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Clean object file format code and documentation

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Remove unused code.

Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
This commit is contained in:
Antonio Niño Díaz
2017-04-16 19:54:58 +01:00
parent d92c284b85
commit ed6e4c4769
4 changed files with 7 additions and 95 deletions
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67
include/asm/mylink.h
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@@ -1,64 +1,6 @@
#ifndef RGBDS_ASM_LINK_H
#define RGBDS_ASM_LINK_H
/* RGB4 .o format:
*
* Header
* Symbols
* Sections
*
* Header:
* "RGB4"
* LONG NumberOfSymbols
* LONG NumberOfSections
*
* Symbols:
* Symbol[NumberOfSymbols]
*
* Symbol:
* char Name (NULL terminated)
* char nType
* if (nType != SYM_IMPORT)
* {
* LONG SectionID
* LONG Offset
* }
*
* Sections:
* Section[NumberOfSections]
*
* Section:
* char SectionName (NULL-terminated)
* LONG SizeInBytes
* char Type
* LONG OrgPosition
* LONG Bank
* LONG Alignment
* if (Type == ROM0 || Type == ROMX)
* {
* char Data[SizeInBytes]
* Patches
* }
*
* Patches:
* LONG NumberOfPatches
* Patch[NumberOfPatches]
*
* Patch:
* char Filename NULL-terminated
* LONG LineNo
* LONG Offset
* char Type
* LONG RpnByteSize
* Rpn[RpnByteSize]
*
* Rpn:
* Operators: 0x00-0x7F
* Constants: 0x80 0x00000000
* Symbols : 0x81 0x00000000
*
*/
enum {
RPN_ADD = 0,
RPN_SUB,
@@ -90,11 +32,6 @@ enum {
RPN_HRAM,
/* TODO: This hasn't been removed in order not to break compatibility
* with the existing object files, but it will be removed in a future
* version. */
RPN_unused,
RPN_RANGECHECK,
RPN_CONST = 0x80,
@@ -121,8 +58,6 @@ enum {
enum {
PATCH_BYTE = 0,
PATCH_WORD_L,
PATCH_LONG_L,
PATCH_WORD_B,
PATCH_LONG_B
PATCH_LONG_L
};
#endif

4
include/link/mylink.h
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@@ -96,9 +96,7 @@ struct sSymbol {
enum ePatchType {
PATCH_BYTE = 0,
PATCH_WORD_L,
PATCH_LONG_L,
PATCH_WORD_B,
PATCH_LONG_B
PATCH_LONG_L
};
struct sPatch {

27
src/link/patch.c
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@@ -264,22 +264,12 @@ Patch(void)
}
break;
case PATCH_WORD_L:
case PATCH_WORD_B:
if (t >= -32768 && t <= 65535) {
t &= 0xFFFF;
if (pPatch->Type == PATCH_WORD_L) {
pSect->pData[pPatch->nOffset] =
t & 0xFF;
pSect->pData[pPatch->nOffset +
1] =
(t >> 8) & 0xFF;
} else {
//Assume big endian
pSect->pData[pPatch->nOffset] =
(t >> 8) & 0xFF;
pSect->pData[pPatch->nOffset +
1] = t & 0xFF;
}
pSect->pData[pPatch->nOffset] =
t & 0xFF;
pSect->pData[pPatch->nOffset + 1] =
(t >> 8) & 0xFF;
} else {
errx(1,
"%s(%ld) : Value must be 16-bit",
@@ -296,15 +286,6 @@ Patch(void)
pSect->pData[pPatch->nOffset + 3] =
(t >> 24) & 0xFF;
break;
case PATCH_LONG_B:
pSect->pData[pPatch->nOffset + 0] =
(t >> 24) & 0xFF;
pSect->pData[pPatch->nOffset + 1] =
(t >> 16) & 0xFF;
pSect->pData[pPatch->nOffset + 2] =
(t >> 8) & 0xFF;
pSect->pData[pPatch->nOffset + 3] = t & 0xFF;
break;
}
pPatch = pPatch->pNext;

4
src/rgbds.rgbformat.5
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@@ -115,9 +115,7 @@ REPT NumberOfSections
BYTE Type ; 0 = BYTE patch.
; 1 = little endian WORD patch.
; 2 = little endianLONG patch.
; 3 = big endian WORD patch (unused)
; 4 = big endian LONG patch (unused)
; 2 = little endian LONG patch.
LONG RPNSize ; Size of the buffer with the RPN.
; expression.