel, 0);
+ AddCodeLine ("jsr pushax");
+ g_getimmed (CF_INT | CF_UNSIGNED | CF_CONST, Size, 0);
+ AddCodeLine ("jsr %s", GetLabelName (CF_EXTERNAL, (unsigned long) "memcpy", 0));
+ }
+}
+
+
+
/*****************************************************************************/
/* Switch statement */
/*****************************************************************************/
projects / cc65 / blobdiff